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    Wyświetlanie 1-28 z 28
    Tytuł:
    Shelf Life Prediction of a Novel Liquid Fuel, 2-Dimethylaminoethyl Azide (DMAZ)
    Autorzy:
    Pakdehi, S. G.
    Niknam, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/358731.pdf
    Data publikacji:
    2017
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
    Tematy:
    DMAZ
    shelf life
    temperature
    moisture
    modelling
    Opis:
    2-Dimethylaminoethyl azide (DMAZ) is a good replacement for the hydrazine family in space industries. In this article, the accelerated ageing test method was applied for predicting the shelf life of DMAZ. The effective parameters on the storage of the fuel were temperature, the type of gas atmosphere with its pressure over the liquid fuel, and moisture. Appropriate conditions for DMAZ storage were N2 at a pressure of 3 bar and a moisture content of 0.05 wt.%. The sigmoid form of the decomposition curves obtained revealed that the decomposition reaction is autocatalytic. Modelling of the decomposition rate showed that the shelf life of DMAZ was 7.73 years at 25 °C.
    Źródło:
    Central European Journal of Energetic Materials; 2017, 14, 3; 675-687
    1733-7178
    Pojawia się w:
    Central European Journal of Energetic Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of Packaging on Microbial Quality of Edible Flowers During Refrigerated Storage
    Autorzy:
    Wilczyńska, Aleksandra
    Kukułowicz, Anita
    Lewandowska, Anna
    Powiązania:
    https://bibliotekanauki.pl/articles/16538532.pdf
    Data publikacji:
    2023-02-21
    Wydawca:
    Instytut Rozrodu Zwierząt i Badań Żywności Polskiej Akademii Nauk w Olsztynie
    Tematy:
    nasturtium
    calendula
    daisy
    microbiological contamination
    shelf life
    Opis:
    Edible flowers are food products that are usually eaten fresh without prior heat treatment. Due to their chemical composition and low degree of processing, they can be an excellent breeding ground for microorganisms, and thus a source of infection. Methods of their preservation include proper packaging and storage at low temperatures. Therefore the aim of this study was to evaluate the effect of type of packaging (vacuum-sealed polyamide/polyethylene bag and polyethylene terephthalate box) on the microbial contamination of edible flowers including nasturtium, calendula, and daisy during refrigerated storage. The counts of selected pathogenic bacteria, total yeasts and moulds on the day of harvesting and after 1–3 days of refrigerated storage were determined. The results showed that the edible flowers did not contain Salmonella sp. or Escherichia coli (except nasturtiums), while all flowers contained both yeast and moulds at counts about 4–5 log cfu/g, and Staphylococcus aureus at numbers ranging from 1.89 to 2.72 log cfu/g. The differences in the counts of moulds and S. aureus were statistically significant depending on the type of flower. Neither the type of packaging nor storage time under refrigerated conditions influenced the degree of microbial contamination of the flowers.
    Źródło:
    Polish Journal of Food and Nutrition Sciences; 2023, 73, 1; 32-38
    1230-0322
    2083-6007
    Pojawia się w:
    Polish Journal of Food and Nutrition Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    New technologies for extending shelf life of birch tree sap
    Autorzy:
    Bilek, M.
    Cebula, E.
    Krupa, K.
    Lorenc, K.
    Adamowicz, T.
    Sosnowski, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/411095.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Oddział w Lublinie PAN
    Tematy:
    birch tree sap
    microfiltration
    ultraviolet
    ultrasound
    shelf life
    clean label
    Opis:
    Three experiments were carried out to assess the effectiveness of the so-called new technologies in extending birch tree sap shelf life. In the first one, microfiltration of birch sap was carried out using 0.22 μm, 0.45 μm and 0.8 μm filters. In the second experiment, ultraviolet radiation was applied for 5, 15 and 45 minutes. In the third experiment ultrasound was applied with one-, two-, three- and four-fold use. Regardless of the pore diameter, all the microfiltered samples were non-perishable for at least a month at room temperature. The efficacy of ultrasound was also demonstrated. The four-fold use of ultrasound proved to be the most effective and prolonged the shelf life of birch sap from one to two days at room temperature and from four to twelve days in refrigeration conditions. In turn, the use of ultraviolet radiation did not extend the shelf life of birch sap, although in refrigeration conditions the clouding was significantly inhibited. However, there is no doubt that among the so-called new technologies, microfiltration is the most advantageous in extending shelf life of birch sap and has perspectives for use in food industry.
    Źródło:
    ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes; 2018, 7, 4; 3-8
    2084-5715
    Pojawia się w:
    ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Fractional Factorial Design and Desirability Function-Based Approach in Spice Paprika Processing Technology to Improve Extractable Colour Stability
    Autorzy:
    Koncsek, Arnold
    Szokol, Lajos
    Krizsa, Vivien
    Daood, Hussein G.
    Helyes, Lajos
    Veha, Antal
    Szabo, Balazs P.
    Powiązania:
    https://bibliotekanauki.pl/articles/2019335.pdf
    Data publikacji:
    2022-03-01
    Wydawca:
    Instytut Rozrodu Zwierząt i Badań Żywności Polskiej Akademii Nauk w Olsztynie
    Tematy:
    spice-paprika
    extractable colour
    experimental design
    accelerated shelf-life test
    Opis:
    The storage-stability of extractable colour in paprika powder is strongly influenced by the processing steps. The purpose of this research work was to decrease the degradation rate of extractable colour of paprika powders to 3-4 ASTA units/month and increase the shelf-life. Fractional factorial experimental design and desirability function-based approach was applied to moderate the adverse effect of the key-importance processing steps on colour agent content. Photochemical-accelerated shelf-life test was used for the empirically-based quality improvement. Post-harvest ripening, drying, sorting (seed content), milling and additives (paprika seed oil, tocopherol extract) were identified as important for the degradation rate of extractable colour. The colour stability was very sensitive to the milling and drying intensity, while proper setup of other processing steps compensated the adverse effect of drying and milling parameters. The supplementation with cold-pressed spice paprika seed oil was demonstrated as a natural way of colour stabilization. At the highest desirability value (0.986) the rate constant of accelerated colour stability test (k) and shelf-life time (θS[100ASTA]) were −0.494 ASTA units/day and 2326 days, respectively. Alternative factor level settings enabled taking into account processing-tradition and efficiency expectation. In these cases, desirability values and the predicted shelf-life were 0.5-0.8 and 712-918 days, respectively. Validation study showed that the real observed rate constant and shelf-life values met the predicted values and their 95% confidence interval.
    Źródło:
    Polish Journal of Food and Nutrition Sciences; 2022, 72, 1; 91-100
    1230-0322
    2083-6007
    Pojawia się w:
    Polish Journal of Food and Nutrition Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of the Ultraviolet C Light-Emitting Diode Treatment on the Quality of Soil-Grown and Pot-Grown Red Raspberries
    Autorzy:
    Giuggioli, Nicole R.
    Nucera, Daniele M.
    Piano, Serenella
    Ollani, Selene
    Powiązania:
    https://bibliotekanauki.pl/articles/24024622.pdf
    Data publikacji:
    2023-11-14
    Wydawca:
    Instytut Rozrodu Zwierząt i Badań Żywności Polskiej Akademii Nauk w Olsztynie
    Tematy:
    Rubus idaeus L
    ultraviolet radiation
    bioactive compounds
    shelf-life extension
    Opis:
    Red raspberries (Rubus idaeus L.) are often chosen by consumers for their flavour, taste, and health-promoting properties A relevant issue related to these fruits is their high perishability. The aim of this study was to investigate the effect of the ultraviolet C light-emitting diode (UVC-LED) treatment on soil-grown and pot-grown raspberries in extending their shelf-life, maintaining their high quality throughout the preservation period, and improving features related to their phenolic compound content. The UVC-LED treatment increased the total phenolic content (158 to 200 mg GAE/100 g) and ferric reducing antioxidant power (55.3 to 78.6 mmol Fe2+/kg) of the pot-grown raspberries when the UVC-LED treatment was followed by storage in a climate-controlled room (20°C). Total anthocyanin content did not increase significantly compared to the control samples. Contrary to expectations, no effect of reducing the microbial count after storage was observed due to the exposure of raspberries to the UVC-LED radiation. The positive outcomes derived from the analyses of bioactive compounds may be implemented in further studies on the same matrix to better manage the treatment and its conditions, such as the exposure time, the distance from the LED lamps, and the UVC-rays’ dose, in order to find the best combination in terms of efficacy and efficiency.
    Źródło:
    Polish Journal of Food and Nutrition Sciences; 2023, 73, 4; 345-353
    1230-0322
    2083-6007
    Pojawia się w:
    Polish Journal of Food and Nutrition Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Efficiency of Locally Available Spices to Improve Shelf Life and Sensory Attributes of Teff Injera
    Autorzy:
    Geta, Kindu
    Powiązania:
    https://bibliotekanauki.pl/articles/1046532.pdf
    Data publikacji:
    2019
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Debre Tabor
    Injera
    Moulds
    Sensory evaluation
    Shelf life
    Spices
    fermented foods
    Opis:
    Injera is one of the fermented foods that is made from different cereals, including sorghum, teff, maize, wheat, barley, or a combination of some of these cereals. Despite the fact that injera is a favorite staple food, mould spoilage caused by Aspergillus, Penicillium, Mucur and Rhizopus spps is a serious problem that affects the shelf life of injera, the staple Ethiopian fermented bread. There were no reports on the efficiency of spices on shelf life and sensory attributes of any of the traditional Ethiopian fermented foods especially in teff injera. Therefore, this study was carried out to evaluate the efficiency of locally available spices to enhance the shelf life and sensory attributes of teff injera. Isolation and identification of fungi that spoiled injera was carried out by standard procedures. The efficiency of spices to increase shelf life of injera was evaluated in vivo and sensory attributes of preserved injera was evaluated by 30 panelists. The results revealed that four types of fungal species belonging to the genera of Penicillium, Aspergillus, Rhizopus and Mucur species were isolated from spoiled teff injera. Teff injera containing powder and water extract of 2% N. sativa were the most preferred in terms of taste with mean rating of 6.9; ethanol extracts of 2% N. sativa was the most preferred in terms of colour and allover acceptance with mean rating of 6.9and 6.93 respectively. On the basis of the current findings, tested spices could be a good candidate to improve the shelf life and sensory attributes of teff injera. Therefore, further studies are needed to study their toxicology and isolate the bio-active components responsible for shelf life and sensory improvement from these plants.
    Źródło:
    World Scientific News; 2019, 136; 159-172
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Estimations of shelf life of catfish skin crackers in polypropylene plastic packaging using the ASLT (Accelerated Shelf Life Testing) method
    Autorzy:
    Umam, Ade Khoerul
    Rostini, Iis
    Subiyanto, Subiyanto
    Intan, Rusky
    Powiązania:
    https://bibliotekanauki.pl/articles/1062799.pdf
    Data publikacji:
    2019
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Accelerated Shelf Life Testing
    Arrhenius
    Pangasius humeralis
    Pangasius hypophtalmus
    Pangasius jambal
    Pangasius lithostoma
    Pangasius nasutus
    Pangasius nieuwenhuisii
    Pangasius pangasius
    Pangasius polyuranodon
    catfish skin crackers
    polypropylene plastic packaging
    shelf life
    Opis:
    This research aims to determine the shelf life of catfish skin crackers in polypropylene plastic packaging using the ASLT method. This test was conducted in the Fisheries Product Processing Laboratory of the Faculty of Fisheries and Marine Sciences, Padjadjaran University and testing the content of water content and TBA (Thiobarbituric Acid) of catfish skin crackers at the Food Technology Laboratory, Faculty of Food Science Technology, Padjadjaran University from September to November 2018. This study used an experimental method consisting of 3 storage temperature treatments at 25 ºC, 35 ºC and 45 ºC. Observations carried out include sensory (hedonic) test, water content test, and TBA (Thiobarbituric Acid) test. For the calculation, Arrhenius model was chosen with odor as a critical parameter to determine the shelf life which had the biggest R2 value with equation Arrhenius Ln K = 1079.8 (1/T) – 5.5161, with R2 value equal to 0.9212. The shelf life of catfish skin crackers that was saved at the room temperature (25 ºC) was 39 days or 1.3 month.
    Źródło:
    World Scientific News; 2019, 133; 248-262
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Perspective for the use of chitin mineral food additives in the technology of hard-smoked sausages
    Autorzy:
    Kuprina, Elena E.
    Murashev, Sergey V.
    Gorlach, Elena A.
    Abramzon, Valeria V.
    Demidov, Pavel I.
    Grishina, Evgenia S.
    Kostyleva, Anastasia K.
    Treydenfeld, Diana S.
    Powiązania:
    https://bibliotekanauki.pl/articles/1034348.pdf
    Data publikacji:
    2019
    Wydawca:
    Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
    Tematy:
    "Hizitel"
    calcium
    chitin-mineral substance
    dietary supplement
    nutritional and biological value
    shelf life
    Opis:
    The problem of calcium deficiency in the diet of modern man is well known. Calcium deficiency can lead to osteoporosis and frequent bone fractures, rickets, skeletal muscle cramps, thrombosis, hypertension, allergies, and rectal cancer, etc. There is also a shortage of dietary fibre due to excessive refined products. This problem is proposed to be solved by the manufacture of a functional food product-dry-cured sausage, with the addition of biologically active chitin-mineral food supplement “Hizitel” based on dietary fibre.Thefood supplementwasobtained by processing the shell-containing raw materials in the electrolyser. The selected method does not provide for the use of aggressive substances, thereby preserving the native structure of the chitin–mineral complex of the shell. The effect of the concentration of chitin–mineral food supplement in dry-cured sausage on the acidity and solid content in the product has been studied. The optimal concentration of added hizitel has been determined to prolong the shelf life and enrich the product with minerals and vitamins.
    Źródło:
    Progress on Chemistry and Application of Chitin and its Derivatives; 2019, 24; 96-105
    1896-5644
    Pojawia się w:
    Progress on Chemistry and Application of Chitin and its Derivatives
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of waxing on the water balance and keeping qualities of cut anthuriums
    Autorzy:
    Mujaffar, S.
    Sankat, C.K.
    Powiązania:
    https://bibliotekanauki.pl/articles/24151.pdf
    Data publikacji:
    2003
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    flower
    shelf life
    anthurium
    cut
    waxing
    keeping quality
    transpiration
    fruit wax
    water balance
    Źródło:
    International Agrophysics; 2003, 17, 2
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Hyperbaric Storage at Subzero Temperature – the Effect on the Shelf-Life and Selected Quality Characteristics of Raw Pork Sausages
    Autorzy:
    Malinowska-Pańczyk, Edyta
    Mazur, Katarzyna
    Powiązania:
    https://bibliotekanauki.pl/articles/31341111.pdf
    Data publikacji:
    2024-04-23
    Wydawca:
    Instytut Rozrodu Zwierząt i Badań Żywności Polskiej Akademii Nauk w Olsztynie
    Tematy:
    raw meat product
    high pressure
    TBARS
    shelf-life
    denaturation of proteins
    drip loss
    Opis:
    The aim of this study was to determine the microbiological stability and changes occurring in selected physicochemical properties of raw pork sausages during hyperbaric storage at subzero temperature (HS-ST). It was shown that storage at moderate pressures (up to 111 MPa) led to a reduction in microbial populations. After 21 days of storage under these conditions, no microorganisms were detected in the samples. Additionally, the inhibition of thiobarbituric acid reactive substance (TBARS) formation was observed under HS-ST conditions. The negative effect of the storage at 111 MPa/−10℃ was the sausage colour change from pink to grey-pink or grey, visible to the naked eye. Such changes did not occur in the samples stored at 60 MPa/−5℃ for 35 days. The results showed that applying HS-ST at 60 MPa/−5℃ allowed the shelf-life of raw pork sausages to be effectively extended by at least 35 days without visible quality deterioration.
    Źródło:
    Polish Journal of Food and Nutrition Sciences; 2024, 74, 2; 130-136
    1230-0322
    2083-6007
    Pojawia się w:
    Polish Journal of Food and Nutrition Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The effect of post-harvest storage on the weight of Golden Delicious apples
    Autorzy:
    Kassebi, Salma
    Korzenszky, Péter
    Powiązania:
    https://bibliotekanauki.pl/articles/2086186.pdf
    Data publikacji:
    2021
    Wydawca:
    Państwowa Wyższa Szkoła Zawodowa w Tarnowie
    Tematy:
    Golden Delicious apple
    storage
    weight loss
    shelf life
    jabłko Golden Delicious
    składowanie
    utrata wagi
    okres trwałości
    Opis:
    Apples, like other fruits, are exposed to stress during their growth and development in the field, also during harvest and the postharvest environment (processing, storage, and transportation). The refrigeration system allows for bulk handling of food products from harvest to market, ensuring that food products are maintained in their freshness and integrity for an extended period through careful management of storage temperature and humidity. This study investigated the effects of storage on the weight loss of apples (Golden Delicious fruits harvested at maturity), under refrigerated conditions at a temperature of 5 ± 0.5°C and relative humidity of 82% and under ambient storage at a temperature of 25 ± 0.5°C and relative humidity of 60%, over 3 months. The findings revealed that the two groups of apples experienced weight reduction at different levels. Apples placed at cold storage presented a loss of weight between 3.31 g and 4.49 g; however, apples stored at ambient temperature showed a significant loss of weight between 21.90 g and 31.76 g.
    Źródło:
    Science, Technology and Innovation; 2021, 13, 2; 7--11
    2544-9125
    Pojawia się w:
    Science, Technology and Innovation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Additions of Extract Turmeric on the Presto of Lalawak Fish (Barbodes balleroides) Stored at Room Temperature
    Autorzy:
    Aulia, Syifa
    Rostini, Iis
    Junianto, Junianto
    Pratama, Rusky Intan
    Powiązania:
    https://bibliotekanauki.pl/articles/1058044.pdf
    Data publikacji:
    2019
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Barbodes balleroides
    Barbonymus balleroides
    Lalawak Fish
    TPC (Total Plate Count)
    Turmeric
    Water content
    pH
    pindang presto
    shelf life
    Opis:
    The purpose of this research is to determine the effectiveness of turmeric and its best concentration in preserving the presto of lalawak fish based on the characteristics of microbiological tests and chemical tests including checking water content and pH. The research experimental method covered five treatments by adding turmeric extract solutions of 0%, 1%, 3%, 5%, and 7%. The test parameters observed in the research were microbiological tests using the method of TPC (Total Plate Count) in duplicate and chemical tests including checking water content and pH. The results showed that all treatments by adding turmeric extract were with concentrations of 1%, 3%, 5%, and 7% able to extend the shelf life presto of lalawak fish more than two days compared to the presto of lalawak fish which were not treated with turmeric extract or control (0%) which can only last two days. The treatment of the addition of 5% turmeric extract is able to provide the long lasting strength of lalawak fish for up to five days so that the shelf life is longer than other treatments, as evidenced by the TPC (Total Plate Count) value of 5.81×105 CFU / gram on the 6th day. The water content reached 67.5% on the 6th day and the pH value reached 6.50 on the 5th day.
    Źródło:
    World Scientific News; 2019, 134, 2; 63-73
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Characteristics of postharvest quality of chrysanthemum cut flowers under pretreatment with nitrogenous compounds
    Autorzy:
    Souri, M.K.
    Goodarzizadeh, S.
    Ahmadi, M.
    Hatamian, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/11865013.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
    Tematy:
    plant cultivation
    chrysanthemum
    ornamental plant
    flowering plant
    cut flower
    shelf life
    postharvest quality
    pretreatment
    nitrogenous nutrient
    ammonium
    carotenoid
    Opis:
    This study was done using three nitrogenous compounds to evaluate their effects on postharvest characteristics of chrysanthemum (Chrysanthemum indicum) cut flowers. The study consisted of three separate and parallel experiments, in which ammonium sulfate, calcium nitrate and potassium nitrate were used in different concentrations of zero, 50, 100, 200 and 500 mg dm ‒3 N for pretreatment of stems for 6 hour before transferring to holding d-water solution. The results showed that petal ion leakage and leaf SPAD values were increased by increasing ammonium sulfate, but not calcium or potassium nitrate. Petal carotenoids were increased by pretreatment of ammonium sulfate and potassium nitrate. There was constant increase in water uptake by increasing the levels of calcium nitrate and potassium nitrate, while ammonium sulfate at high concentrations (200 and 500 mg dm ‒3 N) resulted in significant less water uptake compared to control. Ammonium sulfate in 50 and 100 mg dm ‒3 increased shelf life of pretreated stems, but higher concentrations significantly reduced cut flowers shelf life. Increasing concentrations of calcium nitrate and particularly potassium nitrate have led to prolongation of flower shelf life to 12 days compared to 6 days of control. The results indicate that pretreatment of chrysanthemum cut flowers with ammonium sulfate in rather low concentrations or with moderate to high concentrations of calcium nitrate or potassium nitrate can significantly improve shelf life and postharvest flower qualities.
    Źródło:
    Acta Scientiarum Polonorum. Hortorum Cultus; 2018, 17, 3; 83-90
    1644-0692
    Pojawia się w:
    Acta Scientiarum Polonorum. Hortorum Cultus
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Effect of Garlic Extract Addition on Tilapia Skin Gelatin Based Edible Coating Towards Antimicrobial Properties and Fish Meatball’s Shelf Life
    Autorzy:
    Reynaldi, Ahmad
    Rostini, Iis
    Afrianto, Eddy
    Rochima, Emma
    Powiązania:
    https://bibliotekanauki.pl/articles/1058047.pdf
    Data publikacji:
    2019
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    E. coli
    Pseudomonas aeruginosa
    Salmonella typhimurium
    Staphyllococcus aureus
    TPC
    edible coating
    extract
    garlic
    pH values
    shelf life
    tilapia gelatin
    Opis:
    The purpose of this research is to determine the best concentration and effect of garlic extract incorporated on tilapia skin gelatin-based edible coating to preserve and extend the shelf life of fish meatball at cold storage. This research was conducted from May 2018 until October 2018 on Fisheries Product Processing Laboratory of The Faculty of Fisheries and Marine Sciences, Universitas Padjadjaran. The garlic extract conducted with maceration method with ethanol 96% was performed at Organic Chemical Laboratory FMIPA Universitas Padjadjaran, and for TPC test, inhibition test of edible coating Tilapia’s fish-skin with garlic extract was conducted in Microbiology and Molecular Biotechnology Laboratory of Faculty of Fisheries and Marine Sciences Universitas Padjadjaran. The method used is experimental method with 5 treatments which is meatballs without edible coating. The addition of garlic extract was done with various concentration at 0%, 1%, 1.5%, 2%. The observations were Total Plate Count (TPC) test, inhibition zone test against Pseudomonas aeruginosa, and pH value. The results showed that the best treatment is 2% garlic extract with TPC value 1.1×105 cfu/g during 14 days of storage and concluded that it could extend the shelf life of meatball until 14 days, pH value was 7.03 and inhibition zone against P. aeruginosa was 7.01 mm. The addition of garlic extract on tilapia skin gelatin-based edible coating could extend the shelf life of fish meatballs until 14 days on cold storage.
    Źródło:
    World Scientific News; 2019, 134, 2; 74-85
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Extension of mushroom shelf-life by ultrasound treatment combined with high pressure argon
    Autorzy:
    Lagnika, C.
    Zhang, M.
    Nsor-Atindana, J.
    Tounkara, F.
    Powiązania:
    https://bibliotekanauki.pl/articles/25801.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    mushroom zob.tez cultivated mushroom
    ultrasound
    high pressure argon
    edible mushroom
    mushroom
    white mushroom zob.mushroom
    shelf life
    storage
    Opis:
    Effects of ultrasound, high pressure argon, and treatments comprising their combinations on physicochemical and microbiological characteristics of white mushrooms were studied during 9 days of storage at 4°C. High pressure argon treatments were relatively effective in retaining firmness and were found to maintain the cell integrity. White mushrooms firmness after 9 days of storage was increased from 2.79 N for untreated mushrooms up to 3.01, 3.24, 3.58 N for ultrasound, treatments comprising ultrasound and high pressure argon, high pressure argon, respectively. Similarly, the loss of water, ascorbic acid and total soluble solid in fresh mushroom was also greatly reduced by the high pressure argon treatment. The ultrasound treatment followed by treatments comprising ultrasound and high pressure argon and high pressure argon, respectively exhibited a pronounced effect on retarding browning and in delaying mesophilic and psychrotrophic bacteria, yeasts and moulds growth in white mushroom, compared to the control during 9 days of cold storage. Treatments comprising ultrasound and high pressure argon treatment delayed pseudomonas growth, implying that it could extend shelf life of white mushrooms to 9 days at 4°C.
    Źródło:
    International Agrophysics; 2014, 28, 1
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Beer Aging Process®
    Proces starzenia piwa®
    Autorzy:
    Kucharczyk, Krzysztof
    Tuszyński, Tadeusz
    Powiązania:
    https://bibliotekanauki.pl/articles/2172237.pdf
    Data publikacji:
    2022
    Wydawca:
    Wyższa Szkoła Menedżerska w Warszawie
    Tematy:
    beer
    shelf life beer
    sensory properties
    volatile components
    technological conditions
    piwo
    trwałość piwa
    cechy sensoryczne
    komponenty lotne
    warunki technologiczne
    Opis:
    Currently, the main quality problem of beer is the change in its chemical composition during storage, which influences the sensory change of the drink. Unlike some wines, brewing is usually considered negative for the quality of the taste. Properly carried out technological activities, from the selection of raw materials to the bottling, can significantly improve the flavor durability of the beer. The aging process of the beer as expressed by the evaluation of the flavor stability of the beer is described by various analytical parameters as well as by sensory evaluation of beer. The analytical assessment usually relates to different tracer substances or to the capture of substances accelerating or inhibiting the oxidation process. However, the proper analysis to determine the flavor durability is the sensorics, which is the final sensory evaluation of the beer should always be carried out.
    Obecnie głównym problemem jakościowym piwa jest zmiana jego składu chemicznego podczas przechowywania, co wpływa na zmianę sensoryczną napoju. W przeciwieństwie do niektórych win, starzenie piwa jest zwykle uważane za negatywne dla jakości smaku. Odpowiednio przeprowadzone czynności technologiczne, począwszy od wyboru surowców aż po rozlew mogą w wyraźny sposób poprawić trwałość smakową piwa. Proces starzenia piwa wyrażony oceną stabilności smakowej piwa jest opisany przy użyciu różnorodnych parametrów analitycznych jak również za pomocą oceny sensorycznej piwa. Ocena analityczna odnosi się zazwyczaj do różnych substancji wskaźnikowych lub wychwycenia substancji przyspieszających bądź hamujących proces utleniania. Właściwą analizą do określenia trwałości smakowej jest ostatecznie sensoryka, stąd też należy zawsze dodatkowo przeprowadzać ocenę degustacyjną piwa.
    Źródło:
    Postępy Techniki Przetwórstwa Spożywczego; 2022, 2; 98--101
    0867-793X
    2719-3691
    Pojawia się w:
    Postępy Techniki Przetwórstwa Spożywczego
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Mechanical properties of texture of mixed flour bread with an admixture of rye grain
    Mechaniczne wlasciwosci tekstury chleba mieszanego z dodatkiem ziarna zyta
    Autorzy:
    Kusinska, E.
    Starek, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/793186.pdf
    Data publikacji:
    2011
    Wydawca:
    Komisja Motoryzacji i Energetyki Rolnictwa
    Tematy:
    mixed flour bread
    textural property
    shelf life
    rye grain
    mechanical property
    baking
    bread
    sensory evaluation
    dietary value
    chemical property
    moisture
    acidity
    Opis:
    The paper presents a comparison of the mechanical textural properties of mixed flour bread with an admixture of rye grain and without such an admixture (hardness, springiness, cohesiveness and chewiness) and its chemical properties (moisture and acidity). A discussion is given concerning the dough preparation and the baking of the bread. Additionally, based on sensory evaluation, the shelf live of the bread was determined, during which the bread is acceptable to the consumers.
    W pracy porównano mechaniczne właściwości teksturalne pieczywa mieszanego z dodatkiem ziarna żyta i bez jego dodatku (twardość, sprężystość, kohezyjność i żujność) oraz właściwości chemiczne (wilgotność i kwasowość). Omówiono przygotowanie ciasta i wypiek chleba oraz określono na podstawie oceny sensorycznej czas przechowywania, w którym pieczywo jest akceptowane przez konsumenta.
    Źródło:
    Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2011, 11C
    1641-7739
    Pojawia się w:
    Teka Komisji Motoryzacji i Energetyki Rolnictwa
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The system of date labelling in the food supply chain - the weak links from the perspective of final consumers
    Autorzy:
    Samotyja, Urszula
    Powiązania:
    https://bibliotekanauki.pl/articles/1835492.pdf
    Data publikacji:
    2021
    Wydawca:
    Wyższa Szkoła Logistyki
    Tematy:
    date labelling
    use by date
    minimum durability date
    shelf life
    food packaging
    food waste
    oznaczenie daty
    okres trwałości
    pakowanie żywności
    marnowanie żywności
    Opis:
    Background: Open date labelling influences the role that final consumers play as actors in the food supply chain in waste prevention and reduction. The aim of this study was to examine the date labelling system from the perspectives of consumers’ experience taking into consideration both technical aspects of date labels readability as well as their understanding of the concept of the shelf-life dates. Methods: The face to face interview method (n=1145) was applied with the use of the interview questionnaire. Research was conducted in Poland. Results: Despite declared interest in date labelling, consumers of food products experience difficulties with the system in force. Identified problems cover the physical layer of food packaging such as the font size, the presence of information, its readability and accessibility, and the occurrence of two date types on the basis of food quality and safety concept. Problems with correct interpretation of ‘use by’ and ‘best before’ dates were more often observed in the group of youths and with vocational education. The difficulties with too small font of the date information were more often claimed by the elderly food buyers. Conclusions: Actions for improvement should be undertaken by FBO’s, legislators and educators in order to achieve economic, environmental and social benefits from clear and consumer-friendly date labelling system. The actions should be matched to a given population group because different sub-groups face separate problems with the dates on food packaging.
    Źródło:
    LogForum; 2021, 17, 3; 331--339
    1734-459X
    Pojawia się w:
    LogForum
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Genetic analysis of selected tomato [Lycopersicon esculentum Mill.] traits in crosses between cultivated lines and the nor mutant
    Autorzy:
    Seroczynska, A
    Niemirowicz-Szczytt, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/2044241.pdf
    Data publikacji:
    1998
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    inheritance
    shelf life
    polygalacturonase gene
    Lycopersicon esculentum
    nor gene
    mutant
    heterozygote
    tomato breeding
    yield
    hybrid
    ripening
    cross
    earliness
    genetic analysis
    fruit weight
    Opis:
    The aim of the study was to investigate the delayed ripening caused by the nor gene and its possible interaction with selected traits observed in two combinations, namely, Dw₄ x nor and C36 x nor. The lines Dw₄ and C36 differed from each other in the majority of examined characters. There was no significant effect of reciprocal crosses on these characters (total yield, number of fruits, fruit weight, locule number, earliness and fruit shelf life). In Dw₄ x nor fruit weight was inherited with incomplete dominance of small fruit, while in C36 x nor the inheritance proved to be intermediate. This important statement made it possible to distinguish the hybrids characterised by fruit weight intermediate in relation to the parental forms. The experiments attested to the high significance of additive effects for fruit weight, periods from sowing to ripening and from flowering to ripening in both combinations and for locule number in Dw₄ x nor. It was also found that the nor gene slightly delayed the onset of fruit ripening but did not affect such traits as total yield, number and weight of fruits, locule number and period from sowing to flowering. In its homozygous state the nor gene totally inhibited fruit ripening. However, as a heterozygote it revealed an intermediate action, slowing down fruit ripening and prolonging shelf life 2-3 times as compared with standard tomato. The expression of the nor gene was also found to be dependent on the genetic background. Line C36 positively influenced the flavour and firmness of hybrid fruits, while Dw₄ had a negative effect on fruit quality.
    Źródło:
    Journal of Applied Genetics; 1998, 39, 3; 259-273
    1234-1983
    Pojawia się w:
    Journal of Applied Genetics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Design, construction, and performance evaluation of an evaporative cooling system for tomatoes storage
    Ocena projektu, budowy i działania systemu chłodzenia ewaporacyjnego w przechowywaniu pomidorów
    Autorzy:
    Awafo, Edward A.
    Nketsiah, Samuel
    Alhassan, Mumin
    Appiah-Kubi, Ebenezer
    Powiązania:
    https://bibliotekanauki.pl/articles/1427071.pdf
    Data publikacji:
    2020
    Wydawca:
    Polskie Towarzystwo Inżynierii Rolniczej
    Tematy:
    evaporative cooling system
    shelf life
    performance evaluation
    design
    construction
    tomato storage
    system chłodzenia ewaporacyjnego
    termin przydatności do spożycia
    ocena wydajności
    projekt
    budowa
    przechowywanie pomidorów
    Opis:
    An evaporative cooling system was designed and constructed to increase the shelf life of stored vegetables. The evaporative cooler was tested and evaluated using freshly harvested roma tomatoes. The equipment operates on the principle of evaporative cooling which increased the relative humidity and decreased temperature in the preservation chamber. The storage system was made up of wood of 25.4 mm thickness. A side of the system is made of jute sack, which was moistened with water flowing through a series of perforated pipes from a reservoir located at the top of the storage system. The water flowed under gravity. The relative humidity and temperature of the tomatoes were analyzed using tinytag humidity, temperature data logger. The weight loss of the tomatoes was also analyzed using a dial gauge scale. The results revealed that there was significant difference in using the evaporative cooling system for storing tomatoes as compared to ambient conditions. The average cooling efficiency was found to be 81%. The average temperature achieved in the cooling system dropped to an average of 23°C when compared to the average ambient temperature of 33°C, and the relative humidity also increased up to 99% when compared to the average ambient of 59%. The analysis of the evaporative cooling system showed that tomatoes can be stored for more than 6 days with negligible changes in weight, colour and firmness as compared to those under ambient condition, which deteriorated after day 3. The evaporative cooling system was found to be effective and hence can be used by farmers, households, and tomato processing factories for short term storage of fresh tomatoes.
    System chłodzenia ewaporacyjnego został zaprojektowany i skonstruowany w celu przedłużenia terminu przydatności do spożycia warzyw. Chłodziarka ewaporacyjna została zbadana i oceniona przy zastosowaniu świeżo zebranych pomidorów odmiany Roma. Sprzęt działa na zasadzie chłodzenia ewaporacyjnego, które zwiększa wilgotność względną i zmniejsza temperaturę w komorze przechowalniczej. System przechowywania został zbudowany z drewna o grubości 25,4 mm. Bok systemu składa się z worka jutowego zwilżonego wodą płynącą przez perforowane rurki ze zbiornika umieszczonego na szczycie systemu przechowywania. Woda płynęła pod wpływem siły ciężkości. Wilgotność względna i temperatura pomidorów mierzone były za pomocą rejestratora danych. Utrata wagi pomidorów analizowana była za pomocą czujnika zegarowego. Wyniki pokazały istotne różnice w przechowywaniu pomidorów w systemie chłodzenia ewaporacyjnego w porównaniu do warunków otoczenia. Średnia wydajność chłodzenia wynosiła 81%. Średnia temperatura osiągnięta w systemie chłodzenia spadła średnio do 23°C w porównaniu do średniej temperatury otoczenia wynoszącej 33°C, a wilgotność względna również zwiększyła się do 99% w porównaniu do średniej z otoczenia wynoszącej 59%. Analiza systemu chłodzenia ewaporacyjnego wykazała, że pomidory mogą być przechowywane przez więcej niż 6 dni z nieistotnymi zmianami w wadze, kolorze i jędrności w porównaniu do pomidorów przechowywanych w warunkach otoczenia, które uległy pogorszeniu się po 3 dniach. Stwierdzono skuteczność system chłodzenia i możliwość zastosowania go przez rolników, gospodarstwa domowe i przedsiębiorstwa przetwarzające pomidory w krótkoterminowym przechowywaniu świeżych pomidorów.
    Źródło:
    Agricultural Engineering; 2020, 24, 4; 1-12
    2083-1587
    Pojawia się w:
    Agricultural Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Design, construction, and performance evaluation of an evaporative cooling system for tomatoes storage
    Ocena projektu, budowy i działania systemu chłodzenia ewaporacyjnego w przechowywaniu pomidorów
    Autorzy:
    Awafo, Edward A.
    Nketsiah, Samuel
    Alhassan, Mumin
    Appiah-Kubi, Ebenezer
    Powiązania:
    https://bibliotekanauki.pl/articles/1427075.pdf
    Data publikacji:
    2020
    Wydawca:
    Polskie Towarzystwo Inżynierii Rolniczej
    Tematy:
    evaporative cooling system
    shelf life
    performance evaluation
    design
    construction
    tomato storage
    system chłodzenia ewaporacyjnego
    termin przydatności do spożycia
    ocena wydajności
    projekt
    budowa
    przechowywanie pomidorów
    Opis:
    An evaporative cooling system was designed and constructed to increase the shelf life of stored vegetables. The evaporative cooler was tested and evaluated using freshly harvested roma tomatoes. The equipment operates on the principle of evaporative cooling which increased the relative humidity and decreased temperature in the preservation chamber. The storage system was made up of wood of 25.4 mm thickness. A side of the system is made of jute sack, which was moistened with water flowing through a series of perforated pipes from a reservoir located at the top of the storage system. The water flowed under gravity. The relative humidity and temperature of the tomatoes were analyzed using tinytag humidity, temperature data logger. The weight loss of the tomatoes was also analyzed using a dial gauge scale. The results revealed that there was significant difference in using the evaporative cooling system for storing tomatoes as compared to ambient conditions. The average cooling efficiency was found to be 81%. The average temperature achieved in the cooling system dropped to an average of 23°C when compared to the average ambient temperature of 33°C, and the relative humidity also increased up to 99% when compared to the average ambient of 59%. The analysis of the evaporative cooling system showed that tomatoes can be stored for more than 6 days with negligible changes in weight, colour and firmness as compared to those under ambient condition, which deteriorated after day 3. The evaporative cooling system was found to be effective and hence can be used by farmers, households, and tomato processing factories for short term storage of fresh tomatoes.
    System chłodzenia ewaporacyjnego został zaprojektowany i skonstruowany w celu przedłużenia terminu przydatności do spożycia warzyw. Chłodziarka ewaporacyjna została zbadana i oceniona przy zastosowaniu świeżo zebranych pomidorów odmiany Roma. Sprzęt działa na zasadzie chłodzenia ewaporacyjnego, które zwiększa wilgotność względną i zmniejsza temperaturę w komorze przechowalniczej. System przechowywania został zbudowany z drewna o grubości 25,4 mm. Bok systemu składa się z worka jutowego zwilżonego wodą płynącą przez perforowane rurki ze zbiornika umieszczonego na szczycie systemu przechowywania. Woda płynęła pod wpływem siły ciężkości. Wilgotność względna i temperatura pomidorów mierzone były za pomocą rejestratora danych. Utrata wagi pomidorów analizowana była za pomocą czujnika zegarowego. Wyniki pokazały istotne różnice w przechowywaniu pomidorów w systemie chłodzenia ewaporacyjnego w porównaniu do warunków otoczenia. Średnia wydajność chłodzenia wynosiła 81%. Średnia temperatura osiągnięta w systemie chłodzenia spadła średnio do 23°C w porównaniu do średniej temperatury otoczenia wynoszącej 33°C, a wilgotność względna również zwiększyła się do 99% w porównaniu do średniej z otoczenia wynoszącej 59%. Analiza systemu chłodzenia ewaporacyjnego wykazała, że pomidory mogą być przechowywane przez więcej niż 6 dni z nieistotnymi zmianami w wadze, kolorze i jędrności w porównaniu do pomidorów przechowywanych w warunkach otoczenia, które uległy pogorszeniu się po 3 dniach. Stwierdzono skuteczność system chłodzenia i możliwość zastosowania go przez rolników, gospodarstwa domowe i przedsiębiorstwa przetwarzające pomidory w krótkoterminowym przechowywaniu świeżych pomidorów.
    Źródło:
    Agricultural Engineering; 2020, 24, 4; 1-12
    2083-1587
    Pojawia się w:
    Agricultural Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Peach antioxidant and phenolic activities influenced by the application of 1-methylcyclopropene (1-MCP) at post-harvest
    Autorzy:
    Shah, S.T.
    Sajid, M.
    Khan, N.U.
    Rab, A.
    Amin, N.U.
    Arif, M.
    Haleema, B.
    Saeed, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/12297475.pdf
    Data publikacji:
    2019
    Wydawca:
    Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
    Tematy:
    plant cultivation
    peach tree
    Prunus persica
    fruit tree
    antioxidant activity
    phenolic compound activity
    1-methylcyclopropene
    catalase activity
    fruit
    fruit decay
    storage durability
    shelf life
    Opis:
    Early maturing peach (Prunus persica) cultivars can fetch good market value but face a lot of post-harvest problems that lead to the post-harvest losses. The 1-methylcyclopropene (1-MCP) can provide new insights into plant ethylene responses and extend the shelf life and quality of fruits. Therefore, fruits of peach cultivar ‘Early Grand’ were dipped in various concentrations of 1-MCP (0, 0.3, 0.6 and 0.9 µg l–1), stored for 40 days at 8 ±2°C with 50% relative humidity and analyzed the fruits for physicochemical attributes at 10 days interval. The highest concentration of 1-MCP at 0.9 µg l–1 significantly improved the activity of antioxidants, catalase, free radical scavenging assay and total phenols. However, the peach fruits treated with 1MCP at 0.6 µgL–1 was effective in retaining the ascorbic acid, lowering the weight loss and fruit decay. Therefore, peach fruits can be treated with 1-MCP (0.6 µg l–1) solution for prolonging its shelf life up to 40 days under low temperature.
    Źródło:
    Acta Scientiarum Polonorum. Hortorum Cultus; 2019, 18, 2; 71-85
    1644-0692
    Pojawia się w:
    Acta Scientiarum Polonorum. Hortorum Cultus
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Combined treatments of modified atmosphere packaging with aminoethoxyvinylglycine maintained fruit quality in sweet cherry throughout cold storage and shelf life
    Autorzy:
    Guler, S.K.
    Karakaya, O.
    Karakaya, M.
    Ozturk, B.
    Aglar, E.
    Yarılgac, T.
    Gün, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/12613537.pdf
    Data publikacji:
    2019
    Wydawca:
    Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
    Tematy:
    wild cherry
    Prunus avium
    fruit quality
    fruit firmness
    fruit colour
    fruit storage
    weight loss
    shelf life
    packaging
    modified atmosphere
    aminoethoxyvinylglycine
    phenolic compound
    total phenol content
    Opis:
    The effects of combined aminoethoxyvinylglycine (AVG) and modified atmosphere packaging (MAP) treatments on quality attributes of ‘0900 Ziraat’ sweet cherry fruit during the cold storage and shelf life were investigated in this study. Significantly lower weight loss and decay ratios were observed in all treatments throughout the cold storage period as compared to the control. A similar case was also observed referring to the shelf life. MAP treatments were found to be more effective in retarding the weight loss and decay ratio. Higher hue angle values were measured from AVG-treated fruit at harvest. Similarly, hue angle of AVG and MAP-treated fruit were also higher than for the control in all periods of cold storage and on the 7th and 21st day of shelf life. AVG-treated fruit had higher firmness values than the control at harvest. However, higher firmness values were measured from MAP-treated fruit during the cold storage and shelf life. At the end of cold storage, lower SSC and higher titratable acidity values were observed in AVG and MAP-treated fruit than in the control. AVG + MAP treatments yielded significantly higher vitamin C, total phenolics and antioxidant activity values than the control. Contrarily, the control fruit had significantly higher total monomeric anthocyanin than the other treatments. Based on current findings, it was concluded that combined AVG + MAP treatments could be used as a beneficial tool to maintain the quality of sweet cherry fruit throughout the cold storage and shelf life.
    Źródło:
    Acta Scientiarum Polonorum. Hortorum Cultus; 2019, 18, 5; 13-26
    1644-0692
    Pojawia się w:
    Acta Scientiarum Polonorum. Hortorum Cultus
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zawartość witaminy C w sokach jednodniowych dostępnych w handlu i uzyskanych w sposób domowy
    The content of vitamin C in short-shelf-life (24 hrs) juices available commercially and produced at home
    Autorzy:
    Stankiewicz, J.
    Wieczorkiewicz, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/341851.pdf
    Data publikacji:
    2017
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydawnictwo Uniwersytetu Morskiego w Gdyni
    Tematy:
    witamina C
    kwas L-askorbinowy
    soki jabłkowe
    soki jednodniowe
    soki NFC
    vitamin C
    L-ascorbic acid
    apple juices
    short-shelf-life (24hrs) juices
    NFC juices
    Opis:
    Poziom witaminy C w sokach jabłkowych uwarunkowany jest wieloma czynnikami, do których należą odmiana i pochodzenie jabłek, ich sposób przetwarzania oraz przechowywanie w miejscu sprzedaży. Celem badań było porównanie zawartości witaminy C w sokach jabłkowych, jednoskładnikowych, wyciskanych, dostępnych w placówkach handlowych oraz w sokach wytłaczanych z jabłek metodą domową. Badaniu poddano soki jabłkowe NFC ośmiu różnych producentów, przechowywane w miejscach zakupu zarówno w temperaturze chłodniczej, jak i temperaturze otoczenia. Próbki soków wyciskanych sposobem domowym różnicowały gatunki jabłek, miejsca ich zakupu, kraj pochodzenia oraz ceny. Najwyższym poziomem zawartości witaminy C charakteryzowały się soki pochodzące z handlu na opakowaniach, których producenci deklarowali dodatek kwasu L-askorbinowego. Jedynie w próbkach dwóch producentów soków pochodzących z handlu odnotowano zawartość witaminy C na poziomie zbliżonym do ilości tego związku w sokach wyciskanych sposobem domowym. Poziom witaminy C w sokach wyciskanych sposobem domowym uzależniony był od odmiany jabłek.
    The level of vitamin C in apple juices is conditioned by many factors, which include; the variety and origin of apples, processing method and storage conditions at the point of sale. The aim of the study was to compare the content of vitamin C in single-ingredient apple juices that are available at retail outlets and those pressed at home. The study material consisted of not-from-concentrate apple juice samples produced by eight different manufacturers that were either, refrigerated or stored in ambient temperature at the point of purchase. Samples of home-pressed juice differed in terms of apple varieties, retail outlets where the apples were purchased, their country of origin and price. The highest content of vitamin C was noted in commercially available juices whose producers stated an addition of L-ascorbic acid on their packaging. Only two commercially available juices had vitamin C content similar to the amount of this compound found in homemade juices. The level of vitamin C in juices pressed at home depended on the apple variety.
    Źródło:
    Zeszyty Naukowe Akademii Morskiej w Gdyni; 2017, 99; 62-70
    1644-1818
    2451-2486
    Pojawia się w:
    Zeszyty Naukowe Akademii Morskiej w Gdyni
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effects of harpin and modified atmosphere packaging (MAP) on quality traits and bioactive compounds of sweet cherry fruits throughout cold storage and shelf life
    Autorzy:
    Aglar, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/11860069.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
    Tematy:
    wild cherry
    Prunus avium
    fruit quality
    qualitative trait
    modified atmosphere packaging
    bioactive compound
    anthocyanin
    total antioxidant
    total phenolics
    weight loss
    decay ratio
    fruit storage
    cold storage
    shelf life
    Opis:
    This study was conducted to investigate the effects of pre-harvest Harpin treatments and post-harvest MAP treatments on fruit quality attributes and bioactive compounds of ‘0900 Ziraat’ cherry cultivar throughout cold storage and shelf life of the fruits. Weight loss and decay ratios were significantly reduced with Harpin and MAP treatments. In general, lower L* and chroma values were measured in Harpin-treated fruits. As compared to control fruits, higher firmness, titratable acidity and vitamin C contents were measured in MAP and Harpin + MAP treated fruits throughout the cold storage and shelf life. On the other hand, lower solible solids content (SSC) values were observed in the same treatments. At harvest and shelf life measurements, higher total monomeric anthocyanin (TMA) and total phenolics (TPs) were measured in Harpintreated fruits than in control fruits. Although lower anthocyanin contents were obtained from MAP-treated fruits throughout the cold storage, higher values were observed throughout shelf life. Throughout cold storage and shelf life, MAP-treated fruits had lower total phenolics and total antioxidant activity (according to FRAP and TEAC assay) values than the control and Harpin-treated fruits. It was concluded that Harpin and MAP treatments could be used reduce weight losses and decays throughout the cold storage.
    Źródło:
    Acta Scientiarum Polonorum. Hortorum Cultus; 2018, 17, 4; 61-71
    1644-0692
    Pojawia się w:
    Acta Scientiarum Polonorum. Hortorum Cultus
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Postharvest quality of sweet cherry fruits as affected by bioregulators
    Autorzy:
    Kalajdžić, J.
    Milić, B.
    Petreš, M.
    Stankov, A.
    Grahovac, M.
    Magazin, N.
    Keserović, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/12305251.pdf
    Data publikacji:
    2019
    Wydawca:
    Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
    Tematy:
    plant cultivation
    sweet cherry
    Prunus avium
    Regina cultivar
    Summit cultivar
    Kordia cultivar
    fruit tree
    fruit quality
    postharvest quality
    bioregulator
    gibberellic acid
    shelf life
    weight loss
    fruit storage
    fruit decay
    fruit rot
    rot infestation
    Opis:
    During the cold storage of sweet cherry, severe losses can occur due to the water loss, phytopathogenic fungi and physiological disorders. The aim of this research was to assess the effects of treatments with NAA (α-naphthaleneacetic acid), BA (6-benzyladenine), and GA3 (gibberellic acid) on fruit quality at harvest and after 21 days of storage under two regimes, including 0°C, RH (relative humidity) 90% and 3°C, RH 70%, and after additional shelf life exposure. Sweet cherry cultivars – ‘Summit’, ‘Kordia’ and ‘Regina’ – were treated with bioregulators at the end of flowering. NAA significantly increased the fruit weight at harvest compared to the control in all cultivars assessed. BA stimulated the fruit growth in ‘Kordia’ and ‘Regina’, while it was ineffective in ‘Summit’. GA3 caused significant increase in fruit weight by 8.3% in ‘Kordia’ only. Moreover, BA and GA3 induced a higher firmness of fruits at harvest. Weight loss of fruits during storage at 0°C, RH 90%, was increased with NAA and reduced with GA3 in ‘Regina’ only. BA and GA3 reduced the weight loss of sweet cherry fruits stored at 3°C, RH 70%. Bioregulator treatments increased TA (titratable acidity) in fruits at harvest, while the effects on TA during storage were variable depending on the cultivar. ‘Summit’ had the highest sensitivity to storage fruit rot. BA and GA3 decreased the disease occurrence on fruits stored at 0°C in ‘Summit’ and ‘Kordia’.
    Źródło:
    Acta Scientiarum Polonorum. Hortorum Cultus; 2019, 18, 5; 189-199
    1644-0692
    Pojawia się w:
    Acta Scientiarum Polonorum. Hortorum Cultus
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The assesment of ten apple cultivars and their susceptibility on bruising after storage and shelf-life of fruit treated with 1-MCP
    Autorzy:
    Lipa, T.
    Szot, I.
    Dobrzański,Jr., B.
    Kapłan, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/12690352.pdf
    Data publikacji:
    2019
    Wydawca:
    Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
    Tematy:
    plant cultivation
    apple tree
    Beni Shogun cultivar
    Braeburn Hillwell cultivar
    Elise cultivar
    Gloster cultivar
    Golden Delicious cultivar
    Idared cultivar
    Jonagold Decosta cultivar
    Ligol cultivar
    Mutsu cultivar
    Sampion cultivar
    plant cultivar
    shelf-life
    fruit storage
    fruit firmness
    impact test
    bruising
    1-Methylcyclopropene
    Opis:
    Control fruits and fruits subjected to 1-MCP application were placed in cold storage at 2°C, 90% r.h. for 18 weeks. The susceptibility of ten apple cultivars: ‘Beni Shogun’, ‘Braeburn Hillwell’, ‘Elise’, ‘Gloster’, ‘Golden Delicious’, ‘Idared’, ‘Jonagold Decosta’, ‘Ligol’, ‘Mutsu’ and ‘Šampion’ was tested using an impact test to obtain bruising of fruits. The analyses were performed on fruits immediately after harvest and four times after different period of cold storage (9 and 18 weeks) and shelf-life (7 days). The following analysis and characteristics of apples were determined: soluble solids content, dry matter content, acidity, fruit mass and size, and firmness. Impact test was carried out by dropping a glass ball with a mass of 25.68 g from height of 40 cm, due to which kinetic energy value of 0.1 J was obtained. Slight differences in acidity and soluble solid content were observed. On the other hand, stress noticed at firmness test was significantly higher for fruits treated with 1-MCP. It was also observed that firmness decreases after the shelf-life and after storage of fruit at room temperature. The ‘Beni Shogun’ apples fruits stored for 9 weeks are most susceptible to bruising (volume = 438.26 mm3). After cold storage, less susceptible cultivar was ‘Szampion’, for which the volume of fruit bruise was 145.62 mm3 only. After 9 weeks of cold storage, for most cultivars, there was no significant differences in bruise volume; however, the shelf-life had significant influence by differing the cultivars, and for all studied cultivars, the bruise volume was lower.
    Źródło:
    Acta Scientiarum Polonorum. Hortorum Cultus; 2019, 18, 6; 129-140
    1644-0692
    Pojawia się w:
    Acta Scientiarum Polonorum. Hortorum Cultus
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zastosowanie przyspieszonych testów przechowalniczych do oceny trwałości suszu buraka, marchwi i bazylii
    The application of acceleratedshelf-life tests to assessment of storage life of dried beetroot, carrot and basil
    Autorzy:
    Tryzno, E.
    Sledz, M.
    Hankus, M.
    Krolikowski, K.
    Witrowa-Rajchert, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/807370.pdf
    Data publikacji:
    2013
    Wydawca:
    Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
    Tematy:
    barwniki
    zawartosc barwnikow
    degradacja
    susz z burakow
    susz z marchwi
    susz z bazylii
    przechowywanie
    testy przechowalnicze
    produkty spozywcze
    produkty suszone
    trwalosc
    testy ASLT
    plant pigment
    pigment content
    pigment degradation
    dried carrot
    dried basil
    storage
    storage test
    food product
    durability
    accelerated shelf-life test
    Opis:
    Celem pracy było zweryfi kowanie możliwości zastosowania przyspieszonych testów przechowalniczych do przewidywania trwałości suszonych produktów spożywczych. Suszoną bazylię, burak i marchew przechowywano w trzech wartościach temperatury: 25, 35 i 45°C. Czas przechowywania w temperaturze 35 i 45°C, odpowiadający przechowywaniu suszy w 25°C przez 12 tygodni, został wyliczony na podstawie literaturowych wartości energii aktywacji degradacji barwników. Weryfikację przeprowadzono, określając zmiany zawartości chlorofili, betalain, karotenoidów oraz zmianę nasycenia barwy podczas przechowywania suszy. Stwierdzono, że przyspieszone testy przechowalnicze można zastosować do przewidywania trwałości na podstawie zawartości barwników w przypadku suszu buraka i marchwi. Nie stwierdzono takiej możliwości w przypadku analizy zawartości chlorofi li w suszonej bazylii. Analiza zmiany nasycenia barwy umożliwia określenie trwałości bazylii, buraka i marchwi.
    The aim of this study was to verify time of storage, calculated on the basis of the energy activation of the pigments degradation, available in the scientific literature, to predict the storage life of dried products Dried basil, beetroot and carrot were storage at three levels of the temperature: 25, 35 and 45°C. The storage time at temperatures of 35 and 45°C, corresponding to the storage of dried products at 25°C for 12 weeks, was calculated based on the literature values of the energy activation of the pigments degradation. The verifi cation was carried out by determining changes in the content of chlorophylls, betalains, carotenoids, and the chroma colour changes during storage of dried products. It turned out that the accelerated storage tests can be used for shelf-life prediction based on the content of pigments in the dried beetroot and carrot, while in the case of changes of chlorophyll content in the dried basil the accelerated tests could not be used. Analysis of changes of chroma value allowed to determine the shelf-life of basil, beetroot and carrot.
    Źródło:
    Zeszyty Problemowe Postępów Nauk Rolniczych; 2013, 573
    0084-5477
    Pojawia się w:
    Zeszyty Problemowe Postępów Nauk Rolniczych
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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