Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę ""carotenoids"" wg kryterium: Temat

  Lista filtrów
Wyrównaj
Wyświetlanie 1-15 z 46
Tytuł:
Effect of protein hydrolysate-based biostimulants on chlorophyll content in wheat leaves
Wpływ biostymulatorów aminokwasowych na zawartość chlorofilu w liściach pszenicy
Autorzy:
Gendaszewska, Dorota
Pipiak, Paulina
Ławińska, Katarzyna
Stanca, Maria
Powiązania:
https://bibliotekanauki.pl/articles/27324235.pdf
Data publikacji:
2023
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Skórzanego
Tematy:
chlorophylls
carotenoids
spectrophotometric analysis
winter wheat
biostimulants
biostymulator
pszenica ozima
chlorofile
karotenoidy
analiza spektrofotometryczna
Opis:
This paper investigates the effect of foliar fertilisation with protein biostimulators on chlorophyll and carotenoid levels in winter wheat. The results obtained show a significant increase in photosynthetic pigments for samples II and III, which were plants treated with biostimulants containing collagen hydrolysate and sodium salicylate and collagen and keratin hydrolysate in combination with titanium ascorbate (Bio-2 and Bio-3, respectively). The study also confirmed that the extraction efficiency of chlorophyll and carotenoids depends on the type of solvent. The results obtained allow the conclusion to be drawn that the most favourable solvent for the extraction of photosynthetic pigments from wheat leaves is ethanol.
W artykule zbadano wpływ dolistnego nawożenia biostymulatorów białkowych na poziom chlorofilu i karotenoidów w pszenicy ozimej. Otrzymane wyniki wskazują na znaczący wzrost barwników fotosyntetycznych dla próbek II i III, które stanowiły rośliny traktowane biostymulatorami zawierającymi hydrolizat kolagenu i salicylan sodu oraz hydrolizat kolagenu i keratyny w połączeniu z askorbinianem tytanu (odpowiednio Bio-2 i Bio-3). W pracy potwierdzono również, że efektywność ekstrakcji chlorofilu i karotenoidów zależy od rodzaju rozpuszczalnika. Uzyskane wyniki pozwalają sformułować wniosek, iż najkorzystniejszym rozpuszczalnikiem do ekstrakcji barwników fotosyntetycznych z liści pszenicy jest etanol.
Źródło:
Technologia i Jakość Wyrobów; 2023, 68; 187--201
2299-7989
Pojawia się w:
Technologia i Jakość Wyrobów
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determination of astaxanthin and canthaxanthin in food products by HPLC method
Oznaczanie astaksantyny i kantaksantyny w produktach spożywczych metodą HPLC
Autorzy:
Krępska, Małgorzata
Sieczyńska, Katarzyna
Lasoń-Rydel, Magdalena
Powiązania:
https://bibliotekanauki.pl/articles/2175902.pdf
Data publikacji:
2022
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Skórzanego
Tematy:
natural dye
carotenoids
xanthophylls
HPLC
barwnik naturalny
karotenoidy
ksantofile
Opis:
Astaxanthin and canthaxanthin are carotenoids produced mainly by algae, fungi and bacteria. These dyes give the characteristic pink-orange color to salmon, shrimp and flamingo feathers. In the case of farm animals, astaxanthin and canthaxanthin are added to the feed, and their amount is strictly established and should not exceed certain limits. The article presents a method of determination of astaxanthin and canthaxanthin by HPLC method. This analysis determines whether these dyes are detected in the product and what their content are. This makes it possible to assess compliance with the limits and often also to determine the origin of the product.
Astaksantyna i kantaksantyna to karotenoidy wytwarzane głównie przez algi, grzyby i bakterie. Barwniki te nadają charakterystyczny różowo-pomarańczowy kolor piórom łososi, krewetek i flamingów. W przypadku zwierząt gospodarskich astaksantyna i kantaksantyna są dodawane do paszy, a ich ilość jest ściśle określona i nie powinna przekraczać określonych limitów. W artykule przedstawiono metodę oznaczania astaksantyny i kantaksantyny metodą HPLC. Ta analiza określa, czy barwniki te są wykrywane w produkcie i jaka jest ich zawartość. Pozwala to ocenić przestrzeganie limitów, a często także określić pochodzenie produktu.
Źródło:
Technologia i Jakość Wyrobów; 2022, 67; 106--116
2299-7989
Pojawia się w:
Technologia i Jakość Wyrobów
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Profile Physical and Phenolic-Chemical of Kumquat Influenced by the Environment Analyzed in Fresh
Autorzy:
Pérez, Soraya Mercedes
Powiązania:
https://bibliotekanauki.pl/articles/2027821.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
Fortunella margarita
carotenoids
kumquat
CIELab color
TPC
Opis:
Fortunella margarita is an excellent source of acids, sugars and phenolic compounds, the cultivation of which has become popular in Jordan in the last few years. The aim was to observe the quality of the kumquat fruits cultivated in Irbid and the Ghor Valley. Physical properties such as size, density, sphericity, porosity and color were measured. Total titrable acidity (TTA), total soluble solids (TSS), Ascorbic Acid (AA), pH and phenolic compounds were evaluated in the pulp-rind extract. Total phenols (TPC), flavonoids and carotenoids were measured by spectrophotometry at 765, 430 and 470–664 nm, respectively. High porosity (67%), fruit size (37.4 mm) and juice yield (25.5%) were achieved in the Ghor kumquat crop. The high levels of TPC (2039.2 mg GAE/100 g), AA (0.361 mg/ml) and carotenoids (1.15 mg/100 g) registered in this same crop, attribute it better functional and medicinal properties. Moreover, the Ghor cultivation presented better taste, associated with high values of pH (3.47), TSS (5%) and low levels of TTA (1.55%). The high concentration of total carotenoids recorded in the Ghor’s kumquat was associated with the intense and bright orange color of its rind, related with high values of the color coordinates + a, + b and L of the CIELab system. The great porosity of its rind, makes the kumquat a suitable fruit for impregnating with salt or sugar solutions as well as developing new kumquat products with better flavor and nutritional value. The ranges found in the properties of kumquat crops, are attributed to the different temperatures of Ghor and Irbid.
Źródło:
Journal of Ecological Engineering; 2022, 23, 2; 196-203
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The role of balanced supplementation in diet of age-related macular degeneration patients
Rola zbilansowanej suplementacji w diecie chorych ze zwyrodnieniem plamki związanym z wiekiem
Autorzy:
Kusz vel Sobczuk, Iwona
Święch, Anna
Powiązania:
https://bibliotekanauki.pl/articles/1927974.pdf
Data publikacji:
2021
Wydawca:
Medical Education
Tematy:
AMD
carotenoids
minerals
vitamins
Opis:
Aim: The aim of the article was to discuss the role of balanced supplementation in diet of age-related macular degeneration patients. Methods: This review was carried out using comprehensive and systematic literature reports on the role of supplementation of vitamin D, vitamin C, vitamin E, vitamin B6, vitamin B12, zinc, lutein, zeaxanthin, omega-3 acid and folic acid in the prevention of AMD. Results: Vitamins, minerals and carotenoids are essential for the proper retinal function over an inflammation and immune response modulation. Conclusions: Vitamins, minerals and carotenoids discussed in the article have anti-inflammatory and antioxidative properties in the management of AMD progression. Accordingly, it is relevant to assure the appropriate level of these nutrients in a diet of AMD patients.
Cel: Celem pracy było omówienie roli zbilansowanej suplementacji w diecie chorych ze zwyrodnieniem plamki związanym z wiekiem (AMD, age-related macular degeneration). Metody: Dokonano przeglądu piśmiennictwa z ostatnich lat dotyczącego roli witamin: D, C, E, B6, B12, cynku, luteiny, zeaksantyny, kwasu omega-3 oraz kwasu foliowego w prewencji AMD. Wyniki: Witaminy, składniki mineralne i karotenoidy są niezbędne do prawidłowego funkcjonowania siatkówki, ponieważ modulują odpowiedź zapalną i immunologiczną. Wnioski: Omówione w pracy witaminy, minerały oraz karotenoidy mają właściwości przeciwzapalne oraz przeciwutleniające, dzięki czemu zmniejszają ryzyko progresji AMD. W związku z powyższym należy zapewnić właściwe stężenie tych substancji w diecie pacjentów z AMD.
Źródło:
OphthaTherapy; 2021, 8, 1; 19-25
2353-7175
2543-9987
Pojawia się w:
OphthaTherapy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cadmium effects on growth and photosynthetic pigment content of Chaetoceros gracilis
Autorzy:
Ferdian, Ferdian
Hindarti, Dwi
Permana, Rega
Powiązania:
https://bibliotekanauki.pl/articles/1030841.pdf
Data publikacji:
2020
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Carotenoids
Cell density
Chaetoceros gracilis
Chlorophyll-a
Toxicity test
Opis:
Cadmium wastewater released by human activities will eventually enter the aquatic environment. Living organism that lives around could potentially exposed by these cadmium, including C. gracilis which play a critical role as a primary producer. Cadmium can reduce the growth rate and pigment content in C. gracilis. Therefore, toxicity testing becomes important to do considering that C. gracilis has many benefits such as shrimp feed and have active compounds for antibacterial and biodiesel. Toxicity test was performed in 96-hours with a series of concentration 0, 0.56, 1.0, 1.8, 3.2, 5.6 mg/L. IC50 cadmium results in concentrated cell density and chlorophyll-a C. gracilis were 1.62 mg/L and 3.4 mg/L, while carotenoids were not in accordance with the contribution of cadmium. NOEC and cadmium LOEC to C. gracilis cell density were 0.56 mg/L and 1.0 mg/L.
Źródło:
World Scientific News; 2020, 145; 245-255
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparative quantitative study on phytochemical contents of hops (Humulus lupulus L.)
Chmiel (Humulus lupulus l.) jako surowiec o właściwościach prozdrowotnych - zawartość fitozwiązków w wybranych odmianach chmielu
Autorzy:
Telichowska, Aleksandra
Kobus-Cisowska, Joanna
Stachowiak, Barbara
Byczkiewicz, Szymon
Zawadzka, Agnieszka
Szulc, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/1685740.pdf
Data publikacji:
2020-12-30
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Maszyn Rolniczych
Tematy:
hops
hop cones
bioactive compounds
polyphenolic acids
chlorophyll
carotenoids
proanthocyanidis
chmiel
szyszki chmielowe
związki bioaktywne
polifenolokwasy
chlorofil
karotenoidy
proantocyjanidyny
Opis:
Hop cones (Humulus lupulus L.) are mainly used as the main flavoring ingredient in beer production. Cones contain ac-tive compounds that determine not only the aromatic characteristic, but also functional properties. The aim of this study was to determine the basic anatomical characteristics of hops of the following varieties: Marynka, Lubelski, Magnum, and the assessment of the content of selected phytochemicals in water extracts. The different level of the content of chlorophyll depending on the cultivar studied was shown. The cones of the Marynka variety (0.49 mg/g) had the highest content of to-tal chlorophylls. All tested hop cone extracts showed a similar content of carotenoid pigments. The highest amount of pol-yphenolic acids was found in extracts prepared from the Lubelski variety cones (5.22 mg chlorogenic acid/g), and the lowest in the cones of Marynka variety (3.36 mg chlorogenic acid/g). Based on the research, it was shown that hop cones can be a good raw material for the production of water extracts due to the high content of biologically active compounds. Hop cones can be a raw material for the production of functional food.
Szyszki chmielowe (Humulus lupulus L.) wykorzystywane są głównie jako podstawowy składnik aromatyzujący w produkcji piwa. Zawierają one bowiem związki aktywne, które decydują nie tylko o walorach organoleptycznych, ale także o właściwościach prozdrowotnych. Celem niniejszej pracy była podstawowa charakterystyka towaroznawcza szyszek chmielu odmian Marynka, Lubelski i Magnum, a także ocena zawartości wybranych fitozwiązków w wodnych ekstraktach z szyszek. Wykazano zróżnicowanie zawartości chlorofilu w zależności od badanej odmiany. Najwyższą zawartością sumy chlorofili charakteryzowały się ekstrakty z szyszek odmiany Marynka (0,49 mg/g). Wszystkie badane ekstrakty z szyszek chmielowych wykazały podobną zawartość barwników karotenoidowych. Polifenolokwasy w największej ilości znajdowały się w ekstraktach sporządzonych z szyszek odmiany Lubelski (5,22 mg kwasu chlorogenowego/g), a w najmniejszej w szyszkach odmiany Marynka (3,36 mg kwasu chlorogenowego/g). Na podstawie wykonanych badań wykazano, że szyszki chmielu mogą stanowić dobry surowiec do wytwarzania ekstraktów wodnych z uwagi na wysoką zawartość związków bio-logicznie aktywnych. Szyszki chmielu mogą stanowić również surowiec do produkcji żywności funkcjonalnej.
Źródło:
Journal of Research and Applications in Agricultural Engineering; 2020, 65, 2; 18-23
1642-686X
2719-423X
Pojawia się w:
Journal of Research and Applications in Agricultural Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Nutrition assessment of patients with AMD
Autorzy:
Paradowska, Daria
Kucharska, Elżbieta
Powiązania:
https://bibliotekanauki.pl/articles/1030688.pdf
Data publikacji:
2020
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
AMD
EFAs
age-related macular degeneration
bioelements
carotenoids
vitamins
Opis:
The aim of the study was to assess the nutritional habits of AMD patients from the Szczecin region. Age-related macular degeneration (AMD) is a chronic, progressive eye disease that results in loss of central vision. The study was conducted in the Ophthalmology Clinic of the Independent Public Teaching Hospital No. 2, Pomeranian Medical University (PUM) in Szczecin among 46 subjects. The interview method was used using the author's questionnaire, which contained questions about age, body weight and height, sex, composition of the three-day menu and the form of AMD. Insufficient intake of numerous nutrients (with lutein and zeaxanthin among them) has been shown, which may accelerate the progression of the disease. In addition, patients were underweight, which may increase the risk of protein-energy malnutrition that may affect the development of AMD.
Źródło:
World Scientific News; 2020, 139, 2; 221-232
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sedymentologiczna i geochemiczna charakterystyka dolnych warstw krośnieńskich fałdu Gorlic i łuski Stróż (jednostka śląska, Karpaty zewnętrzne)
Sedimentological and geochemical characteristics of the Lower Krosno Beds from the Gorlice fold and the Stróże Thrust Sheet (Silesian Unit, Polish Outer Carpathians)
Autorzy:
Drozd, Arkadiusz
Bieleń, Wojciech
Powiązania:
https://bibliotekanauki.pl/articles/1833981.pdf
Data publikacji:
2020
Wydawca:
Instytut Nafty i Gazu - Państwowy Instytut Badawczy
Tematy:
fałd Gorlic
łuska Stróż
warstwy krośnieńskie
facje
karotenoidy
arylowe izoprenoidy
izorenieratan
paleorenieratan
fotyczna strefa anoksyczna
Gorlice fold
Stróże Thrust Sheet
Krosno Beds
facies
carotenoids
aryl isoprenoids
isorenieratane
paleorenieratane
photic zone anoxia
Opis:
The main goal of this paper is to present the sedimentological and geochemical character of Krosno Beds from the Gorlice fold and the Stróże Thrust Sheet. Based on field work, two measured sections were made: western Stróże with true thickness of 300 m and eastern Lipinki with true thickness of 227 m. Within them, six sedimentary facies described in the Gorlice profile were identified and three newly recognized facies were distinguished. These facies have been interpreted in the framework of depositional mechanisms. Sedimentary structures were identified and described, including those important for reconstruct the sedimentation environment: hummocky-cross stratification (HCS) and trough cross stratification. Another element of the analysis is compilation of the measured field sections and their correlation with well logs from the Gorlice-12 and L-OU1 wells. The correlation enabled to show similarities of lithological development within the Gorlice fold and differences in relation to the Stróże Thrust Sheet profile. Eight samples of mudstone (Stróże profile 3 samples: S5–S7, Lipinki profile 5 samples: L3–L8) were collected and subjected to geochemical biomarkers analysis. The aim of the biomarkers study was to specify the character of the sedimentation environment and to confirm the biological/bacterial origin of compounds from the aryl isoprenoids group. Fifteen samples of bitumen extracts derived from two sections: Stróże in the Biała riverbed in the western part and Lipinka in the Libuszanka stream bed in the eastern part were selected for sample collection and testing. Aryl isoprenoids (short and medium chain) and higher diaryl isoprenoids have been identified. In addition, higher aromatic C40 carotenoids have been identified such as: isorenieratane, β-paleorenieratane, β-isorenieratane, β-renierapurpurane, chlorobactane and okenane. These are considered as a further evidence of the bacterial origin of aryl isoprenoids. The indices specifying the sedimentation environment were calculated: AIR, and isorenieratan/phenanthrene index. Samples were tested for: the character of the sedimentary environment, including photic zone anoxia (PZA) and its duration, depth of chemocline and bacterial activity during sedimentation. The results of the samples analysis used in this work were compared with the archival results of samples analysis (the Gorlice fold area).
Źródło:
Nafta-Gaz; 2020, 76, 12; 877--894
0867-8871
Pojawia się w:
Nafta-Gaz
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Effect of Addition of Butterfly Pea Leaf Meal (Clitoria ternatea) in Feed on the Quality of Color of Swordtail Fish Head (Xiphophorus helleri)
Autorzy:
Rintan, Octaviana Julia
Yuli, Andriani
Lintang, P. S. Yuliadi
Iskandar, Iskandar
Powiązania:
https://bibliotekanauki.pl/articles/1076656.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Butterfly pea
Carotenoids
Clitoria ternatea
Color quality
Feed
Swordtail fish
Xiphophorus helleri
Opis:
The aim of this study was to determine the effect of butterfly pea leaf as a source of carotenoids on the quality of the color of the heads of swordtail fish. The study was conducted at the Aquaculture Laboratory, Building 4, Faculty of Fisheries and Marine Sciences, Padjadjaran University, from March to April 2019. The research method used an experimental approach with Completely Randomized Design (CRD) consisting of 4 treatments and 3 replications. Those treatments are 0%, 1%, 6% and 12% of butterfly pea leaf meal. The parameters observed included changes in head color quality, absolute weight growth, absolute length growth and water quality. Color observation data were analyzed using Kruskal-Wallis analysis if there were differences between treatments. Multiple comparisons were performed with the Z test with a confidence level of 95%. Data on the length of growth rates and absolute weights were analyzed using analysis of variance via the F test. Here, 95% was set as the confidence level. If there were differences between treatments, this was followed by Duncan test with a confidence level of 95%. The results showed that the addition of 6% butterfly pea leaf meal in commercial feed was able to improve the best color on the part of the swordtail fish head. This saw an average color score 9.56 and color value of 82.2. Addition of carotenoids in feed, however, did not significantly influence the growth of absolute weight or length and water quality.
Źródło:
World News of Natural Sciences; 2019, 26; 128-137
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Antioxidant potential and phytochemical content of selected fruits and vegetables consumed in Cyprus
Autorzy:
Georgiadou, E. C.
Goulas, V.
Majak, I.
Ioannou, A.
Leszczyńska, J.
Fotopoulos, V.
Powiązania:
https://bibliotekanauki.pl/articles/410477.pdf
Data publikacji:
2018
Wydawca:
Politechnika Łódzka. Wydawnictwo Politechniki Łódzkiej
Tematy:
phenolic compounds
anthocyanins
ascorbic acid
carotenoids
antioxidant capacity
horticultural products
związki fenolowe
antocyjan
kwas askorbinowy
karotenoidy
zdolność antyoksydacyjna
produkty ogrodnicze
Opis:
Consuming a diet high in fruits and vegetables can lower the risk of developing numerous chronic diseases, including cancer and cardiovascular disease, due to the presence of multiple antioxidants. Horticultural produce consumed in Cyprus include a large variety of fruits and vegetables, most of which are common components of a Mediterranean-style diet due to the island’s localization. The aim of the present study was to evaluate the antioxidant composition and activity of the edible portion of ten fruits and ten vegetables commonly consumed in Cyprus. Total phenolics, total anthocyanins, ascorbic acid and carotenoids contents were determined, while the in vitro antioxidant activity was evaluated by three assays. Antioxidant activity showed great variation, with the highest values found in green olives, capers and red chili peppers and in correlation with total phenolic content. Ascorbic acid was detected in large quantities in parsley, coriander, red guavas and red chili peppers, while red chili peppers, capers and coriander had high levels of carotenoids. Furthermore, sweet cherries, red grapes, and red apples contained significant amounts of anthocyanins. Statistical analysis revealed that phenolic compounds are the most potent antioxidants in fruit and vegetables, while total anthocyanins had a weak contribution to their antioxidant activity. The present study could be a guide for Cypriot as well as Mediterranean diet health-conscious consumers to select specific fruits and vegetables as dietary components. To the best of our knowledge, this is the first study thoroughly describing the antioxidant composition and activity of a wide array of important Cypriot horticultural products.
Źródło:
Biotechnology and Food Science; 2018, 82, 1; 3-14
2084-0136
2299-6818
Pojawia się w:
Biotechnology and Food Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Studies on stability of emulsions containing carotenoids
Autorzy:
Igielska-Kalwat, Joanna
Powiązania:
https://bibliotekanauki.pl/articles/1038379.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
carotenoids
particle size
semisolid formulations
stability studies
Opis:
Emulsions are commonly used to improve aesthetics but they may also be applied to deliver active ingredients. Recently, a group of pigments known as carotenoids has been added to emulsions as an active compound mainly due to their antioxidant properties. The stability of these formulations is a critical parameter for both, pharmaceutical and cosmetics industry. Therefore, in this study two analytical methods, multiple light scattering and laser diffraction, were tested to determine the stability of various emulsions containing carotenoids (β-carotene, lycopene, astaxanthin). Even small changes in stability of emulsions were determined very early. The results of both methods proved that the type of carotenoid used did not influence the emulsions' stability. The stability of emulsions depends mainly on the preparation methods and on the type of emulsifier applied.
Źródło:
Acta Biochimica Polonica; 2018, 65, 3; 455-463
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The influence of selected active substances on the functioning of the visual system
Autorzy:
Kmiecik, Katarzyna
Dziembowska, Inga
Powiązania:
https://bibliotekanauki.pl/articles/1177989.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
antioxidants
bioflavonoids
carotenoids
microelements
sight
vitamins
Opis:
Age-related macular degeneration (AMD), glaucoma and cataracts are the most common eye diseases. They are predominantly caused by insufficient amounts of antioxidants in the body, which include lutein, zeaxanthin, lycopene, omega-3 fatty acids, vitamins and micronutrients. The positive properties of these biologically active substances affect the neutralization of reactive oxygen species, slow absorption of UV radiation, and improve blood supply to the structural elements of the eye. Deficiency of these substances has a negative effect on the functioning of the eye, leading to degeneration of its structures. Presently, a fully effective method of treatment has not been discovered, therefore preventative measures, especially those including a healthy diet and lifestyle, are highly important as the human body cannot synthesize these beneficial substances. This requires increasing public awareness concerning products with high nutritional value, which should be included in people's daily diet.
Źródło:
World Scientific News; 2018, 96; 108-119
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparative evaluation of the nutritional value and the content of bioactive compounds in the fruit of individual species of chaenomeles and quince
Autorzy:
Ponder, Alicja
Hallmann, Ewelina
Powiązania:
https://bibliotekanauki.pl/articles/1178431.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
bioactive compounds
carotenoids
chaenomeles
chlorophyll
dry matter
nutritional value
polyphenols
quince
vitamin C
Opis:
The objective of this study was to evaluate the nutritional value and the content of bioactive compounds in the fruit of individual species of chaenomeles and quince. The experimental material were the fruits of four species of chaenomeles (Chaenomeles×superba, Chaenomeles japonica apple-shape, Chaenomeles japonica pear-shape and Chaenomeles ssp.) and quince (Cydonia oblonga). The fruit were analyzed for dry matter, vitamin C, polyphenols, carotenoids and chlorophyll content. The obtained results showed that the species has an impact on the nutritional value and the content of bioactive compounds in the chaenomeles and quince fruits. The highest content of dry matter, total polyphenols, total phenolic acids as well as more total and individual phenolic acids (caffeic and p-coumaric acid) were found in quince fruits (Cydonia oblonga). Quince fruits Cydonia oblonga also contained the highest content of total flavonoids and individual flavonoids: quercetin-3-O-rutinoside, myrycetin and quercetin. The highest content of lutein and zeaxanthin was observed in fruits of Chaenomeles ×superba but Cydonia oblonga fruits contained significantly more beta-carotene and chlorophyll, both the total chlorophylls and individual chlorophylls: chlorophyll a and chlorophyll b. In contrast, the highest content of vitamin C was found in fruits Chaenomeles Japanese pear-shape.
Źródło:
World Scientific News; 2017, 73; 100-107
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of propaquizafop treatment on pigments content and growth of sweet maize seedlings
Wpływ traktowania propachizafopem na zawartość barwników i wzrost siewek kukurydzy cukrowej
Autorzy:
Rusjan, Anna
Dębski, Henryk
Koczkodaj, Danuta
Mitrus, Joanna
Horbowicz, Marcin
Powiązania:
https://bibliotekanauki.pl/articles/2223281.pdf
Data publikacji:
2017
Wydawca:
Politechnika Bydgoska im. Jana i Jędrzeja Śniadeckich. Wydawnictwo PB
Tematy:
anthocyanins
carotenoids
chlorophyll
herbicide
mode of use
antocyjany
chlorofil
herbicyd
karotenoidy
metoda stosowania
Opis:
Background. We examined the response of sweet maize seedlings (Zea mays var. saccharata L., cv. Złota Karłowa), as a non-target plant, to various doses of propaquizafop ((R)-2-[4-[(6-chloro-2-quinoxalinyl)oxy] phenoxy]-propionic acid 2-[[(1-methylethylidene)amino]oxy]ethyl ester) applied to the root zone or on shoots. Material and methods. The herbicide at concentrations of 0.56; 5.63 or 56.3 μM was used in a study on seedlings grown in hydroponic cultures in controlled light and temperature conditions. In the experiment the roots of maize seedlings were exposed to propaquizafop for 7 days. Also, seedling shoots were exposed by their immersing for 30 seconds in the investigated propaquizafop concentrations. We assessed the impact of propaquizafop on the seedlings elongation of primary roots and shoots. The content of anthocyanins in epicotyls and photosynthetic pigments (chlorophyll a, chlorophyll b, total carotenoids) in leaves were also measured. Results. A weaker effect on shoot growth was found when the roots of sweet maize seedlings were exposed to propaquizafop than was the case in the application of the herbicide to shoot. Application of the herbicide to the root zone also had little effect on the levels of chlorophylls and carotenoids, or on the ratios between them, in the leaves. The presumed responsibility for this effect is a weak uptake of the herbicide by the roots and / or its transport to the leaves of the maize seedlings. Conclusion. Propaquizafop has a smaller effect on sweet maize seedlings when applied to the root zone than it has after foliar exposition. A decline of anthocyanin content under the influence of low doses of propaquizafop suggests that it has a greater effect on the metabolism of phenylpropanoids than other inhibitors of acetyl coenzyme A carboxylase have.
Badano reakcję siewek kukurydzy cukrowej (Zea mays var. Saccharata L., Złota Karłowa), jako rośliny niebędącej celem zwalczania, na różne dawki propachizafopu zastosowanego do strefy korzeniowej lub na pędy. Herbicyd stosowano w stężeniach 0,56; 5,63 lub 56,3 μM, na siewki rosnące hydroponicznie w kontrolowanych warunkach światła i temperatury. W eksperymentach siewki kukurydzy eksponowano na propaquizafop przez 7 dni. Aby ocenić wpływ propaquizafopu na siewki, mierzono wydłużenie korzenia głównego i pędu, a także zawartości antocyjanów w epikotylach i barwników fotosyntetycznych (chlorofile, karotenoidy) w liściach. Propaquizafop stosowany do strefy korzeniowej (pożywka) wywierał słabszy wpływ na wzrost pędów kukurydzy i niewielki wpływ na poziom chlorofilu i karotenoidów w liściach siewek kukurydzy niż zastosowany dolistnie. Efekty te są prawdopodobnie spowodowane niewielkim poborem przez korzenie i/lub translokacją herbicydu w siewce kukurydzy. Spadek zawartości antocyjanów pod wpływem małych dawek propaquizafopu sugeruje, że ma on większy wpływ na metabolizm fenylopropanoidów niż inne inhibitory karboksylazy acetylokoenzymu A.
Źródło:
Acta Scientiarum Polonorum. Agricultura; 2017, 16, 4; 227-234
1644-0625
Pojawia się w:
Acta Scientiarum Polonorum. Agricultura
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of Potato Cultivars and Breeding Lines for Carotenoids Content in Tubers
Autorzy:
Milczarek, Dorota
Tatarowska, Beata
Powiązania:
https://bibliotekanauki.pl/articles/2199678.pdf
Data publikacji:
2017-06-20
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
analysis
extraction
lutein
total carotenoids (TC)
zeaxanthin
Opis:
The potato is one of the most common elements of everyday human diet due to its high nutritional and culinary value. Potato tubers provide mainly energy in the form of carbohydrates and also some other nu-trients, which include carotenoids as compounds linked to oxidation-preventing mechanisms. The main assi-milable carotenoids present in cultivated potato are lutein and zeaxanthin. Potato cultivars rich in carotenoids are a subject of increasing consideration in breeding for improvement of the nutritional quality of tubers. The paper describes the spectrophotometric method of evaluation of total and individual carotenoids content in potato tubers.
Źródło:
Plant Breeding and Seed Science; 2017, 75; 11-16
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 46

Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies