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Tytuł:
Effect of pH and soil environment
Autorzy:
Draszawka-Bołzan, Beata
Powiązania:
https://bibliotekanauki.pl/articles/1118852.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
pH
soil environment
Opis:
The pH dependence of adsorption reactions of cationic metals is due, in part, to the preferential adsorption of the hydrolyzed metal species, in comparison to the free metal ion (McBride, 1977; McLauren and Crawford, 1973; Davis and Leckie, 1978; Farrah and Pickering, 1976a,b; James and Healy, 1972; McBride, 1982; Cavallaro and McBride, 1980; Harter, 1983). The pH of the soil system is a very important parameter that directly influences sorption/desorption, precipitation/ dissolution, complex formation, and oxidation-reduction reactions. In general, maximum retention of cationic metals occurs at pH>7 and maximum retention of anionic metals occurs at pH<7. However, because of the complexity of the soil-waste system, with its myriad of surface types and solution composition, such a generalization may not hold true. For example, cationic metal mobility has been observed to increase with increasing pH due to the formation of metal complexes with dissolved organic matter.
Źródło:
World News of Natural Sciences; 2017, 8; 50-60
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Storage and its Effect on Chemical Quality Indicators in Sachet Water Brands Sold in Owerri Municipal, Imo State, Nigeria
Autorzy:
Duru, Chidi Edbert
Amadi, Uzoamaka Sandra
Enyoh, Christian Ebere
Powiązania:
https://bibliotekanauki.pl/articles/1113927.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Dissolved oxygen
Nitrate
Phosphate
Sachet water
Water quality
pH
Opis:
This study investigated the effect of storage on certain sachet water quality indicators over a twelve-week period. Three brands of sachet water were collected within 24 h of production and analyzed for pH, nitrate, phosphate and dissolved oxygen. These were then placed in normal storage. According to out results, pH values increased significantly in all brands after week 8. Moreover, nitrate and dissolved oxygen values decreased throughout the investigation period, while phosphate values increased in all brands tested. All tested brands showed various degree of variation over the period of study. Still, all brands analyzed were within permissible limit by World Health Organization (WHO) stipulations. However, continuous storage can significantly alter the chemical quality indicators to a level that exceeds the limit set by WHO; hence, becoming harmful to human health. Therefore, it is recommended that sachet water should not be stored for more than 12 weeks from the date of production.
Źródło:
World News of Natural Sciences; 2017, 12; 73-81
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Excessive Use of Chemical Fertilizers & Dynamic Soil pH on Agricultural Land: The GIS-Based Inverse Distance Weighting (IDW)
Autorzy:
Jisna, M. Fathima
Nuskiya, M. H. F.
Iyoob, A. L.
Powiązania:
https://bibliotekanauki.pl/articles/1839852.pdf
Data publikacji:
2021
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
chemical Fertilizer
excessive use
agricultural land
soil pH
productivity
Opis:
Chemical fertilizer use is highly increasing in farming activity, and the process has a significant impact on soil quality and pH which is the measurement of the acidity or alkalinity. Therefore, soil pH is the main variable because it regulates plant nutrition availability by controlling the chemical forms of various nutrients in agricultural activity. This research aims to find out the excessive use of chemical fertilizers & dynamic soil pH on agricultural land. The primary data had collected by using questionnaires, interviews, Focus Group Discussion (FGD) and soil testing. For the soil testing experiment, simple random sampling method was used to collect the sample in 11 agricultural continents using GPS technology to identify the land location and 22 soil samples were collected based on pre and post applied chemical fertilizer stage. In order to pH value were tested from the collected soil samples. Accordingly, the data were analyzed by ArcGIS 10.3 using the IDW technique. Therefore, the results find out the condition of soil quality during the pre-chemical fertilization, 9% of the land found to be slightly acidic, 27% of the land with neutral soil structure and 15% of the land with salinity soil structure. During the post-chemical fertilization, 9% of the land was found to be moderately acidic, 41% of the soil was found to be strongly acidic, 32% of the soil highly acidic and 18% of the land be moderately pH. The result of the study shown, chemical fertilizers use highly impact on soil quality and agricultural land productivity.
Źródło:
World News of Natural Sciences; 2021, 39; 113-129
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development and validation of dissolution method for levocetirizine dihydrochloride by isocratic reverse phase HPLC
Autorzy:
Thirunarayanan, G.
Manikandan, S.
Powiązania:
https://bibliotekanauki.pl/articles/1194036.pdf
Data publikacji:
2015
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Accuracy
Buffer
Levocetirizine hydrochloride
Precision
Reverse Phase HPLC
Ruggedness
pH
Opis:
Levocetirizine hydrochloride is an orally active, non-sedative antihistamine used in the symptomatic relief of seasonal and perennial allergic rhinitis. The main objective of the proposed study is to develop and validate a dissolution method of Levocetirizine hydrochloride dosage form by reverse phase HPLC isocratic method. The method is optimized by various filteration methods such as centrifuge and whatman 42. The filteration methods are evaluated by reverse phase isocratic HPLC method using column- Phenomenex Luna - C 18 (250 mm x 4.6 mm; 5 µ), mobile phase – mixture of buffer and acetonitrile (580:420), adjusted pH to 6.0 with 10 % sodium hydroxide. buffer - 4.08 g Potassium dihydrogen orthophosphate in 600 mL of water. The flow rate is 1.0 mL/min and the elutant is monitored at 230 nm with UV detector. The retention time of levocetirizine hydrochloride is 5.5. Precision shows that % relative standard deviation is about 1.1%. The percentage recovery of the levocetirizine from the dosage formulation is 99.6%. The results obtained for robustness and ruggedness of levocetirizine hydrochloride are well within the acceptance criteria. The proposed method is found to be simple, rapid, accurate and precise. The proposed methods are validated as per ICH guidelines and successfully applied for the determination of Levocetirizine tablet.
Źródło:
World Scientific News; 2015, 11; 1-17
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of precipitation on the acidification of soils of West Pomeranian Voivodeship
Autorzy:
Daniszewski, P.
Draszawka-Bołzan, B.
Powiązania:
https://bibliotekanauki.pl/articles/411961.pdf
Data publikacji:
2013
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
wet fallout
atmospheric pollutants
pH
concentration of chemical components
soil
Opis:
The progress of civilization as well as the growing up process of transformative environment adversely affect individual environmental elements in the soil. In recent years the increasing pollution of the atmosphere causes more and more interest in the science of the substances contained in it and merge back to the surface of the Earth. Of great importance for the environment have the substances contained in the water drainage, as in the form of dissolved very easily reach the individual environmental elements causing their contamination. Strong acidification most soils in Poland is the main cause of weak download main nutrients in soils, and low yields. Part of important plant micronutrients: iron, copper, zinc, manganese, cobalt/an acidic soils are more available In soils acidic phosphorus being introduced in mineral fertilisers is associated with aluminum and iron, in forms not available for plants. The low pH of the soil inhibits the oxidation of ammonium nitrogen (NH4 +) to nitrate (NO3 -), and at the same time, poorly developed root system is not able to efficiently downloadion nitrate from the soil. The result is outside the range of the washing of nitrate nitro gen contamination of groundwater and is followed by the root system. The purpose of the work was to determine the pH of precipitation and atmospheric.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2013, 1; 85-95
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Characteristics of the physical and chemical parameters of water in pools of port in Szczecin in 2009
Autorzy:
Cyraniak, E.
Daniszewski, P.
Draszawka-Bołzan, B.
Powiązania:
https://bibliotekanauki.pl/articles/411965.pdf
Data publikacji:
2013
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
swimming pools port
natural water quality
pH
BOD5
COD-Cr
Opis:
The aim of this work was to be traced during the summer and autumn of 2009 the level and dynamics of changes in the waters of the Port of Szczecin General docks parameters water quality. In the work of the General indicators of water temperature, were numbered: pH, BOD5, COD-Cr, Cl-. All the markings and the calculation was performed according to the methods recommended by Polish Standards, applying analytical procedures described in by Dojlido, Elbanowska, Hermanowicz. Port of Szczecin is located on the Oder river and its right shoulder Regalicy. Is located in the western part of the port of Szczecin, in the northern part of the Valley of the lower Oder river on May. The port consists of water bodies which are branches of the Oder river and the channels: Mielenski, Grabowski, Dunczyca Channel Figh, Wroclaw, Parnica, Channel Channel Debicki and Lake Dabie. Trying is water were collected by PN/C-04632.03 with a depth of about. 2 m below the water surface. The temperature at the place of sampling were numbered, pH. Collected water samples were fixed In accordance with the recommendations in the Polish Standard-PN/C-04632.04. Other indicators for the quality of the waters have been tagged within 24 hours from the moment of download attempts. The quality objectives was evaluated according to the criteria recommended to evaluate inland surface waters referred to in regulation of the Minister of the environment of 11 February 2004 on the classification for the present status of surface water and groundwater, how to conduct monitoring and how to interpret the results and presentation of these waters. Due to the exposure of the docks the port Szczecin on the pollution associated with cross-what are the cereals, ores, oil, cellulose, carbon, iron, general research evaluation of the water quality of these pools, you can assess the status of water In order to keep these waters.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2013, 1; 70-77
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Charakterystyka wybranych parametrów jakości wód w basenach portowych w Szczecinie
Characteristics of selected quality parameters of the swimming pools port in Szczecin
Autorzy:
Cyraniak, E.
Daniszewski, P.
Draszawka-Bołzan, B.
Powiązania:
https://bibliotekanauki.pl/articles/411870.pdf
Data publikacji:
2012
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
basen portowy
jakość wód
temperatura
pH
NO3¯
PO4 ³ ¯
Pog.
swimming pools port
natural water quality
temperature pH
NO3-
PO4 3-
Ptot.
Opis:
Celem niniejszej pracy było prześledzenie w okresie od 2004 do 2008 roku poziomu oraz dynamiki zmian w wodach basenów portowych Portu Szczecin parametrów ogólnych jakości wód. W pracy oznaczano wskaźniki ogólne wody: temperaturę, pH, NO3 -, PO4 3-, Pog.. Wszystkie oznaczenia i obliczenia wykonywano według metod zalecanych przez Polskie Normy, stosując procedury analityczne opisane m.in. przez Dojlido, Elbanowska, Hermanowicza. Port Szczecin jest usytuowany na Odrze i jej prawym ramieniu Regalicy. Położony jest w zachodniej części Pobrzeża Szczecińskiego, w północnej części Doliny Dolnej Odry na Międzyodrzu. W skład portu wchodzą akweny będące odgałęzieniami Odry i kanałami: Przekop Mieleński, Kanał Grabowski, Duńczyca, Kanał Wrocławski, Parnica, Kanał Dębicki oraz jezioro Dąbie. Próby wody do badan pobierano według PN/C-04632.03 z głębokości ok. 0,5 m poniżej lustra wody. W miejscu poboru prób oznaczano temperaturę, pH. Pobrane próbki wody zostały utrwalane zgodnie z zaleceniami zawartymi w Polskiej Normie - PN/C-04632.04. Pozostałe wskaźniki określające jakość wód zostały oznaczone w przeciągu 24 godzin od momentu pobrania prób. Poszczególne wskaźników jakości wód oceniano według kryteriów zalecanych do oceniania śródlądowych wód powierzchniowych określonych w Rozporządzeniu Ministra Środowiska z dnia 11 lutego 2004 r. w sprawie klasyfikacji dla prezentowania stanu wód powierzchniowych i podziemnych, sposobu prowadzenia monitoringu oraz sposobu interpretacji wyników i prezentacji stanu tych wód. Z uwagi na narażenie basenów portowych Portu Szczecin na zanieczyszczenia związane z przeładunkami jakie odbywają sie na jego terenie zboża, rud, olejów, celulozy, drobnicy węgla, żelaza, należy prowadzić badania oceny jakości wód tych basenów, aby można na bieżąco ocenić stan wód tych akwenów.
To estimate differentiation of water chemistry in reservoirs of swimming pools port In Szczecin, in time of 2004 - 2008. In arbitrary appointed times 5 physical and chemical indicators of water quality were determined to evaluate general status and water condition - temperature, pH, NO3 -, PO4 3-, Ptot.. Port of Szczecin is located on the Oder River and its right shoulder Regalicy. Is located In the western part of the port of Szczecin, in the northern part of the Valley of the lower Oder river on May. The port consists of water bodies which are branches of the Oder river and the channels: Mielenski, Grabowski, Dunczyca Channel Figh, Wroclaw, Parnica, Channel Channel Debicki and Lake Dabie. Trying to test water were collected by PN/C-04632.03 with a depth of about. 0.5 m below the water surface. The temperature at the place of sampling were numbered, pH. Collected water samples were fixed in accordance with the recommendations in the Polish Standard-PN/C-04632.04. Other indicators for the quality of the waters have been tagged within 24 hours from the moment of download attempts. The quality objectives was evaluated according to the criteria recommended to evaluate inland surface waters referred to in regulation of the Minister of the environment of 11 February 2004 on the classification for the present status of surface water and groundwater, how to conduct monitoring and how to interpret the results and presentation of these waters. Due to the exposure of the docks the port Szczecin on the pollution associated with cross-what are the cereals, ores, oil, cellulose, carbon, iron, general research evaluation of the water quality of these pools, you can assess the status of water in order to keep these waters.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2012, 5; 96-103
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A novel study of pH influence on Ag nanoparticles size with antibacterial and antifungal activity using green synthesis
Autorzy:
Wisam, J. Aziz
Haneen, A. Jassim
Powiązania:
https://bibliotekanauki.pl/articles/1177924.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
AgNPs
Green synthesis
Hydrothermal
Silver nanoparticles
Zingiber Officinale (Ginger)
pH effect
Opis:
In this paper, the effect of pH on nanoparticles (AgNPs) using plants extracting has been investigated. The aqueous sol of AgNPs prepared at different pH values using hydrothermal method display different Surface Plasmon Resonance (SPR) behavior and the maximum absorption values were at pH = 14. AgNPs were characterized using X-Ray diffraction, UV-Vis spectroscopy and scanning electron microscope. Face-center cubic Ag nanoparticles with crystal size about 3.86 nm have been noticed. The absorption band showed that Ag has sharp curves in the ultraviolet and at the edge of the visible region. The SEM images showed cluster shaped nanoparticles, and when increasing the pH values, the result revealed the formation of larger nanoparticles cluster with more accurate crystallite sizes. The antimicrobial and antifungal activity was performed by Agar well diffusion assay against Escherichia coli, Bacillus subtilis and Candida albicans. The diameter of the inhibition zones of Ag NPs against the bacterial strains such as, Bacillus subtilis (31 mm) and Escherichia coli (30 mm) at 200 µg/ml concentration and the diameter of the inhibition zones of Ag NPs against the fungus strains such as, Candida albicans (36 mm) at the same concentration.
Źródło:
World Scientific News; 2018, 97; 139-152
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Characteristics of the physical and chemical parameters of water in pools of port in Swinoujscie in 2009
Autorzy:
Cyraniak, E.
Daniszewski, P.
Draszawka-Bołzan, B.
Powiązania:
https://bibliotekanauki.pl/articles/411959.pdf
Data publikacji:
2013
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
swimming pools port
natural water quality
pH
BOD5
COD-Cr
Opis:
The aim of this work was to be traced during the summer and autumn of 2009 the level and dynamics of changes in the waters of the port the port Swinoujscie general parameters pools water quality. In the work of the General indicators of water temperature, were numbered: pH, BOD5, CODCr, Cl-. All the markings and the calculation was performed according to the methods recommended by Polish Standards, applying analytical procedures described in. by Dojlido, Elbanowska, Hermanowicz. Port of Swinoujscie is a sea port located on the Gulf of Pomorska, on the southern coast of the Baltic Sea, on the islands of Usedom and Wolin. The Port is located at the Swina, In Swinoujscie, West Pomeranian Voivodeship. The port can be placed on ships with a maximum length of 42.0 m and width 260,0 m, draught 12.8 m. The tides in the Harbor, but the water level fluctuations are possible with sudden currents entering and outgoing, which depending on the direction of prevailing winds and reaching speeds of up to 1.5 knots. At the entrance to the port at the West breakwater, It is Western. The primary function of the port of Swinoujscie is the transshipment of cereals, ores, oil, paper, cellulose, general cargo, coal, iron. Trying to test water were collected by PN/C-04632.03 with a depth of about. 2 m below the water surface. The temperature at the place of sampling were numbered, pH. Collected water samples were fixed in accordance with the recommendations in the Polish Standard-PN/C-04632.04. Other indicators for the quality of the Walters have been tagged within 24 hours from the moment of download attempts. The quality objectives was evaluated according to the criteria recommended to evaluate inland surface waters referred to In regulation of the Minister of the environment of 11 February 2004 on the classification for the prezent status of surface water and groundwater, how to conduct monitoring and how to interpret the results and presentation of these waters. Due to the exposure of the docks the port Swinoujscie on the pollution associated with cross-what are the cereals, ores, oil, cellulose, carbon, iron, general research evaluation of the water quality of these pools, you can assess the status of water in order to keep these waters.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2013, 1; 78-84
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
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:
Development and validation of reversed phase gradient HPLC method for the simultaneous estimation of olmesartan medoxomil and chlorthalidone in dosage forms
Autorzy:
Manikandan, S.
Thirunarayanan, G.
Powiązania:
https://bibliotekanauki.pl/articles/1194011.pdf
Data publikacji:
2015
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Accuracy
Acetonitrile
Buffer pH 3.0
Chlorthalidone
Forced degradation
Linearity
Olmesartan medoxomil
Precision
RP-gradient HPLC
Robustness
Simultaneous estimation
Opis:
The main objective of the proposed study is to develop and validate a new stability indicating reverse phase HPLC gradient method for the simultaneous estimation of olmesartan medoxomil and chlorthalidone in combined dosage form. The method is optimized by using zorbax phenyl column (250 x 4.6 mm, 5 μ). For pump-A, ammonium dihydrogen orthophosphate and pump-B, acetonitrile: are used. Phosphate buffer pH was adjusted with orthophosphoric acid to 3.0. Water and acetonitrile (45:50) are used as diluent. The flow rate is 1.5 ml/min and the elutant is monitored at 220 nm with uv detector. The retention time of olmesatran medoxomil and chlorthalidone are 10.70 ±0.1 mins and 4.8 ± 0.1 mins respectively. Precision shows that % Relative standard deviation of olmesartan medoxomil and chlorthalidone is about 0.23 and 0.56 respectively. The percentage recoveries of both the drugs olmesartan medoxomil and chlorthalidone from the dosage formulation are 100.3% and 99.20% respectively. Linearity of olmesartan medoxomil and chlorthalidone is in the range of 10.0 to 60.0 μg/ml and 6.25 μg/ml respectively. Calibration curve shows good linearity and range. The correlation coefficient of olmesartan medoxomil and chlorthalidone is 0.999. And the results obtained for Robustness and Ruggedness are well within the acceptance criteria. The proposed method is found to be simple, rapid, accurate and precise. It is found to be economical and suitable for simultaneous determination of olmesartan medoxomil and chlorthalidone in pharmaceutical dosage form.
Źródło:
World Scientific News; 2015, 9; 101-123
2392-2192
Pojawia się w:
World Scientific News
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:
Ocena jakości wód powierzchniowych w basenach portowych w Świnoujściu
Water quality of the surfaces waters of the swimming pools port in Swinoujscie
Autorzy:
Daniszewski, P.
Draszawka-Bołzan, B.
Powiązania:
https://bibliotekanauki.pl/articles/411844.pdf
Data publikacji:
2012
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
basen portowy
jakość wód
temperatura
pH
ChZTCr
BZT5
Cl
swimming pools port
natural water quality
temperature
COD-Cr
BOD5
Opis:
Celem niniejszej pracy było prześledzenie w okresie od 2004 do 2008 roku poziomu oraz dynamiki zmian w wodach basenów portowych Portu Świnoujscie parametrów ogólnych jakości wód. W pracy oznaczano wskaźniki ogólne wody: temperaturę, pH, ChZT-Cr, BZT5, Cl-. Wszystkie oznaczenia i obliczenia wykonywano według metod zalecanych przez Polskie Normy, stosując procedury analityczne opisane m.in. przez Dojlido, Elbanowska, Hermanowicza.
To estimate differentiation of water chemistry in reservoirs of swimming pools port in Swinoujscie, in time of 2004 - 2008. In arbitrary appointed times 5 physical and chemical indicators of water quality were determined to evaluate general status and water condition - temperature, pH, CODCr, BOD5, Cl -.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2012, 4; 96-102
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wybrane parametry jakości wód w basenach portowych w Szczecinie
Selected parameters of water quality of the swimming pools port in Szczecin
Autorzy:
Daniszewski, P.
Draszawka-Bołzan, B.
Powiązania:
https://bibliotekanauki.pl/articles/411875.pdf
Data publikacji:
2012
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
basen portowy
jakość wód
temperatura
pH
ChZTCr
BZT5
Cl
swimming pools port
natural water quality
temperature
COD-Cr
BOD5
Opis:
Celem niniejszej pracy było prześledzenie w okresie od 2004 do 2008 roku poziomu oraz dynamiki zmian w wodach basenów portowych Portu Szczecin parametrów ogólnych jakości wód. W pracy oznaczano wskaźniki ogólne wody: temperaturę, pH, ChZT-Cr, BZT5, Cl-. Wszystkie oznaczenia i obliczenia wykonywano według metod zalecanych przez Polskie Normy, stosując procedury analityczne opisane m.in. przez Dojlido, Elbanowska, Hermanowicza.
To estimate differentiation of water chemistry in reservoirs of swimming pools port in Szczecin, in time of 2004 - 2008. In arbitrary appointed times 5 physical and chemical indicators of water quality were determined to evaluate general status and water condition - temperature, pH, COD-Cr, BOD5, Cl -.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2012, 4; 103-111
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dynamika stężenia wybranych składników chemicznych w opadach atmosferycznych na terenie miasta Szczecin
The dynamics of concentration of selected chemical components of rainfalls in the Szczecin
Autorzy:
Daniszewski, P.
Powiązania:
https://bibliotekanauki.pl/articles/411706.pdf
Data publikacji:
2012
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
mokry opad zanieczyszczeń atmosferycznych
pH
stężenie składników chemicznych
wysokość opadów
wet fallout
atmospheric pollutants
concentration of chemical components
amount of precipitation
Opis:
Postęp cywilizacyjny a także nasilające sie procesy przekształcające środowisko naturalne wpływają niekorzystnie na poszczególne elementy środowiska przyrodniczego. Procesy te uświadamiają nam, że ochrona poszczególnych elementów środowiska przyrodniczego staje się podstawa dla dalszego rozwoju społeczno - ekonomicznego. Występujące w ostatnich latach zwiększające sie zanieczyszczenie atmosfery powoduje coraz większe zainteresowanie nauki ilością substancji znajdujących sie w niej oraz doprowadzanych z powrotem na powierzchnie ziemi. Duże znaczenie dla środowiska naturalnego maja substancje zawarte w wodzie opadowej, gdyż w postaci rozpuszczonej bardzo łatwo docierają do poszczególnych elementów środowiska przyrodniczego powodując ich zanieczyszczenie. Badania prowadzono w latach 2008 - 2011 (styczeń - grudzień) na terenie miasta Szczecin. W badaniach mierzono wysokość opadu, skład chemiczny (oznaczano jony - NH4 +, NO3 -, PO4 3-) oraz odczyn pH i przewodnictwo. Szczecin leży w północno-zachodniej Polsce, w zachodniej części woj. zachodniopomorskiego przy granicy polsko-niemieckiej. Miasto leży nad rzeka Odra oraz jeziorem Dąbie, obejmując część Międzyodrza. Szczecin jest położony na obszarze czterech mezoregionów geograficznych: Dolina Dolnej Odry, Wzniesienia Szczecińskie, Wzgórza Bukowe i Równina Goleniowska - wchodzą one w skład Pobrzeża Szczecińskiego. Najczęściej oddziałujące masy powietrza polarnomorskiego znad północnego Atlantyku charakteryzują sie duża wilgotnością, co latem wpływa na wzrost zachmurzenia i ilości opadów atmosferycznych; zima wiąże sie z ociepleniem i dużym zachmurzeniem. Masy te najczęściej zalegają latem i jesienią. Rzadziej napływa powietrze polarnokontynentalne z Europy Wschodniej i z Azji. Obecność tego powietrza obserwuje sie najczęściej zima i wiosna. Odznacza sie ono mała zawartością pary wodnej. Podczas jego zalegania wiosna występują liczne przymrozki, zimy są mroźne i słoneczne. Znacznie rzadziej napływa powietrze arktyczne - przynosi ono pogodę bardzo zmienna, ze znacznymi zmianami temperatury i wiosenne przymrozki. Najrzadziej notuje sie obecność powietrza zwrotnikowego, które niesie okresy gwałtownego ocieplenia, pojawiające sie niekiedy zima oraz sporadycznie latem.
The progress of civilization and also growing up processes the transformative environment adversely affect the individual elements of the natural environment. These processes they realize that individual elements of environmental protection becomes the basis for the further development of socio-economic background. In recent years the increasing pollution of the atmosphere causes more and more interest in the science of the substances contained in it and merge back to the surface of the Earth. Of great importance for the environment have the substances contained in the water drainage, as in the form of dissolved very easily reach the individual environmental elements causing their contamination. Research was carried out in the years 2008-2011 (January-December) In the town of Szczecin. In the tests was measured the amount of precipitation, chemical composition (NH4 +, NO3 -, PO4 3-- ions were numbered), pH and conductivity. Szczecin is situated in North-Western Poland, in the western part of the province. West at the Polish-German border. The town lies on the river Oder and the Lake Dabie, covering part of the inter-Odra. Szczecin is located on the city's Lower Oder Valley four geographical: Szczecin, Beech Hill, Elevation and Plain Goleniowska-they are part of port of Szczecin. The most affecting the North Atlantic air mass polarnomorskiego from the high humidity, which affects the increase in cloud cover and in the summer the amount of precipitation; in Winter involves a warming and a large and. These weight most outstanding summer and autumn. The presence of this air is observed most commonly in winter and spring. Is it a little water vapour content. Much less likely to flood the air Arctic-weather very variable, it brings with it major changes In temperature and spring frosts. Least likely has the presence of air, which brings periods of rapid warming marshes, appearing sometimes in winter and occasionally in the summer.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2012, 5; 80-87
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 17

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