Temat: free fatty acid - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Acetyl-coenzyme A carboxylase – an attractive enzyme for biotechnology
Autorzy:: Podkowinski, J.
Tworak, A.
Powiązania:: https://bibliotekanauki.pl/articles/80298.pdf
Data publikacji:: 2011
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: coenzyme A
carboxyl transferase
fatty acid
free fatty acid
triacylglycerol
biotin carboxylase
biotechnology
enzyme
carboxylation
acetyl-CoA carboxylase
current knowledge
Źródło:: BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2011, 92, 4
0860-7796
Pojawia się w:: BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Dizelnoe biotoplivo s zhirosoderzhashhikh otkhodov pticevodstva
Biodiesel with fat - containing poultry waste
Autorzy:: Mushtryk, M.
Sukhenko, J.
Powiązania:: https://bibliotekanauki.pl/articles/76318.pdf
Data publikacji:: 2014
Wydawca:: Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:: esterification
biofuel
production technology
biodiesel fuel
waste
poultry processing plant
methyl ester
chicken
free fatty acid
Źródło:: Motrol. Motoryzacja i Energetyka Rolnictwa; 2014, 16, 3
1730-8658
Pojawia się w:: Motrol. Motoryzacja i Energetyka Rolnictwa
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Optimization of rapeseed oil fatty acid esterification with methanol in the presence of sulfuric acid
Autorzy:: Brinks, J.
Malins, K.
Kampars, V.
Prilucka, J.
Apseniece, L.
Powiązania:: https://bibliotekanauki.pl/articles/780067.pdf
Data publikacji:: 2013
Wydawca:: Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:: biodiesel
free fatty acids
sulfuric acid
methanol
esterification
Opis:: The interest in biodiesel production from low cost feedstocks is still increasing. Such feedstocks usually contain large amounts of free fatty acids, which make the currently employed base catalysts inefficient, thereby promoting the use of acid catalysts. Due to the high activity and low cost, sulfuric acid could become the most widely used acid catalyst for biodiesel production. Research undertaken so far using sulfuric acid for esterifi cation of fatty acids has shown that the products obtained fail to meet the requirements of the standard EN 14214. This paper describes a systematic study of rapeseed oil fatty acids esterification in order to obtain a product complying with the standard EN 14214. The influence of sulfuric acid concentrations (0.1-3.0%), methanol molar ratios (1:1-20:1) and reaction time (0-360 min) was evaluated. Finally, a two-stage esterification process was developed, where in optimal conditions esterification yield of 97.8% and ester content of 99.6% were achieved.
Źródło:: Polish Journal of Chemical Technology; 2013, 15, 4; 54-59
1509-8117
1899-4741
Pojawia się w:: Polish Journal of Chemical Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Changes in the fatty acid composition of avocado fruit treated with preparations during storage
Autorzy:: Kolodyaznaya, Valentina S.
Kiprushkina, Elena I.
Shestopalova, Irina A.
Broyko, Yuliya V.
Rumiantceva, Olga N.
Albulov, Aleksey I.
Rogozina, Elena A.
Powiązania:: https://bibliotekanauki.pl/articles/1034243.pdf
Data publikacji:: 2019
Wydawca:: Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
Tematy:: avocado fruit
bacteria-antagonists
chitosan
fatty acid composition
free fatty acids
storage
Opis:: This article presents data on the fatty acid composition of avocado fruit and the dynamics of the free fatty acid content during storage of fruit treated with preparations “Agrohit”, “KHAN-8”, and “Extrasol-90”, which have antimicrobial properties. Avocado fruit treated with preparations by spraying and without treatment were placed in polymer containers and stored at a temperature of (4±1)°C and relative humidity of 90–95% for 45 days. During the storage of avocado fruit, the fat content was determined by the Soxhlet method and free fatty acids were determined on a Shimadzu 20-AD chromatograph. It has been established that palmitic, palmitoleic, oleic, and linolenic acids predominate in Fuerto avocado fruit. It has been shown that during storage of avocado fruit treated with preparations, the hydrolysis of fats (triacylglycerides) is slowed down, which reduces the accumulation of free fatty acids. It was determined that treatment of fruit with the preparation “KHAN-8” slows down the oxidation of arachidonic acid, which is a resistance inducer of the fruit to phytopathogens.
Źródło:: Progress on Chemistry and Application of Chitin and its Derivatives; 2019, 24; 75-83
1896-5644
Pojawia się w:: Progress on Chemistry and Application of Chitin and its Derivatives
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Trans-arachidonic acids: new mediators of inflammation
Autorzy:: Balazy, M.
Powiązania:: https://bibliotekanauki.pl/articles/69394.pdf
Data publikacji:: 2000
Wydawca:: Polskie Towarzystwo Fizjologiczne
Tematy:: arachidonic acid
lipid
uric acid
protein
dairy fat
inflammation
fatty acid
free radical
DNA
Źródło:: Journal of Physiology and Pharmacology; 2000, 51, 4,1
0867-5910
Pojawia się w:: Journal of Physiology and Pharmacology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: The effect of oils quality and transesterification method on the degree of conversion of the fatty acids methyl esters
Autorzy:: Ambrosewicz-Walacik, M.
Tańska, M.
Jankowski, K.
Powiązania:: https://bibliotekanauki.pl/articles/243737.pdf
Data publikacji:: 2016
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: oil
fat
free fatty acids
acid value
method of transesterification
Opis:: The aim of the work was to determine the effect of oils quality and transesterification method on the degree of conversion of the fatty acids. Material consisted of 4 samples of oil: rapeseed oil obtained by the laboratory hot pressing of rape seeds oils in approx. 80 °C, waste rapeseed and palm oils and one refined rapeseed oil. Oils used in the one-stage transesterification were characterized by a lower hydrolysis and oxidation degree than the oils used in two-stage transesterification (double-base and base-acid method). The quality of the obtained crude methyl esters was determined in terms of acid number, peroxide value, the lipid composition by thin layer chromatography. Quantitative testing of the degree of transesterification and the share of individual esters of fatty acids was conducted by gas chromatography. Studies have shown that that degree of conversion of the fatty acid methyl esters is dependent on both the quality of the oil and the method of transesterification. If oils are characterized by a good quality, then a method of transesterification is less important. However, if oils are heavily contaminated, then the right technology for their transesterification should be chosen, e.g. oil with high content of FFA should be subjected to base-acid transesterification. Studies have shown. If oils are characterized by a good quality, then a method of transesterification is less important. However, if oils are heavily contaminated, then the right technology for their transesterification should be chosen, e.g. oil with high content of FFA should be subjected to base-acid transesterification.
Źródło:: Journal of KONES; 2016, 23, 2; 17-23
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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