Počet záznamů: 1

Kinetic Study for the Ethanolysis of Fish Oil Catalyzed by Lipozyme (R) 435 in Different Reaction Media.

SYSNO ASEP	0455939
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	Kinetic Study for the Ethanolysis of Fish Oil Catalyzed by Lipozyme (R) 435 in Different Reaction Media.
Tvůrce(i)	Bucio, S.L. (MX) Soalesa, A.G. (ES) Sanz, M.T. (ES) Melgosa, R. (ES) Beltrán, S. (ES) Sovová, Helena (UCHP-M)_{RID, ORCID, SAI}
Zdroj.dok.	Journal of Oleo Science - ISSN 1345-8957 Roč. 64, č. 4 (2015), s. 431-441
Poč.str.	11 s.
Jazyk dok.	eng - angličtina
Země vyd.	JP - Japonsko
Klíč. slova	fish oil ; ethanolysis ; kinetic parameters ; lipase
Vědní obor RIV	CI - Průmyslová chemie a chemické inženýrství
Institucionální podpora	UCHP-M - RVO:67985858
UT WOS	000351975300010
EID SCOPUS	84926150912
DOI	10.5650/jos.ess14263
Anotace	The ethanolysis of fish oil in various reaction medium (tert-pentanol, n-hexane and solvent free system) catalyzed by the immobilized commercial lipase Lipozyme (R) 435 (Candida Antarctica) at atmospheric pressure has been studied in this work. The effect of some kinetic parameters, such as the amount of lipase, temperature and the initial reactant molar ratio ethanol:oil on monoacyglyceride and ethyl ester yield has been analyzed. Experimental data were successfully correlated by a simple kinetic model based on the elementary reactions proposed in this work. At high initial reactant molar ratio the three elementary steps can be considered as irreversible. However the reaction rate constants ratio for the deacylation of monoglyceride to glycerol decreased by decreasing the molar ratio ethanol: oil. The reaction rates are slower in n-hexane as reaction medium compared to tert-pentanol and a solvent-free system, at the experimental conditions essayed in this work. In this last case, ethanol acts as solvent for reaction and as reactant.
Pracoviště	Ústav chemických procesů
Kontakt	Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227
Rok sběru	2016

Počet záznamů: 1