Optimization of oligoglycerol fatty acid esters preparation catalyzed by Lipozyme 435
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چکیده
منابع مشابه
Preparation of fatty acid methyl esters for gas-liquid chromatography.
A convenient method using commercial aqueous concentrated HCl (conc. HCl; 35%, w/w) as an acid catalyst was developed for preparation of fatty acid methyl esters (FAMEs) from sterol esters, triacylglycerols, phospholipids, and FFAs for gas-liquid chromatography (GC). An 8% (w/v) solution of HCl in methanol/water (85:15, v/v) was prepared by diluting 9.7 ml of conc. HCl with 41.5 ml of methanol....
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Wax esters are long-chain esters that have been widely applied in premium lubricants, parting agents, antifoaming agents and cosmetics. In this study, the biocatalytic preparation of a specific wax ester, cetyl octanoate, is performed in n-hexane using two commercial immobilized lipases, i.e., Lipozyme(®) RMIM (Rhizomucor miehei) and Novozym(®) 435 (Candida antarctica). Response surface methodo...
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Our recent survey (B. L. Brian and E. W. Gardner, unpublished data) of fatty acids extracted from a variety of bacterial species (Escherichia coli, Staphylococcus aureus, Sarcina lutea, Serratia marcescens, Salmonella shottmuelleri, Proteus vulgaris, Bacillus subtilis, Pseudomonas fluorescens, and several strains of Vibrio cholerae) called for a rapid, reproducible technique for extraction, est...
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Immobilized Candida antarctica lipase B, Novozym 435, was used as the biocatalyst in the esterification of adipic acid with four different isomers of butanol (n-butanol, sec-butanol, iso-butanol, and tert-butanol). Optimum conditions for the synthesis of adipate esters were obtained using response surface methodology approach with a four-factor-five-level central composite design concerning imp...
متن کاملDirect Determination of MCPD Fatty Acid Esters and Glycidyl Fatty Acid Esters in Vegetable Oils by LC–TOFMS
Analysis of MCPD esters and glycidyl esters in vegetable oils using the indirect method proposed by the DGF gave inconsistent results when salting out conditions were varied. Subsequent investigation showed that the method was destroying and reforming MCPD during the analysis. An LC time of flight MS method was developed for direct analysis of both MCPD esters and glycidyl esters in vegetable o...
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ژورنال
عنوان ژورنال: Grasas y Aceites
سال: 2015
ISSN: 1988-4214,0017-3495
DOI: 10.3989/gya.1180142