A TWO STEP CHEMO-ENZYMATIC METHOD FOR THE SYNTHESIS OF FATTY ACID ASCORBYL ESTERS

被引：0
|
作者：
Karmee, Sanjib Kumar [1 ]
机构：
[1] Dept Biotechnol, Biocatalysis & Organ Chem Grp, NL-2628 BL Delft, Netherlands
来源：
JOURNAL OF OIL PALM RESEARCH | 2012年 / 24卷
关键词：
vitamin C fatty acid esters; fatty acid vinyl esters; lipase; transesterification; microwave irradiation; LIPASE-CATALYZED SYNTHESIS; ENZYMATIC-SYNTHESIS;
D O I：
暂无
中图分类号：
TS2 [食品工业];
学科分类号：
0832 ;
摘要：
Fatty acid vinyl esters were synthesised from the corresponding free fatty acids in 79%-84% yield using Hg (OAc)(2)/H2SO4 under microwave irradiation. Subsequently, the obtained fatty acid vinyl esters were utilised for the lipase catalysed acylation of vitamin C under microwave heating. Various lipases viz. Pseudomonas cepacia, Porcine pancreatic, Candida rugosa, Mucor miehei, Rhizopus oryzae and Novozyme-435 were screened for the acylation of vitamin C under microwave irradiation. Among these lipases, Novozyme-435 was found to be the best catalyst for this reaction. Five different ascorbyl esters were synthesised in 58%-85% yield in 3 hr using Novozyme-435.
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收藏
页码：1518 / 1523
页数：6
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