Enzymatic synthesis of monosaccharide fatty acid esters and their comparison with conventional products |
| |
Authors: | Giuseppe Fregapane Douglas B Sarney Sydney G Greenberg Dorothy J Knight Evgeny N Vulfson |
| |
Affiliation: | (1) Department of Biotechnology and Enzymology, AFRC Institute of Food Research, Earley Gate, Whiteknights Road, RG6 2EF Reading, UK |
| |
Abstract: | 5-O-Acyl-1,2-O-isopropylidene-D-xylofuranose and 6-O-acyl1,2∶3,4-di-O-isopropylidene-D-galactopyranose were enzymatically prepared from the corresponding monosaccharide acetals and commercial
(crude) fatty acid mixtures. Subsequent acid-catalyzed hydrolysis of the isopropylidene group(s) gave monosaccharide esters
with overall yields of 59–88%, where the monoester content was at least 80% (galactose oleate) and typically 90% for the other
preparations. In contrast to sugar fatty acid esters prepared by conventional, high-temperature (trans)esterification, the
enzymatically obtained monosaccharide esters contained no appreciable quantities of undersirable side products, and the only
contaminants were monosaccharides and fatty acids. |
| |
Keywords: | Lipase sorbitan esters sugar fatty acid esters |
本文献已被 SpringerLink 等数据库收录! |
|