期刊
CHEMPLUSCHEM
卷 88, 期 1, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cplu.202200331
关键词
biocatalysis; biosurfactants; emulsifiers; lactose; sugar fatty acid esters
A library of alkyl galactosides synthesized as non-ionic surfactants showed that esters of galactopyranosides are superior to those of galactofuranosides in terms of interfacial tension and emulsifying properties. The enantiopure n-butyl 6-O-palmitoyl-beta-D-galactoside, prepared by the fully enzymatic route, led to the most stable emulsion. These findings suggest the potential use of lactose-rich cheese whey to obtain bio-based surfactants.
A library of alkyl galactosides was synthesized to provide the polar head of sugar fatty acid esters to be tested as non-ionic surfactants. The enzymatic transglycosylation of lactose resulted in alkyl beta-D-galactopyranosides, whereas the Fischer glycosylation of galactose afforded isomeric mixtures of alpha- and beta-galactopyranosides and alpha- and beta-galactofuranosides. n-Butyl galactosides from either routes were enzymatically esterified with palmitic acid, used as the fatty acid tail of the surfactant, giving the corresponding n-butyl 6-O-palmitoyl-galactosides. Measurements of interfacial tension and emulsifying properties of n-butyl 6-O-palmitoyl-galactosides revealed that the esters of galactopyranosides are superior to those of galactofuranosides, and that the enantiopure n-butyl 6-O-palmitoyl-beta-D-galactoside, prepared by the fully enzymatic route, leads to the most stable emulsion. These results pave the way to the use of lactose-rich cheese whey as raw material for the obtainment of bio-based surfactants.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据