Monoesters of glycosides and a process for enzymatic preparation thereof
申请人:Novo Nordisk A/S
公开号:US05191071A1
公开(公告)日:1993-03-02
Compounds of the formula (R-COO).sub.n X-OR.sup.1, wherein R.sup.1 is optionally substituted alkyl, phenyl, or alkyl phenyl, n is 1, 2 or 3, X is a carbohydrate moiety, and R is optionally substituted alkyl, have superior effects as additives in detergents. These compounds can be prepared by esterification of glycosides using specific enzymes.
Process for producing saccharide fatty acid monoesters
申请人:LION CORPORATION
公开号:EP0413307A1
公开(公告)日:1991-02-20
A process for producing a saccharide fatty acid monoester comprises reacting an immobilized thermostable lipase on a mixture comprising:
(A) one or more of acyl donors selected from saturated and unsaturated fatty acids with 6 to 22 carbon atoms, lower alkyl esters of said fatty acids and glycerol esters of said fatty acids,
(B) one or more of saccharides selected from monosaccharides with 5 to 7 carbon atoms, disaccharides composed of hexose, sugar alcohols with 4 to 6 carbon atoms, ethers of monosaccharides with 5 to 7 carbon atoms and monohydric alcohols and ethers of disaccharides composed of hexose and monohydric alcohols, and
(C) one or more of alcohols selected from secondary alcohols and tertiary alcohols.