The ability of vinyl-beta-D-galactoside as a donor in transglycosylation reactions catalysed by the beta-glycosidase from Aspergillus oryzae using allylic alcohol and methyl-alpha-galactoside as accepters is tested. A kinetic study made in comparison with another donor, the 2-nitrophenyl-beta-D-galactoside, shows that the use of the latter leads at room temperature to better yields than those obtained from the former. A reverse situation is observed in ice at -7 degrees C, conditions in which the yield for transglycosylation can be enhanced from 59% to 82% with methyl-alpha-galactoside as an acceptor. (C) 1997 Elsevier Science Ltd.
MacManus, David A.; Grabowska, Urszula; Biggadike, Keith, Journal of the Chemical Society. Perkin transactions I, 1999, # 3, p. 295 - 305
作者:MacManus, David A.、Grabowska, Urszula、Biggadike, Keith、Bird, Michael I.、Davies, Stephen、Vulfson, Evgeny N.、Gallagher, Timothy
DOI:——
日期:——
Composition for therapeutic or diagnostic use
申请人:Källenius, Gunilla Petterson
公开号:EP0035484B1
公开(公告)日:1984-08-22
COMPOUNDS AND METHODS FOR THE TREATMENT OF BACTERIAL DYSENTERY USING ANTIBIOTICS AND TOXIN BINDING OLIGOSACCHARIDE COMPOSITIONS