Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
10
pubmed:dateCreated
1993-2-2
pubmed:abstractText
A transglycosylation reaction with 2-chloro-4-nitrophenyl beta-maltoside as an acceptor was done with 4,6-O-3-ketobutylidene maltopentaose and Bacillus macerans cyclodextrin glucanotransferase in an aqueous solution containing 50% n-propanol, and there were two main transglycosylation products. They were identified as 2-chloro-4-nitrophenyl 4,6-O-3-ketobutylidene beta-maltopentaoside and 2-chloro-4-nitrophenyl 4,6-O-3-ketobutylidene beta-maltohexaoside, and their yields were 30% and 21% respectively on the basis of the decrease of 4,6-O-3-ketobutylidene maltopentaose. For the production of 2-chloro-4-nitrophenyl 4,6-O-3-ketobutylidene beta-maltopentaoside at high substrates concentrations, the addition of n-propanol in this reaction not only increased the solubility of 2-chloro-4-nitrophenyl beta-maltoside sufficiently but also suppressed side reactions.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
B
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0916-8451
pubmed:author
pubmed:issnType
Print
pubmed:volume
56
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1552-6
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Enzymatic synthesis of 2-chloro-4-nitrophenyl 4,6-O-3-ketobutylidene beta-maltopentaoside, a substrate for alpha-amylase.
pubmed:affiliation
Chemical Research Laboratories, Yoshitomi Pharmaceutical Industries, Ltd., Fukuoka, Japan.
pubmed:publicationType
Journal Article