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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
10
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pubmed:dateCreated |
1993-2-2
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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.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
B
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/1-Propanol,
http://linkedlifedata.com/resource/pubmed/chemical/3-ketobutylidene...,
http://linkedlifedata.com/resource/pubmed/chemical/Glucosides,
http://linkedlifedata.com/resource/pubmed/chemical/Glucosyltransferases,
http://linkedlifedata.com/resource/pubmed/chemical/Nitrobenzenes,
http://linkedlifedata.com/resource/pubmed/chemical/alpha-Amylases,
http://linkedlifedata.com/resource/pubmed/chemical/cyclomaltodextrin glucanotransferase
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pubmed:status |
MEDLINE
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pubmed:month |
Oct
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pubmed:issn |
0916-8451
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
56
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1552-6
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pubmed:dateRevised |
2008-11-21
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pubmed:meshHeading |
pubmed-meshheading:1369056-1-Propanol,
pubmed-meshheading:1369056-Bacillus,
pubmed-meshheading:1369056-Carbohydrate Sequence,
pubmed-meshheading:1369056-Glucosides,
pubmed-meshheading:1369056-Glucosyltransferases,
pubmed-meshheading:1369056-Glycosylation,
pubmed-meshheading:1369056-Molecular Sequence Data,
pubmed-meshheading:1369056-Nitrobenzenes,
pubmed-meshheading:1369056-alpha-Amylases
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pubmed:year |
1992
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pubmed:articleTitle |
Enzymatic synthesis of 2-chloro-4-nitrophenyl 4,6-O-3-ketobutylidene beta-maltopentaoside, a substrate for alpha-amylase.
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pubmed:affiliation |
Chemical Research Laboratories, Yoshitomi Pharmaceutical Industries, Ltd., Fukuoka, Japan.
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pubmed:publicationType |
Journal Article
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