Enzymatic synthesis of alkyl glucosides using Leuconostoc mesenteroides dextransucrase.
Young-Min Kim, Byung-Hoon Kim, Joon-Seob Ahn, Go-Eun Kim, Sheng-De Jin, Thanh-Hanh Nguyen, Doman Kim
Index: Biotechnol. Lett. 31(9) , 1433-8, (2009)
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Abstract
Alkyl glucosides were synthesized by the reaction of Leuconostoc mesenteroides dextransucrase with sucrose and various alcohols. Alkyl alpha-D-glucosides were obtained with a yield of 30% (mol/mol) with primary alcohols, but secondary alcohols or tertiary alcohols gave yields below 5%. The optimal yield was 50% using 1-butyl alpha-D-glucoside with 0.9 M 1-butanol. The acceptor products of methanol or ethanol were confirmed as methyl alpha-D-glucopyranoside and ethyl alpha-D: -glucopyranoside via MALDI-TOF MS and NMR analysis. Thus, methyl or ethyl alpha-D-glucoside constituted half the emulsification activities of Triton X-100 as commercially available surfactants.
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