Esterification of methyl glycoside mixtures by lipase catalysis |
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| Authors: | Armando Co´rdova Karl Hult Tommy Iversen |
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| Affiliation: | (1) STFI, Swedish Pulp and Paper Research Institute, PO Box 5604, S-114 86 Stockholm, Sweden;(2) Department of Biochemistry and Biotechnology, Royal Institute of Technology, S-100 44 Stockholm, Sweden |
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| Abstract: | The acylation of a mixture of methyl  -D-galacto-, methyl  -D-gluco- and methyl -D-mannopyranosides by octanoic acid was catalysed by lipases from Candida antarctica, Pseudomonas cepacia, Candida rugosa OF or Mucor miehei in acetonitrile at 45°C. The methyl glycopyranosides had the same anomeric configuration as that of the softwood hemicellulose galactoglucomannan. C. rugosa OF lipase had almost no substrate specificity and P. cepacia lipase had a high substrate specificity for the esterification of methyl -D-galactopyranoside. |
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