Methods for the production of esters of .alpha.-glucosides and u

Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Preparing compound containing saccharide radical

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435 97, 435 99, 435105, 435134, 435135, 536 41, 536102, 536115, 536124, C12P 1944, C12P 1918, C12P 764, C07H 1306

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active

057732566

ABSTRACT:
Disclosed is a process of enzymatically preparing .alpha.-glucoside esters. First, .alpha.-glucosides are produced by placing an acyclic alcohol or a mixture of acyclic alcohols having a water solubility of at least 2.7% v/v at 20.degree. C. in contact with starch, maltodextrins or maltose, in the presence of a purified enzymatic preparation having .alpha.-transglucosylation activity, wherein the enzymatic preparation is free of .beta.-glucosidase activity. Then, the .alpha.-glucosides are contacted with at least one fatty acid and a preparation having lipase activity to produce the .alpha.-glucoside esters, which may then be recovered. The preparation having .alpha.-transglucosylation activity may originate from a fungus such as Talaromyces duponti, Aspergillus niger, Aspergillus oryzae or Aspergillus batatae.

REFERENCES:
patent: 4683297 (1987-07-01), Yanami et al.
patent: 5191071 (1993-03-01), Kirk et al.
patent: 5200328 (1993-04-01), Kirk et al.
Yalpani, Studies in Organic Chemistry 36, Chapter 9, pp. 371-405, Elsevier, New York, 1988.
ATCC Catalogue of Fungi/Yeasts, 17.sup.th Ed., 1987, p. 45.
Fogarty, W.M. and Benson, C.P. (1982) "Measurement of Glucose Transfer to Glycerol by Aspergillus Niger Transglucosidas", Biotechnology Letters, 4:61-64.
Itano, K. et al. (1980) "Stereospecific Preparation of Monoglucosides of Optically Active trans -1, 2-Cyclohexandiols by Enzymic Trans-D-Glucosylation, and .sup.13 C-N.M.R. Spectroscopy of the Resulting Mono-D-Glucopyranosides", Carbohydrate Research 87:27-34.
Pan, S.C. (1970) "Synthesis of Estriol 16.beta.-(.beta.-D-Glusides) by Enzymic Transglucosylation", Biochemistry 9:1833-1838.
Bjorkling, Fredrik et al. (1989) "A Highly Selective Enzyme-catalyzed Esterification of Simple Glucosides", J. Chem. Soc., Chem. Commun.: 934-635.
Adelhorst, Kim et al. (1990) "Enzyme Catalysed Preparation of 6-O-Acylglucopyrano-sides", Synthesis: 112-115.

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