Specific alpha-cyclodextrin production by a novel thermostable cyclodextrin glycosyltransferase

descriptionPublicationkeyboard_double_arrow_right Article 01 Jun 1988 English Publisher:Springer Science and Business Media LLCJournal:Applied Microbiology and Biotechnology, volume 28, pages 377-379 (issn: 0175-7598, eissn: 1432-0614,

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Authors: Ernest K. C. Yu; Hiroyuki Aoki; Masanaru Misawa;

doi: 10.1007/bf00268199

Specific alpha-cyclodextrin production by a novel thermostable cyclodextrin glycosyltransferase

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Abstract

A novel bacterial isolate, Bacillus amyloliquefaciens strain AL 35, produced high yields of a cyclodextrin glycosyltransferase (CGT'ase) when grown in a submerged culture. The stability of CGT'ase to high temperature and alkaline pH enabled processing for cyclodextrin production to be carried out at 60° C and pH 9.0. Crude culture filtrates containing the CGT'ase could convert gelatinized starch substrates to predominatly α-cyclodextrins (up to 95% of the total cyclodextrin yields).

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