Galactosylation at Side Chains of Branched Cyclodextrins by Various β-Galactosidases

1 January 1992

journal article
Published by Taylor & Francis in Bioscience, Biotechnology, and Biochemistry

Vol. 56 (2) , 242-245
https://doi.org/10.1271/bbb.56.242

Abstract

The galactosyl transfer reaction to branched cyclodextrins (CDs) was investigated using lactose as a donor substrate and branched CDs as acceptors by various beta-galactosidases. Bacillus circulans beta-galactosidase synthesized galactosyl transfer products to branched CDs, of which the galactose residues were linked at side chains of branched CDs, not directly at CD rings. Aspergillus oryzae and Penicillium multicolor beta-galactosidases also produced derivatives galactosylated at side chains of branched CDs. The structures of main transgalactosylation products of branched CDs by these beta-galactosidases seem to be different from those by B. circulans beta-galactosidase, judging from the retention times on high performance liquid chromatography.

Keywords

This publication has 0 references indexed in Scilit: