LAUSR

Bilanicova D. , Mastihuba V., Mastihubova M., Balesova J., Schmidt S. (2010): Improvements in enzymatic preparation of alkyl glycosides. Czech J. Food Sci., 28: 69-73. Three glycosides of middle chain aliphatic alcohols (hexanol and heptanol) were prepared by enzymatic glycosida - tion. The preparation of hexyl β- d-glucopyranoside was achieved in moderate yields via reverse hydrolysis catalysed by defatted meals from almond, apricot, and peach kernels. The apricot meal as a cheap source of β-glucosidase was found to have catalytic efficiency resembling to that of the almond meal. Hexyl and heptyl β- d-galactopyranosides were prepared from d-lactose by transgalactosidation catalysed by commercial β-galactosidases from aspergillus oryzae in two-phase system. The improvement of the product yields was achieved by a simple replacement of the organic phase (serving as a pool of acceptor alcohol and extracted product) with a fresh portion of the acceptor.