“…While trehalases are widely distributed in microorganisms, 6,7) plants, 8,9) invertebrates, [10][11][12] and vertebrates, [13][14][15] their physiological functions are poorly characterized, except that trehalase(s) in flying insects can be regarded as particularly significant in the rapid supply of glucose by hydrolyzing trehalose. However, several trehalases from different sources 16) have been reported to be capable of hydrolyzing specifically synthetic substrates, for instance, -D-glucopyranosyl -D-galactopyranoside, -D-xylopyranosyl -D-glucopyranoside, and -D-glucopyranosyl 6-deoxy--D-glucopyranoside.…”