Abstract
1. By the action of the enzyme of E. coli various kinds of B2-compounds of oligosaccharide were produced through successive transfer of glucosyl group between B2-compounds and maltose.
2. It was found that B2-compounds thus formed were decomposed enzymatically into B2 and oligosaccharides accompanying the formation of new B2-compounds of higher oligosaccharides.
3. From the observation mentioned above the essential mechanism of transglucosidation relating to B2 was discussed, and B2 was concluded to play a significant role as glucosyl carrier in the biochemical process of oligosaccharide synthesis.
