The mechanism of degradation of starch by amylases

Abstract

concluded from measurements of optical rotation that the amylases of pancreas and of Aspergillus oryzae apparently yielded a-maltose as a primary fission product of starch, whereas malt amylase produced f-maltose. Sub- sequently Ohlsson [1930] found by the same method that the two amylases of malt fractionated by his method [1926; 1930] also behaved as a-and fl-amylases respectively, and that of ungerminated barley as a fl-amylase.