10Ganghofner D, Kellermann J, Staudenbaner L, et al. Purification and properties of an amylopullulanase, a - glucoamylase, and an alphaglucosidase in the amylolytic enzyme system of thermoanaerobacterium thermosaccharolyticum[ J ]. Bioscience, Biotechnology and Biochemistry, 1998,62 ( 2 )302 - 308.