Isolation and Identification of a Bacteria Strain with High Yield of Amylase from Congtai Daqu
In this study, transparent circle method and amylase activity measurement were adopted respectively for primary screening and sec-ondary screening of bacteria strains with high yield of amylase from Congtai Daqu. As a result, strain C3 with high yield of amylase was ob-tained and its amylase activity reached up to 63.1 U, 44.4%higher than that of the original Daqu. Through physiological and physiochemical identification, strain C3 was identified as gram-positive Bacillus and its single colony was yellowish-brown with matt surface, neat edge and ir-regular convex. This study provided reference for obtaining useful bacteria strains in distilleries to improve Daqu quality and liquor yield.
NETL
NSTL
万方数据
维普
