【摘要】 从22种食品工业用酵母、霉菌等和豆豉分离菌中筛选能将大豆异黄酮转化为其甙元的菌株。经过α-纤维素平板的快速初筛,摇瓶复筛,最终选出了产β-葡萄糖苷酶酶活较高的菌株O3。经鉴定O3菌株为米曲霉,采用了京尼平甙法测其相对酶活,于590nm处测得O3菌株的吸光度为1.3。更多还原

【Abstract】 The object of this research was to screen the strain which can change soy isoflavones to glucoside from 22 strains including yeast,mold and strains isolated from lobster sauce samples.Aspergillus orgzae O3 producing β-glucosidase was quickly selected by α-cellulose and re-selected by shaking fermentation.The enzymatic activity was measured and the OD was 1.3 at 590 nm.更多还原