银杏叶提取物微生物转化的研究 Ⅰ.转化菌株鉴定及转化特性的初步研究

Study on microbial transformation of Ginkgo biloba extractant Ⅰ. Identification of microbial strain and its microbial characteristics

从银杏(Ginkgo biloba)叶提取物的微生物转化试验中,获得1株能够转化银杏叶提取物组分,编号为YM34161的微生物菌株．通过对该菌的形态特征观察及ITS(internal transcribed spacer)序列分析,确定该菌株为小刺青霉的1个新变种,命名为小刺青霉云南变种(Penicillium spinulosum var．yunnanensis n．var．Xing etCben)．同时对菌株YM34161转化银杏叶提取物组分前后变化进行了TLC对比．

A strain which was able to transformate Ginkgo biloba extractant was isolated in microbial transformation experiments and named YM34161. After observing and analyzing its micromorphology and ITS sequence,it was identified as a new variety of Penicillium spinulosum and designated as Penicillium spinulo sum var. yunnanensis n. var.Xing et Chen,and also described TLC before and after microbial transformation.