致牛肉酱生膜菌的分离鉴定及其生膜能力验证Isolation and Identification of Biofilm-forming Strains in Beef Sauce and Analysis of Their Spoilage
郭壮,董蕴,尚雪娇,倪慧,周明会,张振东
摘要(Abstract):
采用传统培养方法,从生膜牛肉酱中分离到了4株酵母菌,经菌落与显微形态观察和26SrDNA中D1/D2区序列分析,发现它们与Candida metapsilosis序列相似度最高,属于Candida parapsilosis complex,经系统发育分析,所分离到的4株酵母菌鉴定为Candida metapsilosis。此外,将这4株酵母菌重新接入到无菌牛肉酱中培养,发现它们能引起牛肉酱产膜,因此确认分离到的4株Candida metapsilosis是牛肉酱生膜的腐败菌。
关键词(KeyWords): 牛肉酱;生膜菌;假丝酵母属
基金项目(Foundation): 湖北省高等学校优秀中青年科技创新团队计划项目(T201616)
作者(Author): 郭壮,董蕴,尚雪娇,倪慧,周明会,张振东
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