两株野生沙棘酵母菌株的分子生物学鉴定及其发酵特性

摘要

应用26SrDNAD1／D2区域序列测定和系统发育分析，对从野生沙棘果中分离出的两株酵母菌JHZ3、WKZl-2进行了鉴定。结果表明，其分别为葡萄汁有孢汉逊酵母（Hanseniaspora uvarum）和戴尔凯氏有孢圆酵母（Torulaspora delbrueckii）。对这两株茵发酵特性的研究结果表明，JHZ3和WKZl—2在较强酸性条件下发酵能力强。%26S rDNA D1 / D2 area sequencing and system development analysis was applied to identify two yeast strains JHZ3 and WKZ1-2 iso- lated from wild sea buckthorn fruits. The results showed that they were spore han Hudson yeast （Harueniaspora uvarum） and DaiErKai＇s spore round yeast （Torulaspora delbrueckii） respectively. The research on their fermenting performance indicated that JHZ3 was better than WKZ1-2 in fermenting capacity in high acid conditions.