高温酵母的分离及其特性研究  

Isolation and characteristic identification of thermotolerant yeast

作　　者：王敏[1] 朱会霞[1] 孙金旭[1] 檀建新[2] 张伟[2] 路玲玲[2] 

机构地区：[1]河北衡水学院生物系,河北衡水053000 [2]河北农业大学食品科技学院生物工程系,河北保定071001

出　　处：《中国酿造》2006年第11期38-41,共4页China Brewing

摘　　要：从来源不同的基质中共分离得到227株耐高温酵母菌,经初筛、复筛和酒精发酵试验,获得一株耐高温的酵母菌株h-1,在42℃发酵72h,酒精产率为5.5%。研究了h-1菌株的形态和生理生化特性,经镜检观察和发酵糖类,同化碳源、同化氮源及无维生素生长试验,鉴定h-1菌株属于土星汉逊酵母(Hansenula Saturnus)。Two hundred and twenty seven thermotolerance yeasts were isolated from different materials for fuel ethanol production, in which one strain named h-1 was obtained by preliminary screening, secondary screening and ethanol fermentation. The production rate of ethanol reached 5.5% when fermentation was carried out with strain h-1 at 42℃ for 72h. Strain h-1 was identified as Hansenula Saturnus by microscope inspection, saccharide fermentation, carbon source assimilation, nitrogen source assimilation and vitamin test for its morphological, physiological and biochemical characteristics.

关 键 词：酵母 分离 鉴定 

分 类 号：Q93-331[生物学—微生物学]