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.
出处
《中国酿造》
CAS
北大核心
2006年第11期38-41,共4页
China Brewing
关键词
酵母
分离
鉴定
yeast
isolation
identification
