酿酒科技
釀酒科技
양주과기
LIQUOR-MAKING SCIENCE & TECHNOLOGY
2014年
11期
35-38
,共4页
赖颖%赵锦慧%胡炳义%栾春雪
賴穎%趙錦慧%鬍炳義%欒春雪
뢰영%조금혜%호병의%란춘설
微生物%酵母菌%筛选%生理生化特征%生长特性%酒精得率
微生物%酵母菌%篩選%生理生化特徵%生長特性%酒精得率
미생물%효모균%사선%생리생화특정%생장특성%주정득솔
microbe%yeast strain%screening%physiological and biochemical characteristics%growing features%alcohol yield
以中高温大曲为样品,筛选出10株能在45℃以上生长的菌株,其中L7能在58℃条件下正常生长。生理生化特征鉴定L7为Saccharomyces属的接合酵母。酵母菌L7在5 h后进入快速生长期,24 h后进入稳定期,30 h后进入衰亡期。L7的酒精发酵产量最高,酒精得率为55%。
以中高溫大麯為樣品,篩選齣10株能在45℃以上生長的菌株,其中L7能在58℃條件下正常生長。生理生化特徵鑒定L7為Saccharomyces屬的接閤酵母。酵母菌L7在5 h後進入快速生長期,24 h後進入穩定期,30 h後進入衰亡期。L7的酒精髮酵產量最高,酒精得率為55%。
이중고온대곡위양품,사선출10주능재45℃이상생장적균주,기중L7능재58℃조건하정상생장。생리생화특정감정L7위Saccharomyces속적접합효모。효모균L7재5 h후진입쾌속생장기,24 h후진입은정기,30 h후진입쇠망기。L7적주정발효산량최고,주정득솔위55%。
In the experiment, 10 yeast strains capable of growing at above 45 ℃ were screened out from high-temperature Daqu. Among them, strian L7 could grow well at 58℃. The analyis of its physiological and biochemical properties suggested that strain L7 was Saccharomyces. The time of strain L7 at rapid growth phase, stationary phase and decline phase were 5 h, 24 h, and 30 h after the fermentation respectively. And its maximum alcohol yield was 55%.