【摘要】 提出了一种新的检测啤酒酵母细胞活性的方法———细胞分析仪检测法。通过这种方法 ,研究了啤酒酵母自溶对酵母细胞活性的影响 ,以及高低温贮存时酵母细胞活性的变化情况。结果表明 ,低温贮存较高温条件贮存细胞活性下降幅度小。另外 ,还对不同代数酵母在发酵过程中的细胞活性进行了跟踪测定与比较分析 ,指出了啤酒发酵过程中酵母细胞活性的变化趋势 ,同时发现酵母的细胞活性影响啤酒中双乙酰的还原。更多还原

【Abstract】 A new method which was used to test vitality of beer yeast by Cyto Analysis 2000 was introduced in this research.With this method, the effect of autolyzation on the yeast vitality and the variation of yeast viability when the beer yeast was stored in high or low temperature were studied.The results showed that the vitality declined more slowly when the yeast was stored in low temperature than in high temperature. The vitality of yeast was tested continuously during the process of fermentation and a comparation and analysis of the results was given. The results show the trend of vitality variation during the fermentation, and the effects of the vitality of yeast on diacetyl reduction.更多还原