饲料级啤酒酵母菌培养条件的优化  

The optimization of feed-grade beer yeast culture conditions

作　　者：李梅[1] 柴家前[1] 孙英峰[2] 郭慧君[1] 张伟[1] 刘玉洁[1] 常维山[1] 

机构地区：[1]山东农业大学动物科技学院,山东泰安271018 [2]天津市畜牧兽医研究所,天津300112

出　　处：《西南农业学报》2008年第3期829-832,共4页Southwest China Journal of Agricultural Sciences

基　　金：山东农业大学泰山学者基金资助项目(0609)

摘　　要：通过实验室和中等规模生产车间试验,对饲料级啤酒酵母的培养条件进行筛选?生产工艺进行优化,进而选择形成优良的酵母菌生产工艺,生产出质优价廉的饲料级酵母培养物。结果表明,酵母菌最佳液体培养基组成为2%的葡萄糖、1.8%的麦芽糖、0.5%硫酸铵、0.5%氯化钾、0.5%硫酸镁、0.5%氯化钠和土豆液,最佳培养时间为48 h。在进行酵母菌的固体培养时,加豆汁量为投料量的60%,菌种的接种量为2%,培养温度为31℃,培养时间为72 h时,酵母菌的繁殖效果最好,可达83亿/g。Through laboratory and medium-scale production workshop test, the optimal yeast culture conditions were established, and an excellent choice yeast production technology was formed, and the feed-grade yeast culture in high quality at low price was produced. The result showed that the best liquid medium was composed of 2 % glucose, 1.8 % of maltose,0.5 % ammonium sulfate,0.5 % potassium chloride, 0.5 % magnesium sulfate,0.5 % sodium chloride and potato juice. The optimum time to culture yeast in liquid was 48 hours. During Solid the yeast culture,soybean milk in the amount of 60% of medium, seed lot amount 2 %, temperature 31 ℃, the incubation time of 72 h,the best effect of yeast growth reached ,up to 8.3 billion/grams.

关 键 词：啤酒酵母 培养条件 筛选 

分 类 号：S963.327[农业科学—水产养殖]