The invention relates to a method of composite carrier mixed fixed yeast fermentation tobacco waste ethanol preparation includes: (1) the Lars 12, 13461578 yeast were inoculated into yeast seed culture medium at 30 C 150r / min under the condition of culture; (2) polyvinyl alcohol, sodium alginate and diatomite, adding 60ml 24h36h soaked in distilled water, sterilization; (3) three kinds of yeast seed liquid and composite carrier mixing, injection to crosslinked 20h22h, saturated 1%CaCl2 solution containing boric acid washing; (4) the immobilized access proliferation medium; (5) to access the 10% inoculation fermentation medium, the fermentation in 25 C - 35 DEG C and 150r / min conditions. The method has the advantages of simple method, low cost and high yield as high as 49.3g / kg, and is suitable for large-scale production.
【技术实现步骤摘要】
【技术保护点】
一种复合载体混合固定酵母菌发酵烟草下脚料制备乙醇的方法,包括: (1)将拉斯12号,1346,1578酵母分别接种于酵母种子培养基中,在30℃,150r/min条件下培养24h-36h,得到种子液; (2)取10g聚乙烯醇、0.5g海藻酸钠和5g硅藻土,加入60ml蒸馏水浸泡24h-36h,之后在110℃下灭菌10min,冷却至40℃,制得复合载体; (3)将步骤(1)三种酵母菌种子液与步骤(2)复合载体混合均匀,注射到含有1%CaCl↓[2]饱和的硼酸溶液进行交联20h-22h,使用生理盐水和无菌水洗涤,得到固定化小球; (4)将上述固定化小球接入增殖培养基中,3 ...
【技术特征摘要】
【专利技术属性】
技术研发人员:赵晓祥,谢丽萍,
申请(专利权)人:东华大学,
类型:发明
国别省市:31[中国|上海]
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