木薯粉浓醪酒精同步糖化发酵5L～100L放大试验

摘要

Using cassava meal as raw materials, alcohol was produced by simultaneous saccharification and high ethanol gravity fermentation.The scale-up experiment with 5L～100L fermenter was conducted on the basis of flask experiment.The results showed that the fermentation efficiency was about 90％ and the maximum alcohol volume reached 14.55％vol when total sugar concentration was about 24.5％ (m/v).The fermentation efficiency was reduced to 75.9％ when the total sugar concentration was about 30％ (m/v).%以木薯粉为原料进行浓醪酒精同步糖化发酵,在前期三角瓶试验的基础上进行5L～100L罐的放大试验.结果表明,在总糖含量为24.5%(m/v)左右时,放大试验效果较好,发酵效率在90%左右,发酵的终酒精浓度最高达到14.55%vol;当总糖含量提高为30%(m/v)时,发酵效率明显下降,只有75.9%.