盾叶薯蓣发酵生产酒精的研究

Study on Alcohol Production by the Fermentation of Dioscorea Zingiberensis

研究了盾叶薯蓣发酵生产酒精的液化、糖化及发酵工艺条件。结果表明,发酵最优条件为糖化时间40min,接种量0.05%(w/w),发酵温度34℃,发酵时间60h,盾叶薯蓣的淀粉利用率为97%,淀粉出酒精率为53.5%,最终酒精度为7.8%Vol。利用盾叶薯蓣中的淀粉发酵生产酒精是可行的,能够取得良好的效果。

The liquefying conditions, saccharifying conditions and fermentation conditions in alcohol production by Dioscorea Zingiberensis fermentation were studied. The results suggested that the best technical conditions were as follows： 40 rain saccharification, 0.05 % （w/w）inoculation quantity, fermentation temperature at 34 ℃, 60 h fermentation, the use rate of starch in Dioscorea Zingiberensis as 97 %, alcohol yield as 53.5 %, and the final alcohol content as 7.8 %Vol. Alcohol production by the fermentation of the starch in Dioscorea Zingiberensis was feasible, which could produce satisfactory economic benefits.