【摘要】 <正> 我国发酶法酒精生产大都采用淀粉质原料,其中尤以薯干最为普遍。其传统生产方法是将薯干粉碎、调浆、高温蒸煮、糖化,然后发酵并经蒸馏而得酒精。在这一生产过程中仅蒸煮工序就要消耗大量的蒸气,其能耗约占整个生产总更多还原

【Abstract】 In this paper, a new alcoholic fermentation technology is studied, which is combined with low temperature cooking process and immobilized yeast fermentation technology from dried sweet potato mash with dregs. The results show that the optimum temperature of multiplication is 32—33℃ when the calcium alginate gel as carrier and the saccharified liquid of dried sweet potato as multiplication media; the packed bed of thin piece with menbrane of immobilized yeast is a better bioreactor for the alcoholic fermentation from saccharified mash. of dried weet potato with dregs, productivity based on bed volume is 9.8g EtOH/L·h; the fermentation scheme is suitable which adopts primary fermentation for 12h at 35℃ by immobilized yeast and after fermentation for 18—20h by free yeast cells in mash; the utilization rate of starch has reached 89%.更多还原