【摘要】 文中对米曲霉液态发酵豆粕制备大豆肽发酵液进行了研究。以发酵液中大豆肽转化率为指标,研究豆粕浓度、碳氮比(C/N)、发酵温度和发酵时间对其影响。正交试验确定最佳的发酵条件,即豆粕浓度为3%、C/N为14、发酵温度为30℃、发酵时间为46h,得到的大豆肽发酵液大豆肽转化率达到55.6%。所得的大豆肽分子量分布在204u~1335u之间的百分比为43.28%。更多还原

【Abstract】 Fermentation soybean peptide liquid was produced by Aspergillus oryzae A-9005 with fermented soybean meal.The effects of soybean meal concentration,carbon nitrogen ratio(C/N),and fermentation temperature and time on fermentation were studied.The optimal fermentation conditions were obtained by orthogonal experiments as follows: soybean meal content 3%,C/N 14,fermentation temperature 30℃ and fermentation time 46h.Under these conditions,the conversion rate of soybean peptide in the fermentation liquor reached 55.6%.The percentage of molecular weight of soybean peptide was 43.28%,which distributed from 204u to 1335u.更多还原