摘要
啤酒生产中偶然会出现双乙酰峰值高的现象,可通过添加α-乙酰乳酸脱羧酶加以解决,可在发酵液中添加,也可在清酒中添加。发酵液中加量为10g/t,清酒中加量为5g/t。应用试验表明,α-乙酰乳酸脱羧酶对降低双乙酰峰值,减少双乙酰含量及缩短发酵周期,效果是好的,但其对酵母的双乙酰还原能力有钝化作用,不能滥用,只能作为发酵异常的补救措施。(一平)
High peak value of biacetyl occurred incidentally in beer brewing.The addition ofα-acetolactate decarboxylase could settle this problem.The addition could be operated in fermented liquid or in clear beer.The addtion quantities in fermented liquid and clear beer were10g/t and5g /t respectively.The applicable tests indicated thatα-acetolactate decarboxylase had satisfactory functions in decreasing peak values of biacetyl,reducing biacetyl content and shortening fermentation periodicity,and because of its passivation ef-fects on the deoxidation capability of acetyl,it could not be misapplied and only could be applied as remedial measure for abnormal fermentation.(Tran.by YUE Yang)
出处
《酿酒科技》
2003年第2期62-62,共1页
Liquor-Making Science & Technology
