There are a few sugars that can not be effectively used by Saccharomyces cerevisiae in thedistillate of ethanol fermentation, mos of which are melibiose and cellobiose.

• 酒精发酵的糟液中含有一定量的糖未能被酿酒酵母有效利用,其中最多的是蜜二糖和纤维二糖。