下面是美国官方对活性干酵母的定义:
96.2 Active Dry Yeast is yeast which has been dried in such a manner as to preserve a large portion of its fermenting power. It must contain no added cereal or filler and must contain not less than 15 billion live yeast cells per gram. (Adopted 1951)
INF 7-05-524 Yeast active dehydrated
而营养性酵母,按照我的理解不正是11楼libiao公司所卖的产品吗?我很诧异,他自己竟然说不知道?!