Froth consisting of yeast cells together with the carbon dioxide they produce in the process of fermentation, present in or added to fruit juices and other substances in the production of alcoholic beverages.

• 发酵剂一种由酵母细胞及其在发酵过程中产生的二氧化碳组成的泡沫，它们存在于或被加入果汁或其它用来制造酒精饮料的物质中