mother culture

• 母发酵剂,种子酵母,种曲

mother culture的用法和样例：

例句

1. The activity and acid - producing ability of mother culture are the main conditions of culture preservation and transfers of yoghurt production.
   母发酵剂的活性以及产酸性能是酸奶生产菌种保存与扩培的根本条件。