当我们喝牛奶时,你想过没有,这些牛奶是怎么来的?你可能会说,牛奶是从牛身上挤出来的呀。可是牛吃的明明是草,是富含纤维素的食品,为什么会产出高蛋白的牛奶呢?原来,青草变牛奶,是微生物和它们所分泌的酶的功劳。 When we drank milk, did you think about it, how did these milk come from? You might say that milk came from the cow. However, the cow is obviously eating grass, is a food rich in cellulose, why it produces high-protein milk? Originally, grass changed milk, is the microbes and enzymes secreted by their credit.