Then they add a substance usually harvested from veal stomachs called rennet, a mixture of enzymes that slice the ends off caseins, a kind ofmilkprotein.
这种物质一般从小牛的胃中采集而来，里面含有的多种酶能够切断牛奶中的一种蛋白——酪蛋白的水溶性末端。
2
As a result of this dilution the milk has a lower protein concentration.
由于牛奶被稀释，牛奶中的蛋白质含量变低。
3
1-2 scoops of a protein supplement in low fat milk or water.