单词	rennin
释义	rennin /ˈrɛnɪn / noun [mass noun] An enzyme secreted into the stomach of unweaned mammals causing the curdling of milk.Animal rennet contains the digestive enzyme rennin, which curdles milk in the normal process of digestion.... A report on the effect of spices on digestive enzymes mentioned that freshly prepared 1 per cent emulsion of asafoetida in water affected the activity of pepsin, trypsin and rennin in saliva to a small extent 41. In 1990, the FDA approved the first bioengineered enzyme, rennin, which traditionally has been extracted from calves' stomachs for use in making cheese. Origin Late 19th century: from rennet + -in1.
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