所谓油性大,就是食物的脂肪含量高.食物中的脂肪,在口腔内并不发生结构的变化,因唾液中没有分解脂肪的酶.胃液中虽含有少量的脂肪酶,但只是水解性脂肪酶,不会对脂肪产生乳化作用,而脂肪不 The so-called oily, is the high fat content of food.Fat in the diet, the structure does not occur in the oral changes, because there is no decomposition of fat in the saliva enzyme.Although gastric juice contains a small amount of lipase, but only hydrolytic lipase , Will not produce fat emulsification, and fat is not