单词lactase
n.: 【生化】乳糖酶
网络: 乳糖酵素；乳糖分解酵素；乳糖脢
【生物化学】乳糖酶
乳糖分解酵素
Many Asian adults are lactose intolerant, as a result of a lack of the digestive enzyme lactase in the gut.
许多亚洲成年人有乳糖不耐受症，因为他们消化道中缺乏消化乳糖的乳糖酶。
One example of such a gene is lactase, which helps people digest milk.
举个例子，例如此类基因中的乳糖分解酵素，能够帮助人们消化牛奶。
Therefore, due to the lack of lactase, as well as magnesium, calcium milk in fact the net absorption rate was not high.
所以，由于乳糖酶缺乏，以及镁，钙，实际上净吸收率不高的牛奶。
If the intestinal tracts does not contain sufficient lactase, consumption of a high level of milk may cause diarrhea.
如果小肠短文不包含充足的乳糖酶，消耗量高级牛奶也许导致腹泻。
But adult cats don"t have much lactase, the enzyme needed to break down the lactose sugar in milk.
但是，由于成年猫体内并没有太多乳糖酶，因此无法完全消化牛奶中的乳糖。
The ability to digest milk as adults, and as infants, actually, is due to the expression of an enzyme called lactase.
实际上，对于小孩子和成年人来讲，当身体内表达一种叫乳糖酶的蛋白时，他们才能消化牛奶。
As a consequence, more of their descendents survived and bore the variant lactase gene.
其结果是，他们的更多后代生存了下来，携带着乳糖基因的这个变种。
Some persons with normal lactase activity may become symptomatic on consumption of products containing lactose.
有些人的活动与正常乳糖酶症状就可能成为消费的产品含有乳糖。
Sweden has one of the world"s highest percentages of lactase tolerant people.
其中瑞典为乳糖耐受性比例最高的国家。
However, the absorption rate of yogurt than in milk is high, especially for those who lack lactase.
然而，比牛奶酸奶的吸收率高，特别是对那些缺乏乳糖酶谁。