V2EX lactose

Lactose

释义 (Definition)

乳糖:一种主要存在于牛奶及乳制品中的糖类(双糖),由葡萄糖半乳糖组成。常见相关概念还有乳糖不耐受(人体缺乏足够乳糖酶,导致消化不适)。

发音 (Pronunciation)

/lk.tos/

例句 (Examples)

Lactose is the natural sugar found in milk.
乳糖是牛奶中天然存在的糖。

Some people avoid lactose because they feel sick after eating ice cream or drinking milk.
有些人会避开乳糖,因为他们在吃冰淇淋或喝牛奶后会感到不舒服。

词源 (Etymology)

lactose 来自 **lact-**(源于拉丁语 lac, lactis,意为“牛奶”)加上化学名词常见后缀 -ose(常用于“糖类”名称,如 glucose 葡萄糖、fructose 果糖),字面意思就是“牛奶里的糖”。

相关词 (Related Words)

文学作品用例 (Literary Works)

  • On Food and Cooking: The Science and Lore of the Kitchen Harold McGee(书中多处讨论乳制品成分与lactose在烹饪与风味变化中的作用)
  • The Omnivore’s Dilemma Michael Pollan(涉及现代饮食与加工食品时,会提到乳制品与糖类成分,包括lactose
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