V2EX lignan

LIGNAN

定义 Definition

木脂素:一类天然存在于植物中的多酚类化合物,常见于亚麻籽、芝麻、全谷物、豆类与部分蔬果中。部分木脂素在人体肠道代谢后可形成类似雌激素作用的代谢物,因此常在营养学与植物化学语境中讨论。(该词也可泛指“木脂素类化合物”的总称。)

发音 Pronunciation (IPA)

/lnn/

词源 Etymology

lignan一词由与“木质/木材”相关的词根(lign-,可追溯至拉丁语 lignum “木头”)构成,用来命名一类常与植物木质部或细胞壁相关的天然产物。它与 lignin(木质素)在词形与词根上有关联,但在化学分类上是不同概念:lignin 是结构性高分子,lignan 多为相对小分子的植物次生代谢物。

例句 Examples

Flaxseed is rich in lignans.
亚麻籽富含木脂素。

Dietary lignans can be converted by gut bacteria into compounds that may influence hormone-related pathways.
膳食中的木脂素可被肠道菌转化为一些化合物,可能影响与激素相关的生理通路。

相关词 Related Words

文学与著作 Literary Works & Notable Appearances

  • The Oxford Companion to Food(常在食物成分与营养条目中提及木脂素/植物化学物)
  • Food Chemistry(教材/专著中讨论谷物、种子中的木脂素及其分析)
  • Encyclopedia of Human Nutrition(营养学参考书中涉及木脂素、肠道代谢与健康研究)
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