出典:Wiktionary
infinitive | līġnan | līġnenne |
---|---|---|
indicative | present | past |
1st-person singular | līġne | līġnede |
2nd-person singular | līġnest | līġnedest |
3rd-person singular | līġneþ | līġnede |
plural | līġnaþ | līġnedon |
subjunctive | present | past |
singular | līġne | līġnede |
plural | līġnen | līġneden |
imperative | ||
singular | līġne | |
plural | līġnaþ | |
participle | present | past |
līġnende | (ġe)līġned |
出典:Wikipedia
出典:『Wikipedia』 (2011/06/04 13:34 UTC 版)
The lignans are a group of chemical compounds found in plants. Lignans are one of the major classes of phytoestrogens, which are estrogen-like chemicals and also act as antioxidants. The other classes of phytoestrogens are the isoflavones and coumestans. Plant lignans are polyphenolic substances derived from phenylalanine via dimerization of substituted cinnamic alcohols (see cinnamic acid), known as monolignols, to a dibenzylbutane skeleton 2. This reaction is catalysed by oxidative enzymes and is often controlled by dirigent proteins.