出典:Wiktionary
出典:『Wiktionary』 (2026/05/01 21:53 UTC 版)
From coumarou (“tonka bean, Dipteryx odorata (syn. Coumarouna odorata)”) + -in, or from French coumarine.
coumarin (countable and uncountable, plural coumarins)
出典:Wikipedia
出典:『Wikipedia』 (2011/07/24 03:12 UTC 版)
Coumarin (2H-chromen-2-one, pronounced /ˈkuːmərɪn/) is a fragrant chemical compound of benzopyrone found in many plants, notably in high concentration in the tonka bean (Dipteryx odorata), vanilla grass (Anthoxanthum odoratum), sweet woodruff (Galium odoratum), mullein (Verbascum spp.), sweet grass (Hierochloe odorata), Cassia cinnamon (" Cinnamomum aromaticum") and sweet clover. The name comes from a French word, coumarou, for the tonka bean. It has a sweet odor, readily recognised as the scent of newly-mown hay, and has been used in perfumes since 1882. Sweet woodruff, sweet grass and sweet clover in particular are named for their sweet smell, which is due to their high content of this substance. It has been used as aroma enhancer in pipe tobaccos and certain alcoholic drinks, although it is generally banned as a flavorant food additive, due to concerns about hepatotoxicity coumarin causes in animal models. In high concentrations in foods, coumarin is a somewhat bitter-tasting appetite suppressant, and is probably produced by plants as a defense chemical to discourage predation.