出典:Wiktionary
出典:『Wiktionary』 (2025/11/30 17:13 UTC 版)
From Spanish quina "cinchona bark" (from which it is obtained), from Quechua kina.
quinic acid (countable and uncountable, plural quinic acids)
出典:Wikipedia
出典:『Wikipedia』 (2011/05/13 03:07 UTC 版)
Quinic acid is a cyclitol, a cyclic polyol. It is a crystalline acid obtained from cinchona bark, coffee beans, and other plant products and made synthetically by hydrolysis of chlorogenic acid. Quinic acid is also implicated in the perceived acidity of coffee. It is a constituent of the tara tannins.