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日本的草药—1 当药当药最早收载于《和汉三方图鉴》(1712年) 野草部分,为龙胆科植物,深秋开花时采集的干燥全草.主要成分为苦味苷—当药苦甙占2～10%、当药甙、龙胆苦甙,苦杏甙等强苦味成分。还有赤鲜红氨基乙酸、齐墩果酸、黄酮类以及氧杂蒽酮类衍生物等。据认为苦味成分有刺激味觉,从而增进食欲、加速胃蠕动、促进胃液分泌等作用;然而,未得到动物试验证明.
Japanese Herbs—1 Herbal Medicine was first included in the Weed and Tripartite Illustrated Book (1712). Weeds, a plant of the genus Gentiana, was collected in the late autumn to dry the whole plant. The main ingredient was bitterin – when the drug was bitter The wolfberry accounts for 2 to 10% of the strong bitterness ingredients such as medlar, gentian bitter buckwheat, and bitter apricot kernel. There are red and bright red glycine, oleanolic acid, flavonoids and xanthone derivatives. It is believed that bitter components have a stimulatory taste sensation, thereby promoting appetite, accelerating gastric motility, and promoting the secretion of gastric juice; however, no animal experiments have been shown.