Yellow medicine - Ouyakushi

Japanese: 黄薬子 - おうやくし
Yellow medicine - Ouyakushi


[Use of Dioscorea genus plants]
Cultivated yams are 70-80% starch by dry weight, and are an important staple food in potato-farming areas, and also an important starch source for hunter-gatherers. Many yams, such as Ouyakushi (originally known as Cashuimo), Shiyoriyo ( D. cirrhosa Lour.), and Nagaimo (Chinese yam), are used in traditional Chinese medicine, and sapogenin extracted from D. mexicana and other species grown in Central America is used as a raw material for producing steroid hormones such as progesterone and cortisone. The rhizomes, which contain a large amount of saponin, are also crushed and used for laundry and for deworming lice.

*Some of the terminology explanations that mention "Huang Yaozi" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:


[ヤマノイモ属植物の利用]
 栽培ヤマノイモ類は乾物重量の70~80%がデンプンで,いも農耕地帯では重要な主食とされるし,狩猟採集民にとっても大切なデンプン源植物であった。 漢方薬では黄薬子(おうやくし)(原植物カシュウイモ),薯良(しよりよう)(ソメモノイモD.cirrhosa Lour.),山薬(ナガイモ)など多くのヤマノイモ類が利用されているし,またステロイド系ホルモンのプロゲステロンやコーチゾンなどの生産の原料として中米産のD.mexicanaやその他の種から抽出されるサポゲニンが利用されている。またサポニンを多量に含む根茎をつき砕き,洗濯や,シラミなどの駆虫に利用することもあった。…

※「黄薬子」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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