除虫菊蝋質物の不鹸化物成分
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概要
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Petroleum-ether extract of pyrethrum flowers concentrated to the commercial concentration is a brown liquid containing about 20% of pyrethrin. When it is allowed to stand for about one week, wax-like precipitate is formed as semi-solid masses at the bottom of the container. From the unsaponifiable matter, which were obtained from the above-mentioned wax-like precpitate, the author could isolate several substances such as β-amyrenol (β-amyrin), ceryl alcohol, hentriacontane, nonacosane or octacosane, and other substances.
- 社団法人 日本農芸化学会の論文