Studies on the Constituents of Rice Bran Oil. I. Isolation of Phenolic Substances.
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概要
- 論文の詳細を見る
Tsuchiya and Kaneko^<1)> had isolated a substance exhibiting ultraviolet absorption maxima (in heptane) at 231,290,and 315mμ from rice bran oil and named it oryzanol. Utilizing the fact that oryzanol is a phenolic substance, the rice bran oil removed of free fatty acids by sodium carbonate in dichloroethane solution was passed through an alumina column and the adsorbed phenolic substance was eluted. This phenolic substance, as an ether solution, was purified by transiting to potassium hydroxide solution and further recrystallized to crystalline oryzanol. This was acetylated and fractionally recrystallized from ethyl acetate, separating into three kinds of substances. The most sparingly soluble portion was in a minute amount but the other two liberated phenolic substances on deacetylation. These were designated as oryzanol-A and -B.
- 公益社団法人日本薬学会の論文
- 1957-02-20
著者
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笹原 慎一郎
Daichi Seiyaku Co. Ltd.
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太田 元吉
第一製薬研究所
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太田 元吉
Yanagishima Research Laboratory, Daiichi Seiyaku Co., Ltd.
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清水 正夫
Yanagishima Research Laboratory, Daiichi Seiyaku Co., Ltd.
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北原 深一
Yanagishima Research Laboratory
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角尾 元三
Daichi Seiyaku Co., Ltd.
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角尾 元三
Daichi Seiyaku Co. Ltd.
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