カポック油中に含まれるシクロプロペン酸について : カポック油に関する研究 (第1報)

概要

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Authors investigated the determination of cyclopropenoid fatty acid contained in kapok seed oil and could obtain satisfactory result with the following procedure.<BR>The sample oil dissolved in benzene-acetic acid was reacted with a 0.1 N solution of hydrogen bromide in acetic acid and the excess of hydrogen bromide was back titrated with 0.1 N solution of sodium carbonate in acetic acid. The content of cyclopropenoid fatty acid in crude kapok seed oils was found usually at 1214%. Both bleaching and deodorization processes tended to decrease the amount of cyclopropenoid fatty acid with increase of conjugated diene. Lager amount of earth used in the bleaching process resulted in the more extensive opening of cyclopropenoid ring. The decrease of cyclopropenoid fatty acid was also followed by infrared spectrophotometry.
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