キササゲ中のカタルポシドおよびパラオキシ安息香酸の分析

概要

論文の詳細を見る
CATALPAE FRUCTUS, a traditional Japanese medicines used as a diuretic whose origin described in the Japanese Pharmacopoeia Fifteenth Edition (JP15), is the fruit of Catalpa ovata G. Don and C. bungei C. A. Mayer (Bignoniaceae). Detection of para-hydroxybenzoic acid and catalposide by thin layer chromatography (TLC) is an authorized method for identification of the drug; however, catalposide cannot be detected from some of the market samples by this method probably because of low content. In order to investigate catalposide content of the market samples, a method for quantitative analysis of the compound using HPLC was developed. The content of catalposide was shown to vary from 0% to 0.079% among the samples and seemed to be less in aged samples. Detection of catalposide by the TLC analysis was successful when its content was more than 0.01%.
2010-08-20