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近来银杏的药用功能及其成分引起了普遍关注。诸多报道证明银杏含有一些独特的化学成分,如黄酮类、双黄酮类以及几种高氧倍半萜、二萜类物质等。上述化合物大多是银杏的有效成分。纵观已发表的文献,尚未发现对银杏萜类化合物,即银杏苦内酯A、B、C、G-A、G-B、G-C和白果内酯(BB)的定量测定方法的报道。 Lobstein-Guth等发表了银杏苦内酯的HPLC分离法,但该法不适于银杏叶中定量测定这些化合物。Teng发表的色层分离谱因没有详述材料,他人难以重复。Komoda等人的方法过于繁琐,而且没有定量试验。最近Wagner等人发表了一个错误的TLC法来测定植物药中银杏苦内酯。由此更引起对银杏
Recently, the medicinal functions of Ginkgo biloba and its components have attracted widespread attention. Many reports have proven that Ginkgo biloba contains some unique chemical components, such as flavonoids, biflavonoids, and several high-oxygen sesquiterpene and diterpenoids. Most of the above compounds are effective components of Ginkgo biloba. Throughout the published literature, no report has been found on quantitative determination methods for ginkgo glycosides, namely Ginkgo Bilactone A, B, C, G-A, G-B, G-C and bilobalide (BB). Lobstein-Guth et al. published the HPLC separation method for ginkgolide, but this method is not suitable for the quantitative determination of these compounds in Ginkgo biloba leaves. The color separation spectrum published by Teng has not been described in detail because it is difficult for others to repeat. The method of Komoda et al. is too cumbersome and there is no quantitative test. Wagner et al. recently published an incorrect TLC method for the determination of ginkgolides in plant drugs. This is more caused by the ginkgo