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从中药油炸马钱子(Strychnos nux-vomica L.)中分离得到10个生物碱类化合物.通过波谱分析,分别鉴定为士的宁(1)、士的宁氮氧化物(2)、马钱子碱(3)、马钱子碱氮氧化物(4)、诺弗新(5)、依卡精(6)、异士的宁(7)、异马钱子碱(8)、异马钱子碱氮氧化物(9)、异士的宁氮氧化物(10).为其潜在的药理活性研究提供物质基础. 相似文献
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To explore the effect of particle size on the quality uniformity and in vitro release performance of Strychnosnux-vomica powder, seven samples of Strychnos nux-vomica powder with different particle sizes were prepared.Microstructures and particle sizes were analyzed, and high performance liquid chromatography （HPLC） was used totest the contents and in vitro release performances of brucine and strychnine in the samples. Results showed that thecontents and the in vitro release rates of brucine （or strychnine） in different samples were different since there aredifferent proportions of endosperms to epidermal cells in Strychnos nux-vomica powder with different particle sizes.Brucine and strychnine in each sample were promptly released in the first ten minutes and their cumulative releaserates were higher than 70% after ten minutes. Eighty minutes later, the cumulative release rate tended to be a constant.Considering the quality uniformity and safety of Strychnos nux-vomica powder used as traditional Chinese medicine, itwould be better to control the particle size of Strychnos nux-vomica powder between 100 and 140 mesh in which themaximum cumulative release rate in vitro of brucine and strychnine can be relatively low within this range. 相似文献
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