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期 刊 ：中国中药杂志 1999年 24卷 03期 页码：150.

关键词：决明子；煎煮时间；蒽醌类浸出量；

Keywords:cassia seeds, decocting time, amount of anthraquinone,

摘 要 ：目的：研究煎煮时间对决明子中蒽醌类浸出量的影响。方法：用分光光度法测定不同煎煮时间的决明子（分整粒和１２目粗粉两种）煎液中蒽醌类的含量。结果：决明子煎液的吸收度 煎煮时间曲线分为非线性快速浸出区、线性低速浸出区及浸出停滞区；将决明子适当粉碎有利于蒽醌类浸出。结论：决明子中蒽醌类煎出最佳时间应为非线性快速浸出区的终了时间，且第２煎不可弃之。

Abstract:Objective:To study the influence of decocting time on the amount of anthraquinone diffused from the cassia seeds.Method:The amount of anthraquinone in the decoctions made in different lengths of decocting time was determined by spectrophotometry (for intact seeds and powdered seeds).Result:Fast nonlinear diffusion district,slow linear diffusion district and ceasing diffusion district were shown on the light absorption decocting time curves,and appropriate smashing of the cassia seed facilitated the diffusion of anthraquinone.Conclusion:The best decocting time for anthraquinone to diffuse from the cassia seeds should be the ending time of the fast nonlinear diffusion district,while the se cond decoction should not be given up.

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