不同药用部位及不同采收期疏花荠苧总黄酮含量动态比较

Dynamic Comparison of Total Flavones Content in Various Parts of Mosla Dianthera Harvested in Different Seasons

目的:研究不同药用部位及不同采收期疏花荠苧总黄酮的含量变化,为确定疏花荠苧药材药用部位及最佳采收期提供依据。方法:采用分光光度法测定总黄酮含量。结果:不同采收期疏花荠苧药材总黄酮含量以9月为高;不同药用部位,叶中总黄酮含量明显高于茎、根。结论:建议疏花荠苧药材采收以9月地上部分为宜。

Objective： To study the content of fotal flavones in different parts of Mosla dianthera harvested in different seasons to pro- vide reference for the determination of optimal medicinal part and harvesting time of the plant. Methods： The total flavones content of M. dianthera was determined by TLC-UV. Results： The content of total fiavones extracted from the plant in September was highest, and that in the leaves was much higher than that in the stems or the roots. Conclusion： It is advisable to harvest the aerial parts of M. dianthera in September.