不同生长年限重庆庙党3种成分的动态变化

目的 研究不同生长年限重庆庙党3种活性成分的动态变化，为庙党的标准化种植、采收及质量控制等提供参考。方法 采用UV方法测定取1～5年生重庆庙党多糖及总皂苷的含量变化，采用HPLC方法测定党参炔苷的含量变化。结果 重庆庙党1～4年生长过程中，多糖含量随着生长年限的增加而增大，与第1年比较，第4年增长约100%，第5年增长约90%（第5年与第4年比较，负增长10%）；总皂苷及党参炔苷呈逐年递增趋势，第5年总皂苷合计增长约57%，党参炔苷合计增长约42%。重庆庙党生长过程中多糖、总皂苷及党参炔苷三者含量无明显相关性。结论 考虑活性成分的增长趋势、生产成本、生产效率、药材产量等因素，重庆庙党种植4年采收即可。

Study on Dynamic Changes of Three Components of Miaoyu Codonopsis Pilosula at Different Growth Stages

OBJECTIVE: To study the dynamic changes of three active components of chongqing miaoyu codonopsis pilosula with different growth years, and to provide references for the standardized planting, harvesting and quality control.METHODS:UV method was used to determine the content of polysaccharides and total saponins,and HPLC method was used to determine the content of lobetyolin.RESULTS: In 1~4 years, the content of polysaccharide increased with the increase of growth years.Compared with first year, the content of polysaccharide in fourth year increased about 100%.However,compared with the fourth year, the content decreased about 10% in fifth year. In 1~5 years, the total saponins and the glycosides of codonopsis pilosula increased year by year, compared with first years, total saponins increased by about 57% and lobetyolin increased by about 42% in fifth years. The content growth of polysaccharides, total saponins and lobetyolin were not significantly correlated. CONCLUSION: According to the growth trend of active ingredients, production cost, production efficiency and yield of medicinal herbs, chongqing miaoyu codonopsis pilosula should be harvested after 4 years'' growth.