[目的]研究不同生长产地、生长年限三七的不同部位(根、茎、叶)中三七总皂苷的变化规律,从而分析产地和生长年限对三七总皂苷的影响.[方法]采用紫外分光光度法测定三七药材中三七总皂苷的含量,测定波长为560 nm.[结果]虽然三七的根、茎、叶中的总皂苷的百分含量不同,但随着生长年限的增长都有一定量的增加.其中根部的总皂苷含量增加最为明显,平均每年增加量为46.5％,并在生长年限为2年时出现较大的波动性,茎部和叶内的总皂苷含量虽然都有所增加但增加的量不如根部明显,平均每年增加量分别为23.9％和33.9％,其中一年生三七的叶中总皂苷的含量有较大的波动性;三七根部的总皂苷含量是根、茎、叶3个部位中最高的.[结论]不同生长年限的三七和三七不同部位中三七总皂苷的含量存在明显差异.%[Objective] To determine the contents of total saponins of Panpax notoginseng (Burk. ) F. H. chen stems, leaves and roots at different growth ages in different production areas, and to analyze the effects of growth age and production area on the total saponins of P. notoginseng. [ Method] Contents of total saponins in P. notoginseng stems, leaves and roots were detected by UV spectrophotometry. And the detection wavelength was 560 nm. [ Result] Contents of total saponins in P. noUiginseng stems, leaves and roots enhanced with the increase of growth age. Among them, total saponins content in roots enhanced by 46.5% each year, which showed the most significant increase. Volatility was the most greatest in two-year-old P. notoginseng roots. At the same time, contents of total saponins in P. notoginseng stems and leaves enhanced by 23.9% and 33.9% each year, respectively. And total saponins content in one-year-old P. notoginseng leaves showed relatively great variation; the total saponins content in P. notoginseng roots was higher than those in P. notoginseng leaves and stems. [ Conclusion] There were differences in the total saponins contents in different parts of P. notoginseng at different growth ages.
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