【摘要】 目的:分析云南境内不同岩白菜居群的熊果苷含量,筛选出优良种源和最佳利用部位。方法:应用HPLC,色谱柱SB-C18,流动相甲醇-水(15∶85),流速1 mL.m in-1,检测波长282 nm,柱温30℃。结果:同一居群的不同部位间熊果苷含量差异悬殊,叶片>叶柄>根>根状茎;不同居群的叶片中的熊果苷含量存在极显著差异,介于6.36%～1.51%;不同居群的根状茎中的熊果苷含量也存在极显著的差异,在1.72%～0.40%。结论:叶片是提取熊果苷的最佳部位;兰坪老君山居群是开发利用岩白菜中熊果苷资源的最优种源。更多还原

【Abstract】 Objective: To determine arbutin contents in different populations of Bergenia purpurascens in Yunnan province,for screening out the best resource and best part of B.purpurascens.Method: The SB-C18 column was used with methanol-water(15∶85)as the mobile phase,at the flow rate of 1 mL·min-1 and column temperature of 30 ℃,and 282 nm was selected as the detected wavelength.Result: There were much significant differences in arbutin contents among various parts of the same B. population.The sequence of parts from high to low was lamina>petiole >root >rhizome.Arbutin contents in laminae of different B.populations were different at the most significant level and varied between 6.36% and 1.51%.Arbutin contents in rhizomes of different B.populations were also dignificantly different at varied between 1.72% and 0.40%.Conclusion: Lamina is the best part for extracting arbutin.B.population distributed in Laojunshan mountain in Lanping county is the best resource for arbutin exploitation in B.purpurascens.更多还原