重庆垫江牡丹皮主要有效成分多维动态分析

目的：研究多种因素引起垫江牡丹皮中丹皮酚和芍药苷2种主要有效成分的动态变化规律,确定垫江牡丹皮主要有效成分动态特征,探索垫江牡丹皮的适宜种植条件和质量控制措施。方法：HPLC测定丹皮酚和芍药苷含量,并对其随着不同海拔高度、不同土壤条件、不同生长年限、不同采收季节的变化规律进行多维动态分析。结果与结论：不同生长海拔高度、不同生长年限和不同采收季节采集,垫江丹皮中丹皮酚、芍药苷及酚苷比值存在明显的动态变化规律。海拔400～800 m均适宜种植药用牡丹,但600 m种植的牡丹皮中丹皮酚和芍药苷含量最高。3种土壤比较表明,矿子黄泥为最适宜土壤,丹皮酚和芍药苷含量最高。从三年生至五年生丹皮酚和芍药苷含量逐年提高,四年生、五年生牡丹均适宜采收牡丹皮,但五年生最佳。采收期从8～11月丹皮酚含量呈抛物线型变化,10月最高,芍药苷亦呈积累趋势,但10月以后积累速度显著下降,11月比10月几乎没有增加,垫江牡丹皮的最佳采收季节为10月上中旬。丹皮酚与芍药苷含量的比值(简称酚苷比值)是垫江丹皮的重要质量特征。

Dynamic analysis of major active ingredients of Cortex Moutan cultivated in Dianjiang county of Chongqing

Objective: To study the change of paeonol and paeoniflorin, the two major active ingredients contained in Cortex Moutan cultivated in Dianjiang county of Chongqing, due to the change of some influence factors, and explore suitable plant conditions and quality cotrol methods of Cortex Moutan. Method: Paeonol and paeoniflorin were determined by HPLC in samples from Dianjiang. Result and conclusion: The ratio of paeonol and paeoniflorin in Cortex Moutan was regularly influenced by altitude, the growth years and harvest time.Cortex could be cultivated at altitude of 400 m to 800 m but 600 m is the best aria because of the peak of the percentage composition of paeonol and paeoniflorin at 600 m. The first and middle third of October in the fifth year is the best picking time of Cortex Moutan because of the maximum of the percentage composition of paeonol and paeoniflorin.