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探究多毛橐吾中总黄酮含量变化规律,期望寻出多毛橐吾最佳采摘时期。利用超声波辅助法提取不同采摘时期多毛橐吾中的总黄酮,在421 nm处测定其吸光度,计算出不同采摘时期多毛橐吾中总黄酮的含量。结果显示在5~7月采摘的多毛橐吾其总黄酮含量呈递增趋势,7月以后的多毛橐吾中总黄酮含量开始递减,直至9月末。其中6月30日~7月30日采摘的多毛橐吾总黄酮含量总体较高,最高点7月15日采摘的多毛橐吾中总黄酮含量达到2.200 mg/g。7月的多毛橐吾适宜采摘。
To investigate the variation of total flavonoids content in Morinda pubescens, we hope to find the best picking period of Morinda pubescens. Ultrasound-assisted extraction of total flavonoids in different harvesting period of Morinda cuspidatum, measured at 421 nm absorbance to calculate the different picking period Polygonum total flavonoids content. The results showed that the content of total flavonoids of S. japonicum picked from May to July showed an increasing trend. The content of total flavonoids began to decrease after July, until the end of September. Among them, the content of total flavonoids of H. polyphemus collected from June 30 to July 30 was generally high, and the total flavonoid content of A. maxima collected from the highest point reached 2.200 mg / g on July 15. July hairy 橐 吾 suitable for picking.