【摘要】 目的从3种常用提取方法中选择一种提取赶黄草中槲皮素的最佳方法。方法选择紫外分光光度法,以槲皮素含量为指标,分别对回流法、超声法、浸溃法3种常用提取方法对赶黄草药材的提取效果进行比较。结果槲皮素在2.72~10.86μg/mL时浓度与吸光度线性关系良好;回流法、超声法、浸溃法3种提取方法的提取效率分别为1.11%、1.01%、0.8%。结论该研究条件下赶黄草中槲皮素的最佳提取工艺为回流法。更多还原

【Abstract】 Objective To select optimum extraction process of quercetin glycoside from Penthorum chinense Pursh from3 common extractions methods. Methods Ultraviolet(UV) spectrophotometry was used to compare the extraction effects of Penthorum chinense Pursh by 3 common extraction methods of reflux method,ultrasonic method and cold-maceration with the content of quercetin glycoside as index. Results The concentration and absorbance were in good linear relationship when the quercetin glycoside was within 2.72-10.86 μg/mL. Extraction ratios were obtained as follows:1.11%,1.01% and 0.8% respectively for reflux method,ultrasonic method and cold-maceration. Conclusion The study demonstrates that the best extraction process for quercetin glycoside from Penthorum chinense Pursh is reflux method.更多还原