【摘要】 采用水浴回流提取法,研究了不同提取剂、提取剂浓度、固液比、提取时间和提取温度对新鲜野生水芹(Oenanthejavanica(Bl.)DC.)中黄酮类物质提取率的影响规律。经正交试验,得到野生水芹黄酮类物质提取工艺的最佳参数为:用90%乙醇于80℃水浴回流提取6h,其中野生水芹叶片料液比为1g∶10mL,叶柄料液比为1g∶5mL。叶片提取率可达2.643mg/g,叶柄提取率可达0.586mg/g。更多还原

【Abstract】 The extracting condition of flavonoids from fresh leaves and petioles of wild water dropwort(Oenanthe javanica (Bl.) DC.)was analyzed. The experimental factors were studied, such as extractant, extractant concentration, solid liquid ratio, extraction time and extraction temperature.Then the optimal parameters were obtained with orthogonal test. The result showed that 1 g∶10 mL of leaf weight to 90% alcohol solution, and 1 g∶5 mL of petioles weight to 90% alcohol solution, extracting with water bath at 80 ℃ for 6 h, and extraction efficiency reached 2.643 mg/g for leaf, and 0.586 mg/g for petioles.更多还原