【摘要】 采用甲醇加热回流提取香椿叶中黄酮,考察了甲醇浓度、回流时间、料液比对提取效果的影响。结果表明,最佳提取工艺为:甲醇浓度70%,料液比1∶30(g/m L),回流1 h。在此条件下,黄酮提取率6.67%。更多还原

【Abstract】 Extracting flavonoids by heating reflux method with methanol,the effect of extraction solvent concentration,extraction time and solid-liquid ratio on yield are researched. The result showed that the optimum process condition is 70% methyl alcohol,the extraction time of 1 h and solid-liquid ratio1∶ 30 g / m L. Under this condition,the yield of flavonoids is 6. 67%.更多还原