花生根中白藜芦醇的提取

采用传统的溶剂浸提法提取白藜芦醇,以白藜芦醇的提取量为考察指标,进行正交试验,考察温度、乙醇浓度、液料比对白藜芦醇提取效果的影响。结果显示,乙醇浓度和料液比是影响白藜芦醇提取量的显著性因素。优化工艺参数为:温度70℃,乙醇浓度70%,液料比1∶20,提取时间1.5 h,该条件下,藜芦醇的得率为0.083%。该工艺稳定,可用于花生根中白藜芦醇的提取。

Research on Extraction Technology of Resveratrol from Roots of Peanut

The extraction technology of resveratrol from peanut roots was studied.The resveratrol was extracted by traditional solvent method and the content of resveratrol was used as inspect index.The four factors , including temperature, the ratio of solvent to material, time and the extraction concentration, were studied by orthogonal experimental design.The results showed that ethanol concentration and the ratio of solvent to material were chief factors for the extraction of the resveratro 1.The optimum extraction conditions were that the temperature was 70 ℃, the ethanol concentration was 70%, solvent to material ratio was 1：20, and the extraction time was 1.5 h.Under the optimum extraction condition , the ratio of resveratrol was 0.083%.This extraction technology could be used for the extraction of the resveratrol from peanut roots.