美蔷薇果色素提取工艺条件探索

Research on the Pigment Extract of Rosa bella Rehd et Wils Fruits

实验研究了以美蔷薇果为原料 ,常用溶剂浸提色素的工艺。在实验中用L16(45)正交实验法对色素提取的最佳条件进行探讨 ,对提取温度、时间、溶剂酸度、溶剂浓度、料液比等因素在 4个不同水平上进行优选实验 ,以吸光度作为衡量提取量的指标。通过实验筛选出最佳浸提剂为乙醇 ,最佳提取工艺条件为 :温度 5 0℃ ,时间 6h ,pH 5 ,乙醇浓度 80 % ,料液比 1∶7。

We studied the pigment extract process from Rosa bella Rehd. et Wils fruits,tested the main effective factors for the extraction such as temperature, material persistence time in solvent, the concentration of solvent, and the ratio of material and solvent.The best procedure we had selected is,extract by 80% ethanol at 50℃,pH 5,the ratio of material and solvent is 1∶7.