超声波提取野玫瑰色素及体外抗氧化性分析

摘要

Using analysis of single factor experiment and orthogonal experiment design , ultrasonic assisted ex-traction process conditions of wild rose pigment, studies the ultrasonic power, processing time, leaching tem-perature effects on wild rose pigment extraction efficiency. The results showed that the wild rose pollen grain size was 60 mesh, 10 times the petals of 50%ethanol as the solvent, ultrasonic assisted extraction of wild rose pig-ment yield is higher. Determine the ultrasonic assisted extraction of wild rose pigment's the best extraction con-ditions:20 min, leaching temperature 40℃, ultrasonic power 300 W. Wild rose pigment DPPH free radicals and·OH scavenging effect is obvious, and has good ability to restore.%采用单因素试验分析和正交试验设计,研究超声波辅助提取野玫瑰色素的工艺条件,研究了超声波功率,处理时间,浸提温度对野玫瑰色素的提取效率的影响.结果表明:野玫瑰花粉颗粒大小为60目,10倍花瓣的50%乙醇为溶剂,超声波辅助提取野玫瑰色素得率较高.确定了超声波辅助提取野玫瑰色素的最佳的提取条件是:处理20 min,浸提温度40℃,超声功率300 W;野玫瑰色素DPPH自由基和·OH清除作用明显,且具有较好的还原能力.