山楂皮渣中总黄酮的超声波辅助提取工艺研究

Optimization of ultrasonic extraction of total flavonoids from hawthorn pomace

为充分利用山楂资源,以山楂酒生产剩余的皮渣为试验材料,乙醇溶液为提取溶剂,采用正交试验优化山楂皮渣中总黄酮的超声波辅助提取工艺条件。结果表明,山楂皮渣中含有大量的黄酮类化合物,应用超声波辅助提取技术可实现其中总黄酮的快速提取。在100 W超声功率下山楂皮渣中总黄酮的最佳提取工艺条件为:乙醇体积分数为60%、料液比1/10、提取时间30 min、提取温度80℃、提取次数4次,山楂皮渣中总黄酮的提取得率可达到4.41%。

W ith the aim ofm aking fulluse ofhaw thorn,using haw thorn pom ace w hich w asthe by-productofhaw thorn w ine m aking industry asm ate-rial,the optim alcondition forultrasonic extraction oftotalflavonoids from haw thorn pom ace w as investigated by orthogonaltestw ith ethanolas ex-traction solvent.R esults show ed thatthere w ere large am ounts offlavonoids in haw thorn pom ace,and the flavonoids could be extracted easily from haw thorn pom ace using ultrasonic-assisted technology.The optim um condition for totalflavonoids extraction from haw thorn pom ace atultrasonic pow er100 W w as ethanolconcentration 60% ,solid-liquid ratio 1/10,extraction tim e 30 m in,tem perature 80 ℃ and extraction tim es 4.U nder the optim alextraction condition,the yield oftotalflavonoidsfrom haw thorn pom ace w as4.41% .