食品科学2012，Vol.33Issue(4)：18-21,4.
正交试验法优化超声提取枣核总黄酮
Optimization by Orthogonal Array Design of Ultrasonic Extraction of Total Flavonoids from Chinese Date Seeds
摘要
Abstract
Objective： The optimal conditions for ultrasonic extraction of total flavonoids from Chinese date seeds were investigated by orthogonal array design. Methods： The content of total flavonoids was determined spectrometrically using rutin as reference substance. The effects of ultrasonic power, extraction time, material/liquid ratio, ethanol concentration on the content of total flavonoids in extracts were investigated by one-factor-at-a-time method, and the extraction conditions were optimized by orthogonal array design. Results： Ethanol concentration and ultrasonic power were the key factors that affect the extraction of total flavonoids. The optimal extraction conditions were obtained as follows： ultrasonic power 450 W, treatment time 30 min, material/liquid ratio 1：50 and ethanol concentration 50%. Under these conditions, the extraction yield of crude total flavonoids from Chinese date seeds was 7.04% and the content of total flavonoids in crude extracts 1.59%. Conclusion： The optimized process remarkably increases the extraction yield of total flavonoids from Chinese date seeds and has a promising prospect for practical applications.关键词
正交试验法/超声/提取/枣核/总黄酮Key words
orthogonal array design/ultrasonic/extraction/Chinese date seeds/total flavonoids分类
农业科技引用本文复制引用
张吉祥,欧来良..正交试验法优化超声提取枣核总黄酮[J].食品科学,2012,33(4):18-21,4.基金项目
河北省教育厅青年基金项目 （）
