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采用超声辅助溶剂法提取石榴皮总皂苷。以石榴皮总皂苷含量为考察指标,研究了超声时间、超声频率、超声功率及料液比这四个因素对总皂苷含量的影响。选用L9(34)正交表进行正交实验,确定石榴皮总皂苷超声提取的最佳工艺条件为:超声功率400W,超声时间60min,料液比1:60,超声波工作:间歇时间8:6。在最优因素水平组合条件下,齐墩果酸提取率为1.738mg/g。
Ultrasound - assisted extraction of pomegranate skin total saponins. Taking the total saponin content of pomegranate peel as index, the effects of ultrasonic time, ultrasonic frequency, ultrasonic power and solid-to-liquid ratio on total saponin content were studied. Orthogonal test of L9 (34) orthogonal table was used to determine the optimum conditions for ultrasonic extraction of total saponins from pomegranate peel: ultrasonic power 400W, ultrasonic time 60min, ratio of material to liquid 1:60, ultrasonic working time 8: 6 . Under optimal combination of factors, the extraction rate of oleanolic acid was 1.738mg / g.