孜然超声波辅助提取及其抗氧化性研究

Study on Ultrasonic Assisted Extraction of Cumin and Its Antioxidant Activity

文章主要研究了孜然超声波辅助提取及其抗氧化性。采用响应面法对提取试验进行优化,得到最佳工艺参数为:粉碎粒径0.3mm,提取时间1.04h,料液比1∶12(g/mL),在此工艺条件下,孜然提取物的得率为4.51%。孜然提取物在浓度2~10mg/mL范围内对DPPH自由基清除率及·OH清除率随着提取物浓度的增加呈现逐渐增大的变化趋势,浓度达10mg/mL时,孜然提取物对·OH清除率为75.6%。

The ultrasonic assisted extraction of cumin and its antioxidant activity are studied,the extraction test is optimized by response surface method,the results show that the optimum process parameters are as follows：the particle size is 0.3 mm,the extraction time is 1.04 h,the ratio of material to liquid is1∶12（g/mL）,under the optimal conditions,the cumin extractioin yield is 4.51%.The scavenging rates to DPPH radical and ·OH are increasing with cumin extract concentration in the range of 2～10 mg/mL.When the extract concentration is 10 mg/mL,its scavenging rate to·OH is 75.6%.