菊芋中菊粉不同提取工艺比较研究

采用常规水浴浸提法、超声波循环提取法、微波提取法提取菊芋中菊粉,结果表明:常规提取法的最佳条件为温度60℃,时间50min,料液比为1:30;超声提取法的最佳条件为温度60℃,时间40min,超声功率600W,料液比为1:20;微波提取法的最佳条件为微波处理8min,微波功率700W,料液比为1:15.常规水浴浸提法、超声波循环提取法和微波提取法的菊粉得率分别达75.68%、82.16%和87.81%.以微波提取法的菊粉得率最高.

Comparison of Different Inulin Extraction Technologies from Jerusalem artichoke

Three extraction methods including conventional water extraction, ultrasonic recycle extraction and microwave extraction method were tested to extract inulin from Jerusalem artichoke. The results showed that the optimum condition of the conventional water extraction method was 60℃, 40 min and 1 : 30 raw material/solution ratio, the optimum condition of the ultrasonic recycle extraction method was 600 W and 1 : 20 raw material/solution ratio and the optimum condition of the microwave extraction method was 700 W, 8 min and 1 :15 raw material/solution ratio. The inulin extraction rate of the conventional water extraction method, ultrasonic recycle extraction method and microwave extraction method was 75.68%, 82.16% and 87.81% respectively and the inulin extraction rate of the microwave extraction method was the highest among three extraction methods.