响应面法优化从菊芋中浸提菊粉的工艺条件研究

Optimization of Inulin Extraction Process from Jerusalem artichoke Tubers by Response Surface Methodology

温度、浸提时间、液固比和pH值是影响菊粉浸提得率的几个重要因素。本实验通过响应面法分析,在自然pH值、液固比为10.56:1(V/W)、76.7℃下热水浸提20min,菊粉的提取率可以达到最大值83.6%。

The effects of temperature, time, solvent-solid ratio and pH on extraction rate of inulin from Jerusalem artichoke Tubers were discussed. By response surface methodology （RSM） the optimal extraction conditions of inulin are as follows： natural pH, time 20 min temperature 76.7 ℃ and solvent-solid ratios of 10.56：1 （V/W）. Under these conditions, the extraction rate of the inulin reaches the maximum, 83.6%.