选用油莎豆粕为原料提取水溶性多糖。以提取率为评价指标,对提取温度、提取时间、料液比进行研究,在单因素试验的基础上,利用Box-Benhnken中心组合设计原理对实验进行优化,通过响应面分析,确定提取的较佳工艺为浸提温度为82℃,浸提时间为3.9 h,料液比为1∶20 g/mL。在此条件下,水溶性多糖提取率10.36%。
Cyperus esculentus meal was raw material for extracting water-soluble polysaccharide.The extraction rate as evaluation index, Selection of extraction temperature, extraction time and material/liquid ratio as the research object. On the basis of single factor test , optimization of the experiment used the Box-Benhnken principle for central composite design. By response surface analysis , the optimum extraction conditions were determined extraction temperature 82℃, extraction time 3.9 h, material/liquid ratio 1∶20 g/mL. The extraction rate for these optimum condition was 10.36%.