丙酮提取金顶侧耳发酵液多糖的优化设计

Optimum extraction process of polysaccharide from Pleurotus citrinopileatus fermentation liquid by acetone

以液体深层发酵法培养金顶侧耳,发酵液以丙酮为提取剂在不同的浓度﹑时间﹑温度条件下提取多糖,利用正交设计试验分析,得到了一种优化方案。试验结果表明:发酵液多糖提取最优方案是提取温度为70℃、丙酮浓度为75%、提取时间为1.5h。

Pleurotus citrinopileatus polysaccharides ware extracted from fermentation liquid by acetone under the conditions of different solvent concentration, extracting duration and temperature. The optimal design of extraction was analysed by using orthogonal test. The results showed that under the condition of acetone concentration of 75%, extraction duration of 1.5h, and temperature of 70℃, the highest yield of Pleurotus citrinopileatus polysaccharides was obtained.