超声波辅助提取蜜环菌子实体多糖的工艺研究

利用超声波辅助提取蜜环菌子实体多糖,在单因素实验的基础上,选取超声时间、超声温度、液固比三个因子进行三因素三水平的Box-Behnken中心组合设计,以多糖提取率为响应值进行实验,运用JMP7.0.2统计分析软件分析数据,建立蜜环菌多糖提取率的二次回归方程。采用响应面分析方法对工艺参数进行优化,得到的优化提取工艺条件修正后为液固比10∶1,超声温度77℃,超声时间22min,在此条件下蜜环菌子实体多糖提取率的预测值是7.0466%,实际验证值为7.0041%。

Chemical Compositions of Volatile Oil from Fruiting Body of Armillaria luteo-virens

The chemical compositions of volatile oil from fruiting body of Armillaria luteo-virens in Qinghai Province were firstly analyzed with GC-MS and its relevant compositions were detected by calculating chromatographic peak area with normalized method. 21 peaks were separated and 13 compositions were identified which were mainly unsaturated fatty acids, taking 97.1% of the total volatile oil.