化学法提取竹笋加工废弃物中膳食纤维的研究

Extraction of Dietary Fiber from Bamboo Shoots Process Waste by Chemical Method

以竹笋头、竹笋壳为原料,采用碱液和酸液浸泡的化学法提取膳食纤维,通过单因素试验与正交试验对提取工艺进行优化,得到最佳的工艺参数,即笋头及笋壳的碱液提取条件为:pH值为12,料液比1∶20,温度70℃,时间80 min;酸液提取条件:笋头的pH值为2,料液比为1∶10,温度为50℃,时间为100 min;笋壳的pH值为2,料液比为1∶10,温度为50℃,时间为120 min。

Bamboo shoots head and bamboo shoots shell are used as raw material to extract dietary fiber by chemical method using al-kaline and acid solution. Based on single factor experiment and orthogonal test to optimize the extraction process. The optimal process pa-rameters were as follows： bamboo shoots head and bamboo shoots shell of alkaline extraction is 80 min extracting with pH 12, ratio of material to liquid is 1：20 at 70℃ of reaction time is 80 minutes. The function of acid： bamboo shoots head： 100 min extracting with pH 2, ratio of material to liquid is 1：10 at 50℃. Bamboo shoots shell： 120 min extracting with pH 2, ratio of material to liquid is 1 ：1 0 at 50℃.