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魔芋中活性成分联产工艺研究
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摘要
以魔芋为研究对象,采用超声辅助联产工艺法对其活性成分进行研究。用正交优化试验考察了提取神经酰胺与生物碱的影响因素,确定了最佳提取工艺条件:提取温度为60℃、乙醇浓度为70%、提取时间为20min、料液比为1:40。在此条件下得到魔芋中神经酰胺提取率为1.57mg/g,生物碱提取率为0.41mg/g。采用柱层析、重结晶等技术纯化后神经酰胺和生物碱的纯度分别为80.77%和71.68%;采用乙醇沉淀法从魔芋残渣中提取KGM类化合物,提取率为0.51g/g,纯化后的纯度为93.86%。本研究对提高魔芋的综合利用,降低生产成本,增加附加经济值,提高经济效益具有重要意义。
With Konjac as the research object,the active components were studied by ultrasonic assisted co-production technology.The factors affecting the extraction of ceramide and alkaloids were investigated by orthogonal test,and the optimum extraction conditions were determined as follows:temperature 60℃,70%ethanol,time 20 min,liquid material ratio 1:40.After being separatedand purified,the ceramide was 1.57mg/g,purity was 80.77%;the alkaloid was 0.41mg/g,purity was 71.68%;the extraction rate of KGM was 0.51g/g by ethanol precipitation method,and the purity was 93.86%.Studing on the joint producing technology of the acive ingredients from Konjac plays very significant meaning for raising comprehensive use,decreasing production cost,increasing economical values and benefits.
引文
[1]Tao Fan,Optimization of enzymolysis-ultrasonic assisted extraction of polysaccharides from Momordica charabtia L.by response surface methodology[J],2015,115(09):701-706
    [2]Xuegang Luo,The mechanism of sodium hydroxide solution promoting the gelation of Konjac glucomannan(KGM)[J],Food Hydrocolloids,2013,30(10):92-99

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