超声波辅助提取桔皮中果胶的研究

Study on pectin extraction with supersonic wave from orange peel

研究了不同因素对超声波辐射萃取法从桔皮中提取果胶的影响,通过试验确立了超声波条件下提取桔皮中果胶的最佳工艺条件为:用盐酸调pH值至1.8,用水作溶剂,料液比1∶20,超声功率600 W,作用时间40 min,乙醇浓度60%。在此条件下,果胶提取率可达到20.8%。并且确定了各因素对提取率的影响顺序为:pH值<料液比<超声时间<乙醇浓度<超声功率。

The paper gave diversity factors for pectin from orange peel with making use of supersonic wave extraction,and built optimally technology conditions about pectin from orange peel with making use of supersonic wave extraction.The results showed that the optimum conditions were as follows： pH value of extraction of 1.8 by Hcl,using the water as solvent,the volume of water to the weight of orange peel of 20∶1,supersonic wave power of 600 W for 40 min,the concentration of ethanol 60%.The output ratio of pectin of 20.8% was obtained under the optimum conditions.and the subsequence of the effect of the extraction rate as follows：pH valuethe volume of water to the weight of peelsupersonic timethe concentration of ethanolsupersonic wave power.