摘要
[目的]研究采用超声波辅助提取香蕉皮中果胶的工艺条件。[方法]采用超声波辐射萃取法从香蕉皮中提取果胶,并研究了不同萃取剂、溶剂、超声时间、超声波辐射功率、料液比、乙醇浓度及提取液pH对果胶提取率的影响。在此基础了进行了正交试验。[结果]确立了超声波条件下提取果胶的最佳工艺条件为:用盐酸调pH为2.0,用水作为溶剂,料液比为1∶15,超声功率为500 W,作用时间为50 min,乙醇浓度为60%,在此条件下提取率可达20.5%。各因素对提取率的影响为:pH﹥料液比﹥超声功率﹥超声时间﹥乙醇浓度。[结论]为综合利用资源及利用超声波提取香蕉皮中果胶提供了一条可行性途径。
[ Objectiye ] The aim was to explore the extraction of the pectin with supersonic wave from banana peel. [ Method ] Pectin was extracted from banana peel by supersonic wave radiation extraction, meanwhile effects of extractant, solvent, radiation time, supersonic wave power, the ratio of water volume to banana weight,ethanol concentration and pH value on the extraction efficiency of pectin were studied by experiment. On the basis,the orthogonal expehmene was conducted. [ Result ] The optimum technological conditions of pectin with supersonic wave from banana peel were as follows： pH value of extraction of 2.0 with HCl,with the water as solvent,the volume of water to the weight of peel of 15： 1, supersonic wave power of 500 W, supersonic time of 50 min, the concentration of ethanol 60% , The output ratio of pectin of 20.5% was obtained on the op- timum conditions. And the subsequence＇ of the effect of the extraction rate as follows：ph value 〉 the volume of water to the weight of peel 〉 su- personic wave power 〉 supersonic time 〉 the concentration of ethanol. [ Conclusion] The research provided a feasible way for the eomprehensive utilization of resources and the extraction of pectin with supersonic wave from banana peel.
出处
《安徽农业科学》
CAS
北大核心
2011年第18期11006-11007,共2页
Journal of Anhui Agricultural Sciences
基金
南京化工职业技术学院院内基金项目(NHKY-2011-26Z)
关键词
超声波
果胶
香蕉皮
Supersonic wave
Pectin
Banana peel
