草酸铵法和混合盐析法橘皮果胶提取工艺的对比研究  

Comparison Study on Extraction of Pectin from Orange Peel by Ammonium Oxalate and Mixing-Salting Out Method

作　　者：康莹[1] 唐艳[1] 陈凯[1] 黄磊[1] 姜敏[1] 

机构地区：[1]陕西理工学院化学与环境科学学院,陕西汉中723000

出　　处：《化工技术与开发》2013年第7期15-17,共3页Technology & Development of Chemical Industry

基　　金：陕西省教育厅科学研究项目(12JK0637);陕西省科学技术厅项目(2011k17-03-10)

摘　　要：以汉中地产橘皮为原料,进行草酸铵法和混合盐析法橘皮果胶提取工艺条件的对比研究。实验结果表明,草酸铵法在浸提温度80℃、草酸铵浓度0.8%、料液比1∶30、浸提时间1.5h的最佳工艺条件下,果胶产率为35.6%;混合盐析法在浸提温度80℃、混合盐比12∶1、浸提时间1.5h、pH3.8的最佳工艺条件下,果胶产率为8.1%。因此,我们建议工业上用草酸铵法来提取果胶。Applied local orange peel in Hanzhong as experimental material, the comparison extracted research of pectin from orange peel by ammonium oxalate and mixing-salting out methods was carried out. The results showed that by ammonium oxalate method, un- der the best extraction process conditions of extraction temperature 80℃, ammonium oxalate mass fraction 0.8%, the ratio of solvent to material 1 ： 30 and extraction time 1.5h, the pectin yield was 35.6%, while the pectin extraction rate was 8.1% by mixing-salting out method under the extraction temperature 80℃, the ratio of mixing-salt 12 ： 1, solvent to material ratio 1 ： 30, extraction time 1.5h and pH value 7. So ammonium oxalate was suggested to be used in industrial extraction of pectin from orange peel.

关 键 词：橘皮 草酸铵 混合盐析 果胶 提取 产率 

分 类 号：TS255.36[轻工技术与工程—农产品加工及贮藏工程]