2013•Technology & Development of Chemical IndustryRequires access
Comparison Study on Extraction of Pectin from Orange Peel by Ammonium Oxalate and Mixing-Salting Out Method
Min Jiang
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Abstract
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,under 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.