The extraction of pectin from orange peel with ammonium oxalate

The extracting process of pectin from orange peel with using ammonium oxalate as extracting agent was studied in this paper.Four main factors including concentration,ratio of solid to liquid,extracting duration,extracting temperature were investigated by single factor analysis method.The best process conditions was obtained by orthogonal experiment as follows:concentration 0.8%,ratio of solid to liquid 1∶30,extracting duration 1 h,extracting temperature 80℃,and the extraction rate of pectin could reached 27.65%.