At present, the production of pectin in China is still lagging. Because the traditional production in which ethanol is the precipitant costs higher, but the technology of salting out which costs lower is not prefect. Based upon the present condition, we studied the extracting and purifying technology about pectin from apple pomace. It involved the following aspects: choosing the optimal acidolysis reagent, determining the optimal parameters of extracting technology of pectin, comparing the effect of pectin ...