Study on the extraction technology of pectin from fruits of Rosa davurica Pall.assisted with microwave method

The extraction technology of pectin from fruits of Rosa davurica Pall. assisted with microwave was studied.Using extraction efficiency ( EE) of pectin as examination indicator, the extraction technology of pectin applying chlorhydric acid as extraction solvent was optimized. The optimum ratio between raw material and solvent, the p H of extraction solvent, the extraction temperature, the microwave power, the extraction time and extraction times were 1 ∶ 40, 1.5, 80℃, 500 W, 40min, 3times respectively. The average extraction efficiency of pectin was 0.787% under the optimum extraction condition, which indicated that microwave- assisted method can be applied for the extraction of pectin from fruits of Rosa davurica Pall.