Study on Comparison of Pectin Extraction Methods from Shaddock Peel and Flow Properties of Pectin Solutions

Abstract

Abstract: Different pectin extraction methods for Jiangyong Shaddock peel were compared. The flow properties of shaddock peel pectin solutions were studied and the intrinsic viscosity of pectin was determined and thus the viscosity-average molecular weight of pectin was obtained. Experiments results showed that the hydrochloric acid countercurrent extraction is the best method to extract pectin from shaddock peel. The viscous flow active energy of pectin solutions was about 17.14kJ/mol, depending on the concentration. Intrinsic viscosity and average molecular weight of pectin obtained by countercurrent extraction with hydro- chloric acid are 4.492ml/g and 7.17×104, respectively.

Key words: , pectin； shaddock； extraction； flow property； viscosity；

ZHOU Jin-Hua, ZHOU Chun-Shan, WU Yu-Xiong, WANG Fan, SHEN Zhi-Qiang, CHANG Wen-Bin. Study on Comparison of Pectin Extraction Methods from Shaddock Peel and Flow Properties of Pectin Solutions[J]. FOOD SCIENCE, 2006, 27(5): 167-171.

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Study on Comparison of Pectin Extraction Methods from Shaddock Peel and Flow Properties of Pectin Solutions

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