Abstract

Abstract: Carrot scrap was used as raw material in this experiment to extract pectin. The method of producting Pectin that extracted by HCL and precipitated by Al2 (SO4)3 was applied. The influence of temperature, pH value, time of extraction, amount of Al2 (SO4 )3 on the production rate was studied. The optimal Combination of extraction conditions was: weight suitable dried carrot scrap and transfer to 12. 5 times water, adjust the pH to 1. 5, and heat with stirring at 9o℃ for 1. 5h then add 20% Al2 (SO4)3, to the filterd Pectin liquor to precipitate Pectin.

Key words: , Carrot scrap Pectin Extracting conditions；

CHEN Gai-Rong, Zhang-Qing-Zhi, Zheng-Hong-He. [J]. FOOD SCIENCE, 1997, 18(7): 38-41.

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