Title: Microwave extraction and separation of pectin from orange peel
Abstract: Pectin has been prepared from the orange peel residues after the extraction of pigment,through the Microwave-assisted extraction of tartaric acid and precipitation of ethanol.The extraction rate of the refined pectin was chosen as the evaluation index.The process conditions determined by the Single-factor experiment was as followed:pH=2.0 for the tartaric acid as extractive solvent,the ratio of solvent to material 10 mL/g,microwave power 280W,radiation time 5min,extractive times 3,enriched ratio 4:1,ethanol concentration 60%,depositional time 60min.According to the optimum conditions,3 experiments were operated and the average extractive percentage reached 21.77%.The results of infra-red spectrometry and quality detection indicated that products were qualified.Tartaric acid as solvent to extract pectin has good quality and high yield;Microwave assisted extraction shows advantages of fast,energy-saving and higher yield.
Publication Year: 2011
Publication Date: 2011-01-01
Language: en
Type: article
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Cited By Count: 1
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