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An Overview of Extraction and Seperation Process of Tea Polysaccharides

LI Chun-lei;BU Zhao-sheng;LI Zhi-peng;Weifang University of Science & Technology;  
The extraction process of tea polysaccharided includes independent extraction and comprehensive extraction. Pretreatment, extracting condition and precipitation condition of tea polysaccharides in the extraction process were directly related to the extraction rate, purity and activity of tea polysaccharide. Therefore, this paper summarized independent extraction process, influencing factors and parameters for tea polysaccharides; advantages and disadvantages of enzyme extraction and microwave-assisted extraction; methods, parameters, and advantages and disadvantages of precipitation extraction. Meanwhile, it introduced the process of comprehensive extraction.
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