Research Progress of Pectin Separation and Extraction Technology
Pectin is a kind of acidic polysaccharide with complex composition and has great value in agricultural processing in-dustry.Pectin separation and extraction technology mainly includes biological method,chemical method,ultrasonic assisted method,microwave assisted method and plasma technology.Biological method includes enzymatic method,microbial method,high decomposition efficiency,controllable process,low cost,is the most commonly used pectin separation and extraction technology,but there are microbial isolation and domestication difficulties,low large-scale production capacity deficiency.Chemical method mainly includes acid method,alkali method,the use of strong acid,strong alkali reaction extraction pectin,high production efficiency,often used in industrial production,but the introduction of new substances,pollution,water con-sumption.Ultrasonic and microwave and biological method,chemical method and other combination,can effectively enhance the pectin extraction rate,improve the quality of pectin,its in the process control,cost control and other aspects still need to be strengthened.Plasma technology is a new pectin degradation method,with low energy consumption and moderate cost,and its large-scale use needs further research.