Advance in microorganism pectinase research

Pectinases are enzymes that can collaboratively decompose pectin.They mainly include polygalacturonase(PG),pectate lyase(PL),and pectinesterase(PE),which are widely used in food,feed,paper and textile industries.In recent years,fruit juice and wine industry in China develops rapidly with national policy and industrial structure adjustments,and there is large market demand of pectinases as a kind of important enzyme preparation in fruit juice industry.Microbiological fermentation method is commonly adopted to produce pectinases.In this paper,pectinase research and application developments with microbiological fermentation method both at home and abroad were mainly summarized and compared.The development of selective breeding,fermentation technique and culture condition of microorganisms producing pectinase were mainly set forth.Finally the enzyme properties and immobilization conditions were briefly introduced.The study pointed out the future direction of pectinase research and provided evidence for the research and development of novel and high effective pectinases being in line with international practice.