ABSTRACT
Polygalacturonases (PGs) belong to a large group of pectinases, which synergistically mediate the complete decomposition of pectin substances that are abundantly present in plant tissues. Polygalacturonases represent an important member of pectin-degrading glycoside hydrolases of the family GH28 and is widely distributed among bacteria, fungi and yeasts. 400Microbes secrete PGs to invade plant tissues during pathogenesis. Beside this, microbial PGs are widely used in food industry for clarification of fruit and vegetable juices. Alkaline PGs are used in textile industry for degumming and retting of plant fibres. This review focuses on comparative biochemical characterization of microbial PGs which will be useful for its application in different industries.
