IT IS AN ENZYME CATALYSING THE HYDROLYSIS OF ALPHA-1,4 GLUCOSIDIC LINKAGES OF POLYSACCHARIDES LIKE STARCH,GLYCOGEN OR THEIR DEGRADATION PRODUCTS.ALPHA AMYLASE IS USED IN THE PRODUCTION OF PREDIGESTED STARCHY FOOD AND FOR THE CONVERSION OF STARCH TO FERMENTABLE SUGARS IN THE BAKING, BREWING, AND FERMENTATION INDUSTRIES.