Global Ester Gum Market By Type (Polymerized Rosins of Glycerol Ester (PRGE), Glycerol Esters of Wood Rosin (GEWR), Glycerol Esters of Wood Rosin (GEWR), and Penta Ester Gum), By Application (Chewing Gum, Beverages, Paints, Inks & Coatings, Adhesives, and Cosmetics), By Region, and Key Companies - Industry Segment Outlook, Market Assessment, Competition Scenario, Trends and Forecast 2020-2029