... .Halal/Kosher/ISO9001 Industrial Use of High Efficiency PGA in Sewage Treatment IntroductionGamma poly glutamic acid (gamma-PGA) is a natural, multi ... widely used in the food industry, cosmetics, health care, water treatment, hygienic products, medical and other fields. Application fieldProduct typeBiochemical functionalityFood ... about 200 tons. Industrial Use of High Efficiency PGA in Sewage Treatment