gamma Poly glutamic Acid

gamma Poly glutamic Acid CAS No: 25513-46-6  Molecular formula: (C5H9NO4)x  Molecular weight: 147.129     Introduction Gamma-poly-glutamic acid (gamma-PGA) is a natural occurring, multi-functional, and biodegradable biopolymer. It is produced through fermentation by Bacillus subtilis using glutamic acid. PGA is consists of glutamic acid monomers crosslinked between α-amino and γ-carboxyl groups, and the molecular weight of PGA is usually between 100~1000 kDa. It is water-soluble, edible and non-toxictowards human, and is environment friendly. It has broad applications in the fields of medicine, food, cosmetics, and water treatment.   Applications gamma-PGA and its derivatives can be widely used in the food industry, cosmetics, health care, water treatment, hygienic products, medical and other fields. Applications of gamma-PGA Application field Product type Biochemical functionality Food industry Thickener/Stabilizer Viscosity enhancement for liquid products Texture enhancer Texture improvement for bakery products and noodles Animal feed supplement Facilitating minerals absorption, improving bone growth, egg-shell strength, and albumin firmness, decreasing body fat Health-care Nutrition supplement Facilitating calcium absorption, improving osteoporosis conditions Medical treatment Controlled release drug carrier, medical bondage Biocompatible carrier for cancer drug, gene therapy Cosmetics Moisturizer Improving skin-care quality, reducing skin wrinkle conditions Water treatment Heavy metal absorbent Removal of heavy metals and radionuclide Wastewater treatment Biopolymer flocculants Substitute for polyacrylamide or PAC Agriculture Increase the quality and quantity of plants, Soil improvement, Seed coating Inhibitor, anti-pathogen, High water absorbent  Suggested usage: 0.05% ~ 1.00%, or as required   We offer technical research team to test the efficacy and use of PGA in cosmetic products and agriculture, and assist clients in application development trials.      Product Specification   ITEM SPECIFICATION (Food/ Cosmetic grade) Physical Appearance White to off-white, free-flow powders Purity (gamma-PGA) 92% (by HPLC) Molecular Weight 700 kD (by GPC/HPLC) LD(Loss on Drying) 10% max., by automatic infrared analyzer pH 5.0~7.0 Clarity, OD400 (4% aq. sol’n) 0.13 max. (Cosmetic Grade: 0.07 max.) Heavy metals Total as Pb: 20 ppm max. TPC (CFU/g) 3,000 max. (Cosmetic Grade 500 max.) E.coli Negative Salmonella Negative Particle size 100% thru 100 mesh Packaging and storage,  gamma-PGA pure powder for Medicine, Food, or Cosmetic.  gamma-PGA broth powder for Agriculture. 100g,1kg,10L, or or packed to customer’s requirement.  Keeping in cool place with no direct sunshine exposure and the temperature is below 20°C, the validity period is two years