Polyglutamic acid

γ-PGA, CAS：25513-46-6
γ-Polyglutamic acid is a water soluble, biodegradable, non-toxic biopolymer produced by microbial fermentation. γ-PGA is a sticky material first found in “natto”, a fermented soybean. γ-PGA is an unusual anionic, naturally occurring homo polyamide that is made of D & L glutamic acid units connected by amide linkages between alpha amino & gamma carboxylic acid groups. CAS：25513-46-6
γ-PGA has a molecular weights ranging from 50,000 to more than 2 million Daltons.
Properties:
Non toxic towards humans and environment
• Biodegradable, hence eco friendly
• Water soluble, gives non odorous clear transparent solution
• Can be easily cross linked to form hydro gels which further have excellent properties
• Can be prepared in Na, Ca, Mg, H forms.
Applications:
γ - PGA and its derivatives have molecular weights ranging from 50,000 to more than 2 million Daltons, hence they have wide applications in food industry, cosmetics, health care, water treatment, waste water treatment, Hygiene products, Medical treatments, Hydrogels etc.
• Food industry - as thickener for foods & drinks, improves taste of drinks, stabilizer in ice creams, texture enhancer, binder, animal feed supplement, antifreezing agent or cryoprotectant, bitterness relieving agent, as an additive in preparation of starch foods (bakery & noodles) for avoiding staling, enhancing food texture and maintaining food shapes.
• Water treatment – Heavy metal absorbent or chelating agent.
• Waste water treatment – Biopolymer flocculant, a substitute for polyacrylamide.
• Health Care – Facilitates calcium absorption in osteoporosis cases.
• Hygiene products – as absorbent in Baby diapers, women’s tampons etc.
• Medical treatment – Drug release carrier, a haemostatic agent, soft tissue augmentation,.
• Cosmetics - as a humectant, moisturizer to improve skin care quality, as a whitening agent, has anti wrinkle property which gives long lasting effect.