Ads by Google
.
Poly-glutamic acid
Gamma-poly-glutamic Acid Introduction
Gamma-poly-glutamic acid (γ-PGA) is a natural, multi-functional, biodegradable biopolymer produced through a fermentation process with a Bacillus subtilis. PGA is a water-soluble homo-polyamide consisting of D- and L-glutamic acid monomers connected by amide linkages between α-amino andγ-carboxyl groups. The molecular weight ranges from 50 kDa to 2000 kDa with the degree of polymerization ranging from 500 to 5,000.
Chemical structure ofγ-PGA
The molecular chain of γ-PGA has lots of carboxyl group , which can be formed hydrogen bonding internal molecules or between different molecular. It has high water absorbability and moisturizing effect. g-PGA can be used as thickener, gel, filmogen, humectant, retarder, cosolvent, binder and antifreezer. Therefore, it has extensive prospects of application in cosmetics.
SPECIFICATION of Gamma-poly-glutamic Acid
ITEM | SPECIFICATION |
Physical Appearance | White to off-white, free-flow powders |
Purity (γ-PGA) | ≥ 90% |
Molecular Weight | 10~40 kD (LW) 700~1000 kD(HW) |
LD(Loss on Drying) | 10% max., by automatic infrared analyzer |
pH | 5.0~7.0 |
Clarity, OD400 (4% aq. sol’n) | 0.07 max. |
Heavy metals (total as Pb) | 10 ppm max. |
TPC (cpu/g) | 100 max. |
E.coli | Negative |
Salmonella | Negative |
Functions of Gamma-poly-glutamic Acid in Cosmetics
Increase nutriments absorption of the skin
Long-lasting moisturizing effectRelease and supply nutriments gradually Inhibition on Melanin BiosynthesisEnhance the skin healthabsorption and release nutriments gradually Long-lasting moisturizationPossess extremely high moisturizing effect, better than the Hyaluronic acid and Collagen.Provides long-lasting humectation effect, especially under dry place.Restore skin elasticity, smooth the wrinkles Enhance the skin healthFacilitate the skin health condition by enhancing the growth of fibroblast cells.Effectively promote the N.M.F inside the skin.Balance the skin's pH value.Effectively protect skin against pathogenic microbial activity.γ-PGA is a special product with multiple functions toward skin and fully compatible with skin conditions.
Contact at:
Name | Meng |
Skype | fredamxj |
Mobile | 86-18753108688 |
Tel | 86-531-81213308 |
Why choose Freda Company as your supplier for PGA in China?
Freda Biotechnology company, as the biggest manufacture for Poly glutamic acid (PGA), with the first-class technology in the world. And as a goverment support factory, our quality control systerm, price systerm, production scale are all the best in China which other company can not compare with. Most of the China PGA trading companies take Freda as the stable PGA supplier and make big profit
Poly glutamic acid for cosmetics humectant