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 5kDa to 2000kDa, 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.
Gamma-PGA
Other Name: Natto Gum; PGA;γ-PGA;γ-Polyglutamic Acid; Gamma-Polyglutamic acid
Molecular Structure:
CAS No.:25513-46-6
Appearance: White free-flow powders
Molecular Wt : from 5kDa to 2000kDa
The COA of Gamma-PGA
Test Items
Specification
Appearance
White to off white granular or powder, no Agglomeration
Assay(HPLC)
≥90% PGA-Na
Loss on drying(105℃， 2h)
≤8%
Molecular wt(Da)
≥2,000,000
Visosity 1% (60rpm)
≥90mPa.s(cP)
Heavy metals(Pb)
≤20mg/kg
pH value（10g/L, 25℃）
6.3-7.3
Total plate count(CFU/g)
≤100
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Function-Application
Multi-effects
Being the cosmetic-grade ingredient, γ-PGA has an extensive distribution of molecular weight. Differentmolecular weights of γ-PGA contribute to 14 skin care effects of γ-PGA . Molecular weight of200,000-350,000D functions in stimulating cell growth and tightening skin, 1150,000-1350,000D inhibitingTYR activity for better whitening effect, 1150,000-1450,000D increasing hydrating effect and reducing TEWL.
Dual moisturizing
Being the natural fermented ingredient for beautiful skin, γ-PGA form a protective film on skin surface todefense moisture loss and UV rays, but also to reduce the growth of bacteria and make your skin smooth.γ-PGA, fresh and not greasy, do not plug the pores, is different from the ordinary skin care products.
Being a unique component to promote NMF growing, γ-PGA deeply infiltrates into the horny layer of skinand moisturizes the skin to take skin brightening to new height. γ-PGA is not a moisturizer of self-repair inskin care products.
Efficient
γ-PGA well solve the problems of water shortage, dryness and wrinkles of skin caused by environmentalpollution. It is far better than hyaluronic acid and collagen.
