Sodium Polyglutamate (γ-PGA) with CAS 28829-38-1
What is Sodium Polyglutamate?
Sodium Polyglutamate (Sodium γ-Polyglutamic Acid, γ-PGA-Na) is a high-performance, biodegradable, and water-soluble anionic biopolymer derived from the fermentation of Bacillus subtilis. This naturally occurring macromolecule consists of glutamic acid units linked by amide bonds between α-amino and γ-carboxylic acid groups, making it an exceptional multifunctional ingredient for various industries.
As a leading Sodium Polyglutamate supplier, Runtai Chemical supplies premium-grade γ-PGA, ensuring optimal performance for cosmetics, agriculture, food preservation, wastewater treatment, and biomedical applications. Our product is manufactured under strict quality control standards, guaranteeing high purity, consistent quality, and competitive pricing for global customers.
Runtai Chemical is a professional and reliable China manufacturer of Sodium Polyglutamate (γ-PGA) with CAS 28829-38-1 with higher purity and lower price. If you are interested in our Sodium Polyglutamate (γ-PGA), PLS free to contact us for a free sample!
Product Advantages
- Superior Water Retention: Exceptional hygroscopic properties with water-holding capacity up to 5000 times its own weight, surpassing hyaluronic acid. Ideal for moisturizing formulations and agricultural applications.
- 100% Biodegradable: Completely biodegradable and eco-friendly biopolymer derived from natural fermentation. Non-toxic, safe for humans and the environment, meeting sustainability standards.
- Excellent Film-Forming: Forms smooth, breathable films that provide protective barriers. Enhances product texture, improves skin feel, and extends active ingredient release in cosmetic formulations.
- Strong Chelating Ability: Effectively chelates metal ions (Ca²⁺, Mg²⁺, Fe³⁺), preventing oxidation and degradation. Improves nutrient absorption in agriculture and stabilizes formulations.
- Skin Conditioning: Enhances skin elasticity, smoothness, and hydration. Promotes collagen synthesis, reduces fine lines, and provides anti-aging benefits for cosmetic applications.
- Agricultural Enhancement: Improves soil structure, increases water retention in soil, enhances nutrient availability, and promotes plant growth. Acts as natural biostimulant and fertilizer synergist.
Sodium Polyglutamate Quick details
- Chemical Name:γ-poly-glutamic acid (γ-PGA)
- CAS No.: 28829-38-1
- EINECS: 201-127-6
- Molecular Formula:(C5H7NO3)n.Na
- Molecular weight:≥700,000Da
- Appearance: Almost white crystalline powder
- Synonyms:SODIUMPOLYGLUTAMATE;SODIUMPOLYGLUTAMATE(γ-poly-glutamicacid(γ-PGA));SodiumPolyglutamate(sodiumγ-poly-glutamicacid,γ-PGA;Sodiumpolyglutamate(PGA);SodiumpolyglChemicalbookutamatenattogum;Poly[imino[(1S)-1-(2-carboxyethyl)-2-oxo-1,2-ethanediyl]sodiumsalt(1:1)];SodiumPolyglutamate(sodiumγ-poly-glutamicacid;SODIUMPOLYGLUTAMATE92%
Sodium Polyglutamate Typical Properties
| Item | Specification | Results |
| Appearance | Almost white crystalline powder | Conforms |
| Assay (Na+-PGA) | ≥92% | Conforms |
| ntrinsic viscosity, [η]/(dL/g) | 0.1~5.0 | Conforms |
| Loss on Drying | ≤10.0% | 5.7% |
| pH (1% solution) | 5.0 ~ 7.5 | 6.2 |
| Clarity, OD400 (4% aq. sol’n,400nm) | ≤0.12 | Conforms |
| Heavy Metals | ≤10ppm | Conforms |
| Total Plate Count | ≤100CFU/g | Conforms |
| Yeast&Mold | ≤100CFU/g | Conforms |
| E.Coli | N.D. | N.D. |
| Pseudomonas Aeruginosa | N.D. | N.D. |
| staphyloccus | N.D. | N.D. |
| Conclusion | The results conforms with enterprise standards | |
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Sodium Polyglutamate Applications
Sodium Polyglutamate is a biopolymer compound polymerized from glutamic acid, which has the characteristics of strong water retention, promoting ingredient absorption, and high biocompatibility. It is widely used in skincare, medicine, agriculture, and other fields. Its core functions include improving moisturizing effect, enhancing product permeability, assisting in repair and nutrient transport, etc.
Efficient moisturizing and water locking
Sodium glutamate molecules contain a large number of hydrophilic groups (such as carboxyl groups), which can adsorb thousands of times their own weight of water, forming a transparent water film and reducing skin moisture evaporation. Its moisturizing ability is superior to hyaluronic acid, especially suitable for long-term moisturizing needs in dry, sensitive skin or dry environments.
Promote the absorption of active ingredients
By softening the stratum corneum and regulating skin permeability, it helps the effective ingredients in skincare products (such as vitamins and peptides) penetrate deeper into the skin, enhancing anti-aging and whitening effects. Experiments have shown that it can assist in increasing the absorption rate of certain components by 20% -30%.
Repair and Soothing
As a natural source biopolymer, its mild properties can assist in repairing the skin barrier, reducing redness and sensitivity caused by external stimuli, and are commonly used in repair skincare products or postoperative care products.
Agricultural and Pharmaceutical Applications
In the pharmaceutical field, as a drug carrier, it is used for sustained-release formulations or targeted delivery to improve drug stability and utilization.
In the agricultural field, as a fertilizer enhancer, it adsorbs nutrients (such as nitrogen and phosphorus) from the soil, reduces loss, and improves plant absorption efficiency.
Sodium Polyglutamate (γ-PGA) Package & Storage
- Package:100g/bag; 25kg/drum
- Storage: Store in a cool place and keep it sealed to avoid direct sunlight.
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