Description

Poly-γ-Glutamic Acid is a high molecular weight, naturally occurring biopolymer composed of D- and L-glutamic acid units linked by γ-peptide bonds. This unique structure provides exceptional water solubility, biodegradability, and biocompatibility, making it a versatile and valuable functional material across multiple industries. It is particularly sought after in the cosmetics, pharmaceuticals, agriculture, and food sectors for its superior moisturizing, film-forming, and chelating properties.

Application

• Cosmetics & Personal Care: Acts as a powerful humectant and moisturizer in creams, lotions, and serums; enhances skin elasticity and provides long-lasting hydration.
• Pharmaceuticals & Biomedical: Used as a drug delivery carrier for sustained release, a biocompatible hydrogel material for wound healing, and a component in tissue engineering scaffolds.
• Agriculture: Functions as a natural fertilizer synergist and soil conditioner, improving water retention and nutrient uptake by plants.
• Food Industry: Employed as a thickener, stabilizer, and cryoprotectant; can be used to enhance the texture and shelf-life of various food products.
• Environmental: Serves as a highly effective flocculant for wastewater treatment and a heavy metal chelator for bioremediation processes.
• Industrial: Utilized in the production of biodegradable fibers, films, and hydrogels for eco-friendly packaging and materials.

Basic Information

Product Name	Poly-γ-Glutamic Acid
CAS No.	84960-48-5
Molecular Formula	(C5H7NO3)n
Molecular Weight	Variable (High Molecular Weight Polymer)
Synonyms	γ-Polyglutamic Acid; γ-PGA; Poly(γ-glutamic acid); γ-PGA; Glutamic acid homopolymer; Poly(glutamic acid); Natto gum; 84960-48-5
EINECS	Contact for details

Quality Control

Our Poly-γ-Glutamic Acid is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets stringent specifications for purity, molecular weight distribution, and microbiological quality. Certificates of Analysis (COA) documenting key parameters such as assay, heavy metals, and residual solvents are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white powder or fibrous solid
Identification (IR)	Conforms
Assay (γ-PGA Content)	≥ 95.0% (on dried basis)
pH (1% Solution)	5.0 - 7.0
Loss on Drying	≤ 8.0 %
Residue on Ignition (Ash)	≤ 1.0 %
Heavy Metals (as Pb)	≤ 10 ppm
Total Plate Count	≤ 1000 CFU/g
Yeast & Mold	≤ 100 CFU/g

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.