Poly – γ – glutamic acid (PGA) is a water-soluble polyamino acid produced by microbial fermentation in nature. Its structure is a high molecular weight polymer in which glutamic acid units form peptide bonds through alpha amino and gamma carboxyl groups
The molecular weight distribution ranges from 100kDa to 10000kDa. Poly – γ – glutamic acid has excellent water solubility, super strong adsorption, and biodegradability. The degradation product is pollution-free glutamic acid, which is an excellent environmentally friendly polymer material. It can be used as a water retaining agent, heavy metal ion adsorbent, flocculant, slow-release agent, and drug carrier. It has great commercial and social value in industries such as cosmetics, environmental protection, food, medicine, agriculture, and desert management
Specification：
| Purity（g/L） | 40 min |
| Appearance | yellowish-brown liquid |
| PH | 5.5-8.0 |
