• Gamma-poly-glutamic acid •

Introduction

Gamma-poly-glutamic acid (γ-PGA) is a natural, multi-functional, biodegradable biopolymer produced from L-glutamic acid 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 and γ-carboxyl groups. It is biodegradable, edible and non-toxic towards human and environment; it has broad applications in fields of medicine, foods, cosmetics, plastics and water treatment.

L-Glu-(L-Glu)n-L-Glu

Applications

γ-PGA and its derivatives can be widely used in the food industry, cosmetics, health care, water treatment, hygienic products, medical and other fields.

Applications of γ-PGA

Application field	Product type	Biochemical functionality
Food industry	Thickener/Stabilizer	Viscosity enhancement for liquid products
	Texture enhancer	Texture improvement for bakery products and noodles
	Animal feed supplement	Facilitating minerals absorption, improving bone growth, egg-shell strength, and albumin firmness, decreasing body fat
Health-care	Nutrition supplement	Facilitating calcium absorption, improving osteoporosis conditions
Medical treatment	Controlled release drug carrier, medical bondage	Biocompatible carrier for cancer drug, gene therapy
Cosmetics	Moisturizer	Improving skin-care quality, reducing skin wrinkle conditions
Water treatment	Heavy metal absorbent	Removal of heavy metals and radionuclide
Wastewater treatment	Biopolymer flocculants	Substitute for polyacrylamide or PAC
Agriculture	Increase the quality and quantity of plants, Soil improvement, Seed coating	Inhibitor, anti-pathogen, High water absorbent

· Suggested usage: 0.05% ~ 1.00%, or as required

· We offer technical research team to test the efficacy and use of PGA in cosmetic products and agriculture, and assist clients in application development trials.

Product Specification

ITEM	SPECIFICATION (Food/ Cosmetic grade)
Physical Appearance	White to off-white, free-flow powders
Purity (γ-PGA)	92% (by HPLC)
Molecular Weight	700 kD (by GPC/HPLC)
LD(Loss on Drying)	10% max., by automatic infrared analyzer
pH	5.0~7.0
Clarity, OD400 (4% aq. sol’n)	0.13 max. (Cosmetic Grade: 0.07 max.)
Heavy metals	Total as Pb: 20 ppm max.
TPC (CFU/g)	3,000 max. (Cosmetic Grade 500 max.)
E.coli	Negative
Salmonella	Negative
Particle size	100% thru 100 mesh

Packaging and storage

· γ-PGA pure powder for Medicine, Food, or Cosmetic.

· γ-PGA broth powder for Agriculture.

· 100g、1kg、10L, or or packed to customer’s requirement.

· Keeping in cool place with no direct sunshine exposure and the temperature is below 20°C, the validity

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