Polyglutamic acid (γ-PGA), also known as natto gum, polyglutamic acid, it is a water-soluble, biodegradable, non-toxic, using microbial fermentation method of biological polymers. Gamma-pga polyglutamate is a sticky substance that was first discovered in "natto" - fermented beans. Gamma-pga polyglutamate is a special anionic natural polymer, homo-polyamide γ-PGA is formed by amide linkage between α-amino group and γ-caboxyl group with molecular weight ranging from 50,000 to 2 million daltons. Gamma-pga is the main component of natto sticky colloid, which has the effect of promoting mineral absorption, and Japan has included gamma-PGA in the list of health ingredients to promote mineral absorption. The special molecular structure of γ-PGA makes it have a strong moisturizing ability. Adding γ-PGA to cosmetics or maintenance products can effectively increase the skin's moisturizing ability and promote skin health. Compared with the recognized most moisturizing Hyaluronic acid (HA), the moisturizing effect of γ-PGA exceeds its effect by 2-3 times, which is a new generation of biotechnology moisturizing ingredients.
Poly - γ-glutamic acid has excellent water solubility, strong adsorption and biodegradability, degradation product for pollution-free glutamic acid, is an excellent environmental protection polymer material, can be used as water retention agent, heavy metal ion adsorbent, flocculant, sustained release agent and drug carrier, etc. In cosmetics, environmental protection, food, medicine, agriculture, desert management and other industries have great commercial value and social value.
peculiarity
· Non-toxic to the human body and the environment, biodegradable, eco-friendly
· Water soluble, can get odorless clean transparent solution
· Hydrogels with excellent performance in the late stage of easy crosslinking
· Can be made into sodium, calcium, magnesium, hydrogen type.
Application range of Polyglutamic acid
1, cosmetic grade, food grade: molecular weight 700,000;
2.drug grade: molecular weight 1 million;
3. water treatment level: molecular weight 1.5 million
4. Soil and plant regulator grade: molecular weight below 20,000.
Food application
Grain baking
1. Increase calcium and mineral absorption
2. Less debris
3. Antioxidant, not easy to soften, flavor maintenance
4. Good taste and long shelf life
5. Increase the volume of bread after baking, rich in water, more bulky, effectively prevent deformation.
6. Improve the "facial body" and maintain the "facial form"
Fried food
1. γ-PGA, in a ratio of 1/1000, combines with ingredients in food (such as fats, fatty acids, vitamins, alcohols) to form antioxidants, which can avoid destruction during processing.
2. Gamma-pga can reduce body fat accumulation (avoid the disadvantages of eating too much fried food)
3. Retain water and make it juicy
4. Good frost resistance (reduce the damage to the texture during freezing and thawing)
Tea beverage
1. The sodium type gamma-PGA will increase the red color of the black tea soup, and the calcium type will decrease it slightly.
2. Na-type γ-PGA can inhibit the formation of black tea milk, and the Na-type polymer has the best effect.
Ice cream
1.γ-PGA is a hydrophilic polymer, and water molecules can form films on the molecular surface, delaying the growth of ice crystals, making ice crystals small and evenly distributed.
2. Improve the taste of ice cream, refreshing and not living
3. Increase melting resistance
4. Promote calcium absorption
5. It is similar to the function of microencapsulated fragrance
Traditional food
---- When the concentration of soybean protein pulp in the first section is,14, add 1/1000 to extend the storage life and enhance the bite strength.
Atomic powder, chemical starch ---- add 1/2500, water retention, water, extended shelf life, good freezing resistance.
For the cake -----, only 1/3000 is added to 1kg flour and stored at room temperature at 30oC for 48 hours. The taste is better than that of trehalose (5%) and the texture becomes denser. (Normal cake without adding anything, at 8 hours has a slight odor).
Agricultural application
γ-polyglutamate γ-PGA can be used as a plant yield-increasing nutrient
1, γ-polyglutamic acid γ-PGA Hydrogel and γ-PGA super hydrophilic and water retention ability
When submerged in the soil, it will form a film on the surface of the root hair of the plant, which not only has the function of protecting the root hair, but also the best transport platform for nutrients, water and root hair in the soil to be in close contact, which can effectively improve the dissolution, storage, transport and absorption of fertilizers. Prevent sulfate, phosphate, oxalate and metal elements from precipitating, so that crops can more effectively absorb phosphorus, calcium, magnesium and trace elements in the soil. Promote the development of crop root system and strengthen disease resistance.
2. γ-polyglutamic acid γ-PGA Hydrogel and γ-PGA balance soil pH value
It has excellent buffer capacity for acid and alkali, which can effectively balance soil pH value and avoid acidic soil caused by long-term use of chemical fertilizers.
3. γ-polyglutamate γ-PGA Hydrogel and γ-PGA can be combined to precipitate toxic heavy metals
It has excellent chelating effect on Pb+2, Cu+2, Cd+2, Cr+3, Al+3, As+4 and other toxic heavy metals.
4, γ-polyglutamate γ-PGA Hydrogel and γ-PGA can enhance plant disease resistance and stress resistance
The integration of plant nutrients and water in the soil enhances resistance to symptoms caused by soil-borne plant pathogens.
5. Promote production increase
It can make tea, fruits, vegetables and other agricultural products rapidly increase production, and increase output up to 10-20%.
Other fields
Gamma-pga and its derivatives range in molecular weight from 50,000 to 2 million daltons, so they can be widely used in the food industry, cosmetics, health care, water treatment, wastewater treatment, hygiene products, medical and hydrogels and other fields.
Water treatment - absorbent or chelating agent for heavy metals.
· Wastewater treatment -- biopolymer flocculant, which can replace polyacrylamide.
· Health care - it is conducive to the absorption of calcium in osteoporosis patients.
· Sanitary products - used as absorbent for baby diapers, women's sanitary napkins, etc.
· Medicine -- carrier of drug release, hemostatic agent, soft tissue filler. .
· Advantages over other polymer commodities:
· Glutamate is a high-end product that is non-toxic, biodegradable and degenerated, and has nutrients for the skin.
Fully suitable for all skin conditions and provides a long-lasting moisturizing effect superior to HA (hyaluronic acid) and collagen
· Only very low concentrations are required, thus reducing costs.
· γ-PGA derivatives have good strength, transparency and elasticity.
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