| CAS No.: | 25513-46-6 |
|---|---|
| Formula: | C5h9no4 |
| EINECS: | 200-293-7 |
| Packaging Material: | Paper |
| Storage Method: | Normal |
| Shelf Life: | >12 Months |
| Samples: |
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| Customization: |
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| Grade | Specification | Function |
| Cosmetic Grade | PGA-HMW(>700k Da) | 1.Long-lasting moisturizing and whitening 2.Synergistic effects with HA 3.Increasing content of NMF in skin |
| Food Grade | PGA-LMW(70k dA~150K Da) | |
| PGA-Oligo(<10k Da) |
Take out the frozen strains:Select appropriate strains from the frozen strain storage for production purposes
Activation of the strains:Inoculate the retrieved frozen strains into a culture medium, providing suitable conditions such as temperature, nutrients, and oxygen supply to enable the strains to enter the growth phase.
The primary bacteria cultivation:Transfer the activated strains to a culture medium and promote their growth and reproduction through cultivation and agitation, increasing their population.
The secondary bacteria cultivation:Transfer the strains obtained from primary cultivation to a new culture medium for secondary cultivation, further increasing the population of bacteria.
Fermentation and cultivation:Transfer the secondary culture to a fermentation tank or bioreactor, providing suitable conditions such as temperature, pH, and oxygen supply for fermentation and cultivation. This stage is crucial for bacterial growth and the production of sodium polyglutamate.
The first precipitation of the fermented liquid:After a certain period of fermentation, sodium polyglutamate begins to precipitate from the fermented liquid. Typically, the addition of precipitants or pH adjustment is used to separate the sodium polyglutamate.
Dehydration and re-dissolving:Dehydrate the precipitated sodium polyglutamate to remove excess water, followed by re-dissolving it in a suitable solvent to obtain a high-concentration sodium polyglutamate solution.
Filtration:Filter the solution to remove suspended matter, solid particles, and impurities. This step helps improve the purity and quality of the product.
Precipitation:Using specific methods such as adding salts or adjusting the solution concentration, further precipitate sodium polyglutamate from the solution.
Dehydration:Dehydrate the precipitated sodium polyglutamate to remove residual moisture and ensure dryness.
Vacuum drying:Place the dehydrated sodium polyglutamate in a vacuum environment and use low pressure and appropriate temperature to remove the remaining moisture from the product, achieving complete drying.
Sieving:Screen the dried sodium polyglutamate to remove uneven or oversized particles, ensuring product uniformity and quality.
Package:Pack the sieved sodium polyglutamate product according to the specified packaging requirements to protect the product and ensure its safety during transportation and storage.
Storage:Store the packaged sodium polyglutamate product under appropriate conditions, such as a dry, cool, and light-protected environment, to ensure product quality and stability.
| Product name | Polyglutamic acid | ||
| Test item(s) | Limit | Test result(s) | |
| Description | White or off-white powder or granules | Complies | |
| Assay/% | ≥92.0 | 92.4 | |
| PH(1% solution) | 5.0-7.5 | 6.8 | |
| Intrinsic viscosity(dL/g) | 0.1-1.0 | 0.25 | |
| Absorbance(4%,400nm) | ≤0.12 | 0.027 | |
| Heavy metal/(mg/kg) | ≤10 | <10 | |
| Loss on drying/% | ≤10.0 | 7.8 | |
| Total Plate Count/(cfu/g) | ≤100 | 13 | |
| Molds and Yeasts count/(cfu/g) | ≤100 | <10 | |
| Thermophilic coliform | Negative | Negative | |
| Pseudomonas Aeruginosa | Negative | Negative | |
| Staphylococcus aureus | Negative | Negative | |
| Conclusion | Complies with standards. | ||
Baoding Faithful Industry Co., Ltd. was established in 2005 and is located in the National High Tech Industrial Science and Technology Park of Baoding City, Hebei Province. It specializes in researching, producing, and selling raw materials for health products. Its main products include sodium hyaluronate, collagen, trypsin, gastric enzymes, and plant extracts. Our products are exported to over 20 countries, including the Americas, Europe, and Asia. We have extensive markets and research centers in the United States, Germany, Japan, and other places and a vast database of cutting-edge skin biology that accurately captures global trends. The laboratory has senior engineers and high-end experimental equipment, pursuing ultimate scientificity and safety and meeting consumers' high requirements for quality of life. We have established a comprehensive service system from quality control and sales to after-sales service and have passed the ISO9001 quality management system. We will provide new and old cosmetics customers with higher quality products, higher quality, more complete, and more thoughtful services.
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