
The basic structure of Sodium polyglutamate (PGA) consists of D- and L-glutamic acid monomers which are connected by amid linkages between α-amino and γ-carboxyl groups. Large number of carboxyl along the molecule chain of PGA can form hydrogen bonding in a molecule or between different molecules. Thus it has high water absorb-ability and moisture-retaining capability.
PGA can be divided into many different types, such as PGA-HMW (high molecular weight) (about 1000KDa), PGA-LMW (low molecular weight) (about 100KDa), and PGA-Oligo (oligo molecular weight) (about 10KDa).
Molecular formula:
Test Items | Specification |
Appearance | Almost white crystalline powder |
Assay (Na+-PGA) | ≥92% |
Intrinsic viscosity, [η]/(dL/g) | 1.0~5.0 |
Loss on Drying | 10% max. |
pH (1% solution) | 5.0 ~ 7.5 |
Clarity, OD400 (4% aq. sol’n,400nm) | 0.12 max. |
Heavy metals(total as Pb, mg/kg) | 10 max. |
Total Plate Counts | 100 max. |
Molds and Yeasts | 100cfu/g |
E.Coli | Absent |
Pseudomonas Aeruginosa | Absent |
Staphylococcus aureus | Absent |
1. Healthy whitening
In the case of meeting storage conditions and unsealing, the shelf life is 2 years.
If you are interested in the product, contact 2bvideo.com for more information for more information
The information of 2bvideo.com limited shown above is provided by the user or collected on the network. Video 2B does not guarantee the authenticity,accuracy and legitimacy of 2bvideo.com limited information. Video 2B does not involve legal relationships and disputes between users arising from transactions other than secured transactions on this website. Disputes shall be settled by you through negotiation. If you are the person in charge or relevant employee of this enterprise, if you find that the enterprise information is incorrect or want to manage thiscompany, please contact us jacklee1558@gmail.com, after you claim the enterprise, you can obtain management permission, publish supplyand demand information, bring consulting orders, and remove page advertisements.
Main Product:
Food Additives,
Cosmetic Raw Materials,
Vitamins and Minerals,
Plant Extract,
Sodium Hyaluronate,
Phytic Acid