| Nutritional Value: | Nutritional |
|---|---|
| Certification: | ISO |
| Packaging Material: | Paper |
| Storage Method: | Normal |
| Shelf Life: | >12 Months |
| Type: | D-Aspartic Acid |
| Samples: |
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| Customization: |
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With its unique molecular structure and physicochemical properties, hyaluronic acid shows a variety of important physiological functions in the body, such as lubricating joints, regulating the permeability of blood vessel wall, regulating the diffusion and operation of protein, water and electrolyte, and promoting wound healing. More importantly, hyaluronic acid has a special water retaining effect. It is the best moisturizing substance found in nature at present, and is called an ideal natural moisturizing factor| Item | Specification | Result | ||||
| Physical & Chemical Test | ||||||
| Appearance | White or almost white powder or granules | Complies | ||||
| Infrared absorption | Positive | Complies | ||||
| Reaction of sodium | Positive | Complies | ||||
| Absorbance | ≤0.25 | 0.08 | ||||
| Transparency | ≥99.0% | 100.0% | ||||
| PH | 6.0~7.5 | 6.5 | ||||
| Intrinsic viscosity | ≥22.40 dL/g | 22.66 dL/g | ||||
| Molecular weight | ≥1.40×106 Da | 1.42×106 Da | ||||
| Kinematic viscosity | Actual value | 52.57 mm²/s | ||||
| Purity Test | ||||||
| Loss on drying | ≤10% | 9.34% | ||||
| Residue on ignition | ≤20% | 18.85% | ||||
| Heavy metals | ≤20ppm | <20ppm | ||||
| Arsenic | ≤2ppm | <2ppm | ||||
| Protein | ≤0.1% | 0.03% | ||||
| Assay | 95.0%~105.0% | 96.6% | ||||
| Glucuronic acid | 46.0%~51.0% | 46.7% | ||||
| Microbiological Purity | ||||||
| Total bacterial count | ≤100CFU/g | <10CFU/g | ||||
| Yeasts & mold | ≤20CFU/g | <10CFU/g | ||||
| E.coli | Negative | Negative | ||||
| Staph | Negative | Negative | ||||
| Pseudomonas aeruginosa | Negative | Negative | ||||
| Conclusion: The product above complies with the standard of QB/T 4416-2012. | ||||||
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