Complaint
L-Proline is a circular imamino acid.α-imamino acid, neutral, isoelectric point of 6.30, solubility in water is greater than any amino acid, 100g of water at 25ºC soluble 162g or so. Easy to deliquescence, not easy to crystallize, sweet.Co-heat with ninhydrin solution to form the yellow compound.Once in the peptide chain, hydroxylation can occur to form 4-hydroxyproline, which is an important component of animal collagen.Hydroxyproline is also found in a variety of plant proteins, especially in relation to cell wall formation.Proline often accumulates in plants under various stresses such as drought, high temperature, low temperature and salinity.
| Item | Specifications | Test Results |
| Discription | White crystals or crystalline power | conforms |
| Assay | 98.5- 101.5% | 99.7% |
| Specific optical rotation | -84.5º ~ -86.3º | -85.0º |
| Chloride (as Cl) | ≤0.05% | <0.05% |
| Sulfate(as SO4) | ≤0.03% | <0.03% |
| Iron (Fe) | ≤0.003% | <0.003% |
| Heavy metals (as Pb) | ≤0.001% | <0.001% |
| Other amino acids | ≤0.5% | <0.5% |
| Loss on drying | ≤0.40% | 0.05% |
| Residue on ignition | ≤0.4% | 0.06% |
| Conclusion: This product complies withGB 29938/USP36standard. | ||
3.1. Used for amino acid injection, compound amino acid transfusion.
3.2. L-Proline is a major component of collagen.
3.3. L-Proline can improve plant cold tolerance.
3.4. Used for biochemical research, used for malnutrition, protein deficiency.
3.5. Food additives, flavor agent, and the total heat generation amino sugar - carbonyl reaction, can generate special flavoring substances.
Solid beverage, liquid beverage, dairy products, beauty products, functional food, etc., etc., but not include infant supplies.
