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Threonine is an important nutritional enhancer, which can strengthen grains, pastries and dairy products. Like tryptophan, threonine can restore human fatigue and promote growth and development. In medicine, because the structure of chemicalbook threonine contains hydroxyl groups, it has a water holding effect on human skin, combines with oligosaccharide chains, plays an important role in protecting cell membrane, and can promote phospholipid synthesis and fatty acid oxidation in vivo.
L-threonine food grade
| ITEM | STANDARD |
| Apperance | White Crystalline powder |
| Identification | Meets the requirements |
| Assay % | 98.5-101.5 |
| Lead ≤ mg/kg | 5 |
| Loss on Drying ≤ % | 0.2 |
| Specific rotation[a]D20° | -26.5°~ -29.0° |
| Residue on Ignition ≤ % | 0.1 |
L-threonine feed grade
| ITEM | STANDARD |
| Appearance | White or sandy beige crystal powder, no obvious purity |
| Identification | Corresponds to standard |
| C4H9NO3 Content(dry basis) ≥% | 98.5 |
| Specific Rotation [a] D20 | -25.0°- -29.0° |
| Loss on drying ≤ % | 0.5 |
| Residue on Ignition ≤% | 0.5 |
| Arsenic (As AS) ≤Mg/Kg | 2.0 |
| Heavy Metals(As Pb) ≥ Mg/Kg | 30 |
Nutritional supplements. In addition to supplementing L-lysine, cereal protein is also L-threonine. This is because although the content of L-threonine is high, the combination of threonine and peptide in protein is difficult to hydrolyze, and it is difficult to digest and absorb. It is also used to prepare amino acid infusion and comprehensive amino acid preparations.
