L-Tryptophan
CAS Number: 73-22-3
L-Tryptophan is an essential amino acid that serves as the fourth limiting amino acid in swine diets and plays a key role in serotonin synthesis, appetite regulation, and stress reduction. It is particularly important in low-protein diet strategies where corn and wheat are primary ingredients. Our feed-grade L-Tryptophan is produced via fermentation to ensure high purity and consistent performance.
Technical Specifications
| appearance | White to slightly yellowish crystalline powder |
| purity (%) | ≥98.5 |
| pH (1% solution) | 5.5–7.0 |
| heavy metals (ppm) | ≤10 |
| loss on drying (%) | ≤0.5 |
Applications
- Swine diets especially sow and piglet feeds to reduce aggression
- Poultry feeds to improve feed intake and uniformity
- Low-protein diet formulation to balance indispensable amino acids
- Stress reduction in weaned piglets and transport-stressed animals
- Aquafeed where plant-based proteins are deficient in tryptophan
Key Features
- Fermentation-derived L-form with superior bioavailability over DL form
- Reduces dietary soybean meal inclusion, lowering feed cost
- Supports serotonin pathway improving animal welfare outcomes
- Stable in pelleted and extruded feed processing conditions