L-Tryptophan is a food-grade amino acid produced through fermentation, known for supporting anxiety relief, improving sleep quality, and regulating appetite, and is mainly used in formulated foods and nutritional supplements.
product advantages
High Purity: Membrane filtration and low-temperature crystallization ensure a purity level of ≥99.9%.
Low Residues: A three-stage resin purification process keeps heavy metals controlled at Pb≤2 ppm and As≤1 ppm.
Microbial Safety: Fully enclosed production and 121°C sterilization keep aerobic bacteria below <10 CFU/g.
Uniform Particle Size: Air-jet milling produces a particle size within the D50 = 25 μm ± 5% range.
Why Clients Trust Us
Strong Production Capacity: Annual output of 20,000 tons of amino acid products.
Global Market: Products exported to Europe, the Americas, Japan, South Korea, and many other countries and regions.
Mature Foreign Trade Experience: Familiar with export procedures, documentation, and customs clearance requirements.
FAQ
Q: Do you support small-batch orders for food-grade L-tryptophan?
A: Yes, the minimum order quantity can start from 1–5 kg, suitable for new project testing and small-scale production.
Q: Can you provide free samples?
A: We can provide small-size free samples; you only need to cover the international courier cost.
Q: Can you provide official testing documents for the product?
A: Every batch comes with COA, MSDS, packing list, and other documents, and we can assist with additional reports if needed.
Q: Do you support third-party testing?
A: Yes, we can cooperate with SGS, Intertek, and other institutions for independent testing.
Q: Is your packaging suitable for long-distance sea transportation?
A: We use aluminum-film inner bags with reinforced paper drums, suitable for long-distance transportation.
Q: What shipping methods are commonly used for transportation?
A: We can ship via DHL/UPS air freight, railway dedicated lines, or full-container/LCL sea freight.
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