Shandong, China
Business Type:
Manufacturer/Factory, Trading Company
Business Range:
Agriculture & Food, Chemicals, Health & Medicine, Manufacturing & Processing Machinery
Registered Capital:
100 RMB
Management System Certification:
ISO 9001, ISO 14000, GMP, HACCP, ISO 22000
Main Markets:
North America, Eastern Europe, Africa, Mid East, Western Europe
OEM/ODM Service
Sample Available
Spanish / German Speaker

L Threonine, China Tryptophan, L-Tryptophan 98.5% (Feed Grade) manufacturer / supplier in China, offering Animal Feed Additive Threonine Tryptophan 98.5%, Nutricorn Feed Additive 18% Dicalcium Phosphate, Nutricorn 60%Feed Additive Corn Gluten Meal with High Quality and so on.

Gold Member Since 2013
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Supplier Homepage Products Amino acids Animal Feed Additive Threonine Tryptophan 98.5%

Animal Feed Additive Threonine Tryptophan 98.5%

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Purchase Qty. / Reference FOB Price
5-14 Pieces US $5
15 Pieces US $15
16+ Pieces US $16
Port: Dalian, China
Production Capacity: 5000mt Monthly
Payment Terms: L/C, T/T, D/P
Certification: QS, CCC, RoHS, ISO, CE
Shape: Powder Feed
Function: Amino Acid Additives
Type: Keeping Health and Promoting Growth
Content: >98.5%
Main Ingredient: Amino Acid

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Basic Info

Model NO.: Content > 98.5%
Main Nutrients: Premix Feed
Trademark: NUTRICORN
Transport Package: 25kg/Bag, 600kg/Bag, 800kg/Bag
Specification: 98.5% HCL Feed grade
Origin: China
HS Code: 292241900

Product Description

Model NO.: HY-Tryptophan98.5
Type: Keeping Health and Promoting Growth
Function: Amino Acid Additives
Shape: Powder Feed
Main Ingredient: Amino Acid
Main Nutrients: Premix Feed
Apperance: White to Pale Yellow Crystalline Powder
Content: 98.5% Min
L-Tryptophan is one of essential amino acids and the fourth limiting amino acid in animal diets, which means it could not be synthesized by the body, in addition, dietary supply through feed materials is usually insufficient. The deficiency of L-Tryptophan was generally characterized as decreased feed intake and efficiency, and slow growth rate. Considering L-Tryptophan playing a key role in growth performance and feed efficiency, it is recommended to add L-Tryptophan in diet to achieve the optimal amino acid balance and fulfill the digestible tryptophan requirement of animals, especially piglets, sows and poultry etc.

L-Tryptophan 98.5% (Feed Grade) is a fermentation product from natural raw materials as nutritional additives for feedstock. Thanks for the state-of-the-art fermentation technology and high level quality control system, we can offer our tryptophan in high purity above 98.5% and consistent quality for animal feed.





White to pale yellow crystalline powder





Specific Rotation [α]D20°C

-29.4°~ -32.8°


Loss on Drying



Residue on Ignition




5.5 ~ 7.0


Heavy metals (as Pb)

≤20 ppm





Sulphate (SO4)



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