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Specifications
|
Grade: |
AJI92 |
|
Appearance: |
White crystals or crystalline powder |
|
Specific rotation [α]D20: |
-27.6° to -29° |
|
State of solution: |
98% min |
|
Chloride (Cl): |
0.02% max |
|
Ammonium (NH4): |
0.02% max |
|
Sulfate (SO4): |
0.02% max |
|
Iron (Fe): |
10 ppm max |
|
Heavy metals (Pb): |
10 ppm max |
|
Arsenic (As2O3): |
1 ppm max |
|
Other amino acids: |
No Spot |
|
Loss on drying: |
0.2% max |
|
Residue on ignition: |
0.1% max |
|
Assay: |
99% to 100.5% |
|
pH: |
5.2 to 6.2 |
Overview
L-Threonine丨CAS 72-19-5 is one of the 20 standard proteinogenic amino acids, essential for humans and animals, meaning it must be obtained through the diet. It plays a key role in protein synthesis, immune function, and gut health. Industrially, it is produced by microbial fermentation, primarily using strains of Escherichia coli or Corynebacterium glutamicum.
Applications
1. Animal Feed Additive
L-Threonine is widely used in livestock and poultry nutrition to balance amino acid profiles in feed.
Enhances growth performance, feed efficiency, and lean muscle gain, especially in swine and poultry.
Reduces nitrogen excretion by enabling more efficient protein utilization, benefiting the environment.
2. Pharmaceutical and Nutritional Supplement
Used in nutraceuticals and infant formulas.
Supports:
Protein metabolism
Immune system via production of antibodies
Liver health (involved in fat metabolism)
Sometimes used in the management of ALS, spasticity, or multiple sclerosis (though clinical evidence is limited).
3. Biotechnology and Cell Culture
Component of cell culture media and tissue engineering applications.
Used in fermentation processes as a nitrogen and carbon source.
Research reagent in studying amino acid metabolism, enzymatic function, and genetic regulation.
4. Food Industry
Approved as a food additive or nutritional fortifier in specialized dietary products.
Included in sports nutrition formulations to support muscle recovery.
Benefits
Essential amino acid for humans and animals.
Improves digestibility and amino acid balance in feed.
Aids in the biosynthesis of proteins, especially those containing hydroxyamino acids.
Supports collagen, elastin, and mucin production-important for connective tissue and gut lining.
Environmentally beneficial when used in optimized animal feeds (reduces nitrogen waste).
Summary
L-Threonine丨CAS 72-19-5 is a vital, essential amino acid with broad applications in animal nutrition, human health, and biotechnology. It enhances growth performance, supports protein synthesis, and contributes to immune and digestive health. As a feed additive and dietary supplement, it is a key molecule for sustainable agriculture and health science innovation.

