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AI Product Description
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Threonine, chemically designated as 2-amino-3-hydroxybutanoic acid, is an essential alpha-amino acid vital for human and animal health. With the molecular formula C4H9NO3 and a CAS registry number of 72-19-5, this compound exists in two enantiomeric forms: L-threonine and D-threonine, with the L-isomer being the biologically active form found in proteins. As an essential amino acid, the human body cannot synthesize threonine de novo; it must be obtained through dietary intake or supplementation. Structurally, it features a hydroxyl group on its side chain, which distinguishes it from other standard amino acids and contributes to its unique chemical reactivity and role in protein structure stabilization.
In industrial and biological applications, L-threonine serves as a critical building block for protein synthesis across all living organisms. In the pharmaceutical sector, it is widely utilized in the formulation of nutritional supplements, intravenous feeding solutions, and specialized medical foods designed to treat metabolic disorders or support recovery in critically ill patients. Its presence is crucial for maintaining the structural integrity of collagen and elastin, tissues that provide strength and elasticity to skin, tendons, and ligaments. Furthermore, threonine plays a pivotal role in the immune system by supporting the production of antibodies and facilitating gut mucosal health, thereby enhancing overall immunity.
The agricultural industry relies heavily on synthetic L-threonine as a feed additive for livestock, poultry, and aquaculture. Since modern breeding aims for rapid growth and high yield, natural feed sources often lack sufficient threonine levels to meet these demands. Supplementation ensures optimal protein metabolism, promotes efficient weight gain, and improves reproductive performance in animals. Additionally, threonine acts as a precursor for the biosynthesis of glycine, serine, and cysteine, further expanding its metabolic significance. Due to its safety profile and high bioavailability, it remains a staple ingredient in both human nutrition and global animal husbandry, ensuring balanced diets and sustained physiological function worldwide.