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Excellent Properties of L-Alanyl-L-Cystine
1. Chemical Stability and Solubility
Stability:
Resistant to thermal degradation under moderate conditions (e.g., stable below 200°C), making it suitable for formulations requiring heat tolerance.
The peptide bond is less prone to hydrolysis compared to some other dipeptides, enhancing storage stability in aqueous solutions.
Solubility:
Soluble in water and polar solvents (e.g., ethanol, DMSO), allowing easy incorporation into various pharmaceutical and nutritional formulations.
2. Biological Activity and Functional Groups
Thiol Group Reactivity:
The cysteine moiety contains a thiol group (-SH), which can:
Act as a reducing agent, scavenging free radicals and protecting cells from oxidative stress.
Form disulfide bonds with other thiol groups, crucial for protein folding and structural stability.
Amino Acid Pooling:
Upon hydrolysis, it releases L-alanine (a non-essential amino acid) and L-cysteine (a precursor to glutathione, the body’s primary antioxidant).
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