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Biological Role An essential amino acid for humans, meaning it must be obtained from the diet. Plays a role in protein structure (e.g., forming hydrogen bonds via its hydroxyl group) and functions as a precursor for biosynthesis of glycine, serine, and other compounds. Stereochemistry Exists in four stereoisomers due to two chiral centers (at α-carbon and β-carbon), but only L-threonine is naturally occurring and biologically active. Stability Stable under normal storage conditions when kept dry and away from light. Can be degraded by heat, strong acids, or bases, especially during prolonged exposure. These properties make L-threonine critical for nutritional supplements, food fortification, and pharmaceutical applications, while its chemical reactivity enables its use in peptide synthesis and biochemical research.
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L-Lysine monohydrochloride |
L-Lysine monohydrochloride (L-Lys·HCl) is the dominant commercial form of L-lysine—an essential amino acid for humans and animals&mdas... |
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L-Methionine |
Key Notes on Sources of L-Methionine Bioavailability: L-methionine from animal sources is more bioavailable than plant sources due to the absence o... |
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Chemical |
L-Methionine plays a pivotal role in maintaining liver function and preventing lipid accumulation: It promotes fatty acid oxidation: By supporting ... |
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DL-methionine powder |
As a racemic mixture, DL-methionine exhibits different biological activities compared to its individual enantiomers:In animal organisms, only L-met... |
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DL-Alanine |
DL-Alanine is not a direct, primary food preservative like traditional preservatives (e.g., Nisin, sodium benzoate, potassium sorbate) whose core f... |
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