L-methionine
For populations with increased needs (e.g., athletes, vegetarians, malnourished individuals) or those with limited dietary intake, L-methionine is available in specialized products: Dietary Supplements: L-methionine is sold as a standalone supplement (capsules, tablets, or powder) with typical dosages ranging from 500mg to 1g per serving. It is also a key component of branched-chain amino acid (BCAA) blends, protein powders (whey, plant-based), and multivitamin/mineral supplements. Fortified Foods: To address amino acid deficiencies, L-methionine is added to fortified foods such as infant formulas (to meet the essential amino acid requirements of infants), meal replacement shakes, plant-based meat alternatives (e.g., soy-based burgers), and fortified cereals. For example, infant formulas contain 20–30mg of L-methionine per 100kcal to support growth and development. Animal Feed Additives: Industrial-grade L-methionine (or DL-methionine) is a critical feed additive for poultry, swine, and aquatic animals (e.g., fish, shrimp). These animals have limited ability to synthesize methionine, so supplementation improves growth performance, feed conversion efficiency, and lean meat percentage. Feed-grade methionine is typically supplied as a dry powder or granular product, with addition levels ranging from 0.1% to 0.3% of the diet.
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L-Methionine |
Chemical and Physical Properties of L-Methionine L-Methionine has the molecular formula C₅H₁₁NO₂S and a molecular weight of 149.21. Its chemical s... |
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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 |
The α-amino group in DL-methionine has the typical reactivity of a primary amine and can participate in acylation, alkylation, and condensati... |
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L-proline |
Metabolism and Safety of L-prolineMetabolic pathway: Mainly metabolized in the liver and kidneys, it is converted into glutamate hemialdehyde throu... |
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of Fish collagen peptides |
Properties of Fish collagen peptidesHigh Absorption Rate: Due to its small molecular weight, fish collagen peptides can be directly absorbed by the... |
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