DL-Methionine

DL-Methionine is a synthetic form of the essential amino acid methionine, composed of equal parts D- and L-isomers. It is widely recognized for its role in protein synthesis, metabolism support, and overall health maintenance across various industries.

Chemical Properties

Chemical Formula: C5H11NO2S

CAS Number: 59-51-8

Molecular Weight: 149.21 g/mol

Appearance: White crystalline powder or flakes with a characteristic sulfur odor

Solubility: Slightly soluble in cold water, easily soluble in hot water, and almost insoluble in organic solvents like ether and ethanol

pH Sensitivity: Functions as a zwitterion in water, contributing to its amphoteric nature

Melting Point: 284°C (dec.)

Boiling Point: 306.9±37.0 °C (Predicted)

Biological Functions

DL-Methionine is crucial for numerous biological processes:

Protein Synthesis: It is one of the essential amino acids required for protein synthesis in the human body.

Antioxidant Properties: DL-Methionine has antioxidant effects, helping to protect cells from oxidative stress.

Heavy Metal Chelation: It can bind to heavy metals, aiding in their detoxification.

Immune Function: Supports immune system function by promoting the production of antibodies and immune cells.

Hair, Skin, and Nail Health: Methionine is involved in the synthesis of keratin, which is essential for healthy hair, skin, and nails.

Applications

Animal Nutrition: DL-Methionine is used in animal feed to promote growth and improve feed efficiency. It is commonly added to poultry, swine, and ruminant feeds.

Human Nutrition: It is used as a dietary supplement to support liver function, improve wound healing, and treat various health conditions.

Pharmaceuticals: Used in the treatment of liver disorders and as a component in some medications.

Cosmetics: Incorporated into cosmetic products for its skin-conditioning properties.

Safety and Handling

Toxicity: DL-Methionine is generally recognized as safe (GRAS) when used within recommended limits.

Handling: Store in a cool, dry place away from direct sunlight and moisture. Use appropriate protective equipment to prevent dust inhalation and eye contact.

Market Value and Applications

The demand for DL-Methionine continues to grow due to its diverse applications in animal feed, pharmaceuticals, cosmetics, and human nutrition. Its importance in supporting animal and human health ensures its demand across these sectors.

Conclusion

DL-Methionine is a vital amino acid with significant applications in various industries. Its role in protein synthesis, antioxidant defense, and immune function makes it an essential component in numerous products and formulations.