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L-Methionine

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L-Methionine

L-Methionine-White crystalline powder with a distinctive sulfurous odor and slightly bitter taste.

Soluble in water; stable under neutral or weakly acidic conditions; prone to decomposition under high temperature and strong oxidation. Store in a sealed container away from light. Not applicable for processes involving strong oxidation or high temperature.

L-Methionine is the naturally active form. It is readily absorbed by the human body and boasts far higher bioavailability than D-methionine.

PRODUCT DETAILS

Function

  • Raw Material for Protein Synthesis

As a sulfur-containing amino acid, L-Methionine participates in in-vivo protein synthesis and maintains the stability of the tertiary structure of proteins. 

It is an important constituent of keratin, enzymes and antibodies.

  • Methyl Donor and Cardiovascular Protection

L-Methionine takes part in methylation reactions in the human body and provides methyl groups for the synthesis of DNA and neurotransmitters. 

In addition, L-Methionine facilitates the remethylation of homocysteine, reduces serum homocysteine levels and protects the cardiovascular system.

  • Antioxidation and Detoxification

L-Methionine acts as a precursor for the synthesis of glutathione and taurine to strengthen the body's antioxidant capacity. 

It is involved in hepatic detoxification reactions, accelerates the metabolism of heavy metals and medicines, and protects liver cells.

  • Lipid Metabolism Regulation

L-Methionine promotes the transport and oxidative decomposition of fat in the liver to prevent fatty liver disease. 

It also regulates blood lipids and lowers cholesterol levels.

  • Skin, Hair & Nail Health

L-Methionine participates in keratin synthesis, sustains healthy hair and nails, and alleviates hair loss and brittle nails.


Application

  • Food Industry

Nutrient fortifier, applied in infant formula foods, dairy products, sports nutrition food and baked goods.

  • Feed Industry

Feed additive for livestock, poultry and aquaculture. 

It supplements essential amino acids, boosts growth, improves feed conversion ratio and enhances meat quality.

  • Health Supplements

Liver-protecting products, homocysteine regulating supplements, hair & skin health supplements, sports nutrition supplements.

  • Pharmaceutical Field

Raw material for amino acid infusions, used for adjuvant treatment of protein deficiency and hepatic insufficiency.


Specification

Product

L-Methionine

Item

Specification

Appearance

White crystals or crystalline powder

Identification

Ninhydrin

Assay,% (on dried matter)

≥ 99.0~101.0

pH

5.4~6.1

Loss on drying,%

≤ 0.50 (max)

Residue on ignition, %

≤ 0.10 (max)

Chloride (CL),%

≤ 0.02 (max)

Sulfate % (SO₄), %

≤ 0.02 (max)

Heavy metals (as Pb),%

≤ 0.002 (max)




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