CAS 3211-76-5 L-Selenomethionine L-SeMet For Dietary Supplements And Animal Nutrition

L-Selenomethionine

Description

L-Selenomethionine is the selenium analogue of the essential amino acid L-methionine, where a selenium atom replaces the sulfur atom. It serves as a primary organic source of selenium in biological systems and is considered the most bioavailable form of selenium for humans and animals. In nature, it is synthesized by plants and microorganisms and incorporated into proteins in place of methionine. As a supplement, it is commonly produced through fermentation or chemical synthesis.

Specification Table

Features

• High Bioavailability: The most efficiently absorbed and retained form of selenium.
• Organic Selenium Source: Naturally occurring form found in selenium-enriched plants (e.g., Brazil nuts, garlic, broccoli).
• Antioxidant Activity: Precursor to selenoproteins like glutathione peroxidase, which protects cells from oxidative damage.
• Supports Immune Function: Essential for proper immune response and thyroid hormone metabolism.
• Stable Form: Less toxic and more stable than inorganic selenium salts (e.g., selenite, selenate).

Applications

1. Dietary Supplements:

   • Used in multivitamins, mineral formulas, and standalone selenium supplements for human nutrition.
   • Supports antioxidant defense, thyroid health, and cognitive function.

2. Animal Nutrition:

   • Added to feed for poultry, swine, cattle, and aquaculture to improve selenium status, reproduction, and disease resistance.
   • Enhances meat and egg selenium content for human consumption.

3. Clinical Research:

   • Studied for roles in cancer prevention, cardiovascular health, and anti-aging.
   • Marker for selenium status in nutritional studies.

4. Cosmetics & Skincare:

   • Incorporated in anti-aging creams and lotions for its antioxidant properties.

5. Food Fortification:

   • Used to enrich foods (e.g., cereals, beverages) in regions with selenium-deficient soils.

Packing & Storage

Packing

• 25kg Cardboard drums  

Storage

• Conditions: Store in a cool, dry, well-ventilated place.
• Humidity: Protect from moisture. Keep container tightly sealed.
• Light Sensitivity: Store in opaque containers or dark place to avoid degradation.
• Shelf Life: 24 months from manufacture date when stored properly.

Handling Precautions

• Avoid inhalation, ingestion, or skin contact. Use personal protective equipment (gloves, mask, goggles).
• Keep away from strong oxidizing agents and acids.
• Dispose of according to local regulations for selenium-containing compounds.