L-Threonine Powder

Basic Information

• Chemical Formula: C₄H₉NO₃
• Molecular Weight: 119.12
• CAS Registry Number: 72-19-5
• EINECS Registry Number: 200-774-1
• Appearance: White crystals or crystalline powder

Physical and Chemical Properties

• Density: 1.307 g/cm³ (at 25/4℃)
• Melting Point: Approximately 255-256℃
• Boiling Point: 345.80℃ at 760 mmHg
• Flash Point: 162.94℃
• Solubility: Easily soluble in water (200g/L, 25℃), insoluble in methanol, ethanol, ether, and chloroform

Biological Activity and Functions

1. Essential Amino Acid: L-Threonine is an essential amino acid that the human body cannot synthesize and must be obtained from food.
2. Protein Balance: It helps the body maintain protein balance and plays an important role in the formation of collagen and elastin.
3. Nitrogen Balance and Growth: It is essential for maintaining nitrogen balance in the body and promoting normal growth and development.
4. Health Benefits: It also has positive effects on maintaining the functions of the cardiovascular system, liver, central nervous system, intestines, and immune system.

Applications

1. Food Industry: When heated with glucose, it can produce caramel and chocolate flavors, imparting a flavor-enhancing effect.
2. Feed Additive: As a feed enhancer, L-Threonine is added to feeds based primarily on wheat, barley, and other grains.
3. Industrial Applications: It can be used as a solvent, cleanser, and synthetic raw material, providing chemical solutions for related industries.
4. Cosmetic Industry: Due to its hydroxyl group structure, it may have applications in cosmetics.

Storage Conditions

• Stability: Stable under normal temperature and pressure, found in flue-cured tobacco leaves, burley tobacco leaves, and tobacco smoke.
• Storage Method: Packaged in brown wide-mouthed glass bottles, stored in a cool, dry place away from light.

Synthesis Methods

The industrial production of L-Threonine mainly includes three methods: synthetic methods, fermentation methods, and protein hydrolysis methods. Currently, the fermentation method is advocated for production.

Precautions

• As a biologically active substance, L-Threonine should be handled strictly according to usage instructions and safety standards to avoid health issues or safety accidents caused by improper use.