DL-Aspartic acid is a racemic mixture of two stereoisomers of aspartic acid, which is an alpha-amino acid used in the biosynthesis of proteins. Here's a breakdown of its components and properties:

1. Chemical Composition

• Formula: C?H?NO?

• Molecular Weight: 133.10 g/mol

• Structure: It has two enantiomers (stereoisomers) – D-aspartic acid and L-aspartic acid. The DL form contains an equal mix of both the D- and L- forms.

2. Stereoisomers

• L-Aspartic Acid: This is the naturally occurring form of aspartic acid found in proteins and is involved in various metabolic processes, including the citric acid cycle.

• D-Aspartic Acid: This form is not incorporated into proteins but has a role in the central nervous system and endocrine system, where it is involved in the regulation of hormone release and neurotransmission.

3. Functions and Applications

• Biological Role: Aspartic acid is involved in the biosynthesis of other amino acids and biochemicals such as asparagine, arginine, lysine, methionine, threonine, isoleucine, and several nucleotides.

• Food Industry: DL-Aspartic acid is sometimes used as a food additive or supplement, where it might be used to improve the nutritional value of food products.

• Pharmaceuticals: It can be used in the production of certain medications and as a supplement for athletes or bodybuilders due to its role in protein synthesis.

• Industrial Use: It is also used in the synthesis of biodegradable polymers and as a component in some detergents.

4. Properties

• Appearance: It typically appears as a white crystalline powder.

• Solubility: Soluble in water, slightly soluble in alcohol, and insoluble in ether.

• pH: It is an acidic amino acid, and its solutions have a pH below 7.

5. Safety and Handling

• Safety: Generally recognized as safe (GRAS) when used in food products. However, as with all chemicals, it should be handled with care, avoiding inhalation or ingestion of large quantities.

DL-Aspartic acid is commonly studied in research involving amino acids and protein synthesis and is also used in various industrial applications due to its chemical properties.

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