Glutamic Acid

CAS NO.: 56-86-0

Molecular Formula: C₅H₉NO₄                             Molecular Weight: 147.13

Molecular Structure:

 

Property:

The density of Glutamic Acid is 1.538. The melting point is 205 ºC and the Alpha is 32 º (c=10,2N HCl). The water solubility is 7.5g/l (20℃). Glutamic Acid is white crystals or crystalline powder. Glutamic Acid has slightly characteristic taste and acid taste.

Glutamic Acid is freely soluble in Formic Acid, slightly soluble in water, practically insoluble in ethanol and in ether. Glutamic Acid dissolves in diluted Hydrochloric Acid and in diluted Nitric Acid.

Glutamic Acid is one of the 20 proteinogenic amino acids and its codons are GAA and GAG.

Glutamic Acid is a non-essential amino acid. The carboxylate anions and salts of Glutamic Acid are known as Glutamates.

Specifications：

Item	Index
Specific Rotation [(Alpha)]20/D	-31.0 to -32.2 Degree (C=10 in 2N HCl)
Chloride (Cl)	Not more than 0.10%
Heavy Metals (Pb)	Not more than 10 PPM
Loss on Drying	Not more than 0.20%
Residue on Ignition	Not more than 0.10%

Usage:

1. Neurotransmitter

Glutamic Acid is the most abundant excitatory neurotransmitter in the mammalian nervous system. At chemical synapses, Glutamate Acid is stored in vesicles. Nerve impulses trigger release of glutamate from the pre-synaptic cell.

2.Brain nonsynaptic glutamatergic signaling circuits

Extracellular Glutamic Acid in drosophila brains has been found to regulate postsynaptic glutamate receptor clustering, via a process involving receptor desensitization.

3.GABA precursor

Glutamic Acid also serves as the precursor for the synthesis of the inhibitory GABA in GABA-ergic neurons. This reaction is catalyzed by Glutamic Acid Decarboxylase (GAD), which is most abundant in the cerebellum and pancreas.

4.Flavor enhancer

Free Glutamic Acid is present in a wide variety of foods, including cheese and soy sauce and is responsible for one of the five basic tastes of the human sense of taste (umami). Glutamic Acid is often used as a food additive and flavour enhancer in the form of its sodium salt, Monosodium Glutamate (MSG).

5.Nutrient

All meats, poultry, fish, eggs, dairy products, as well as kombu are excellent sources of Glutamic Acid. Some protein-rich plant foods also serve as sources. Ninety-five percent of the dietary glutamate is metabolized by intestinal cells in a first pass.

6.Plant growth

Auxigro is a plant growth preparation that contains 30% Glutamic Acid.

Package and Storage:

Glutamic Acid is packed in inner packing: polyethylene bag; outer packing: paper drums; qty/drum: 25kg. Glutamic Acid should be stored in cool and air place.

Keyword:

Glutamic Acid, α-Amino-Glutaric Acid