Monosodium glutamate , specific

A variety of bacterial species have been used for almost 40 years in the large-scale fermentative production of amino acids for industrial uses. The Corynebacteria have been most widely used in this application as a result of their propensity to overproduce and excrete very high concentrations of amino acids under specific process conditions and their early development for monosodium glutamate production. However, other organisms including E. coli have also been successfully used in the production of amino acids such as phenylalanine. 

A specification for monosodium glutamate is contained in the Food Chemicals Codex (FCC). The EINECS number for monosodium glutamate is 205-538-1. 

Sodium chloride/salt Sodium nitrite Sodium/potassium nitrate Monosodium glutamate/MSG/Vetsin specific name for non-nutritive sweeteners... 

A major selectivity advantage of biological catalysts over traditional systems includes the ability to form single products (chemical selectivity) as well as single optical isomers (stereoselectivity). Specific examples where biological routes are preferred commercially include fermentative processes for the amino acids monosodium glutamate (MSG), lysine, aspartic acid, citric acid and phenylalanine (5). Many other chemicals have also been produced by fermentative processes (6). 

Waxman, D.J., P.A. Ram, N.A. Pampori, and B.H. Shapiro (1995). Growth hormone regulation of male-specific rat liver P450s 2A2 and 3A2 Induction by intermittent growth hormone pulses in male but not female rats rendered growth hormone deficient by neonatal monosodium glutamate. Mol. Pharmacol. 48, 790-797. 

Pampori, N.A. and B.H. Shapiro (1994). Overexpression of CYP2C11, the major male-specific form of hepatic cytochrome P450, in the presence of nominal pulses of circulating growth hormone in adult male rats neonatally exposed to low levels of monosodium glutamate. J. Pharmacol. Exp. Ther. 271, 1067-1073. 

Waxman, D.J., J.J. Morrissey, J.N. MacLeod, and B.H. Shapiro (1990). Depletion of serum growth hormone in adult female rats by neonatal monosodium glutamate treatment without loss of female-specific hepatic enzymes P450 2d (I1C12) and steroid 5 alpha-reductase. Endocrinology 126, 712-720. 

Researchers theorize that the reactions may be the result of allergies to certain ingredients in the foods. In particular, they are likely to occur among people who have specific allergies to monosodium glutamate or who have asthma. 

The configuration of naturally occurring monosodium glutamate, MSG, which has a specific rotation of +24° is S. Is the assignment of configuration based upon the sign of the optical rotation correct ... 

In animals the specific taste umami, associated with savory foods, rehes on glutamate, monosodium... 

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