An enzyme-mimetic nanozyme system is reported that significantly promotes the oxidative deamination of primary amines. This work gives an example valorization 5-hydroxymethylfurfurylamine and glutamic acid, could be applied to any amino acid after optimization reaction conditions.

Suspensions of Clostridium welchii (strain SR 12) quantitatively decarboxylate the L isomers of aspartic (1) and glutamic acids (2) to ar-alanine and y-aminobutyric acid, respectively. Although a quantitative procedure for the determination of glutamic acid based upon decarboxylation with this organism has been described (3), it has been found that aspartic acid, especially in the presence of c...

Glutamic acid is an important amino that used widely in the fields of food, medicine, and agriculture. One methods glutamic production direct microbial fermentation, so genetic stability glutamic-acid-producing capacity producing strain are keys to improving concentration. Experiments were carried out using Corynebacterium glutamicum GL−6 as parental strain, with two iterations mutagenesis by a...

The possibi]ity of producing amino acids under cenditions of denitrification, i.e., with nitrate respiration as an energy-supplying system, was inyestigated using denitrifying bacteria. We found that Bacirrus 1tehenijbrmis A35 accurnulated 7-polyglutamic acid (PGA) to a concentratien ef8 mg per ml in a medium containing glllcose and ammonium chloride or glutamic acid under denitrifying conditio...

Observations in this laboratory have indicated that human subjects with malignant growths exhibit a significant elevation in plasma glutamic acid concentration (2, 5) . No such elevation was observed in subjects with benign growths, al though it has been shown that an elevated plasma glutamic acid level may be observed in clinical conditions other than malignancy (5). The results suggest that p...

OBJECTIVES Free glutamic acid has an appetite-regulating effect and studies with infant formula have suggested that free amino acids (FAA), especially glutamic acid, can downregulate intake. The content of glutamic acid and glutamine is high in breast milk but varies considerably between mothers. The aim was to investigate whether maternal anthropometry was associated with the content of the FA...

Response surface methodology (RSM) was employed to study the effects of four medium components (L-glutamic acid, citric acid, glycerol and NH4Cl) on the production of poly-γ-glutamic acid (PGA) in flask cultures by Bacillus licheniformis CCRC 12826 (ATCC 9945) with initial medium pH 6.5. The optimal PGA yield (35.34 g/L, average of four repeats) was appeared at the region where the respective c...

Braunstein and Kritzmann (1) have reported that with pigeon breast muscle any a-amino acid, with the possible exception of glycine, is active in transamination with either a-ketoglutaric or oxaloacetic acid. On the other hand, the author (2) found that transamination in pigeon breast muscle is limited to the following reactions. a (1) Z(+)-Glutamic acid + oxaloacetic acid e a-ketoglutaric acid ...

Studies of the metabolism in vivo of proline and hydroxyproline and of the related pyrrolidonecarboxylic acid are not numerous. Many earlier redearches in which attempts were made to demonstrate relationships between these compounds and glutamic acid and ornithine are not convincing because of the fact that the rat growth procedure used at that time has now been shown to be inadequate. More rec...