Abstract Pyruvic acid is an important organic and a key industrial raw material. It widely used in the chemical, agricultural, food fields. Candida glabrata preferred strain for pyruvic production. The waste yeast cell fermentation with C. are rich protein, amino acid, nucleic vitamins, as potential cost-effective nitrogen source In this study, of to produce using spent dry powder was evaluated...

Still [1940] compared the triosephosphate dehydrogenase of Escherichia -coli with the corresponding enzyme in yeast, and Utter & Werkman [1941] similarly compared the enzymes aldolase and isomerase of E. coli with those in miiscle and yeast. This communication extends this line of investigation to the reactions involving phosphoglyceric acid. Embden, Deuticke & Kraft [1933] and Meyerhof & Kiess...

The reactivity of radical cation carboxylic acids is investigated on the basis of mass spectrometry, infrared-vacuum ultraviolet (IR-VUV) photoionization spectroscopy, and high level correlated ab initio calculations. Their reactivity is found to be highly conformation specific and is governed by their initial charge distribution following ionization. In the present work, the radical cations of...

The question whether pyruvic acid holds a key position as an intermediate in the butanol-acetone fermentation by Clostridium acetobutylicum (Weizmann) similar to that in the alcoholic fermentation by yeast and in glycolysis by muscle has, so far, not received a decisive answer. This is mainly due to the inconsistent results obtained by different workers in this field. As in the case of corn-mea...

Electrospray ionization mass spectrometry (ESI-MS) was used to investigate product formation in laboratory experiments designed to study secondary organic aerosol (SOA) formation in clouds. It has been proposed that water soluble aldehydes derived from aromatics and alkenes, including isoprene, oxidize further in cloud droplets forming organic acids and, upon droplet evaporation, SOA. Pyruvic a...

An analysis of the dialyzable components of the pyruvic acid oxidation system of brain showed that in addition to cocarboxylase (thiamine pyrophosphate) (2), a C, dicarboxylic acid (2), and magnesium or manganese ions (3), both inorganic phosphate and “adenine nucleotide” (adenylic acid, adenosine triphosphate) (4) are required. The latter observation suggested that a cycle of phosphorylation i...

The 320 nm-band photodecarboxylation of aqueous pyruvic acid (PA), a representative of the alpha-oxocarboxylic acids widely found in the atmospheric aerosol, yields 2,3-dimethyltartaric (A) and 2-(3-oxobutan-2-yloxy)-2-hydroxypropanoic (B) acids, rather than 3-hydroxy-2-oxobutanone as previously reported. A and B are identified by liquid chromatography with UV and ESI-MS detection, complemented...