Journal of experimental botany, 68(13), 3351-3363 (2017-09-02)
Vitamin B1, which consists of the vitamers thiamin and its phosphorylated derivatives, is an essential micronutrient for all living organisms because it is required as a metabolic cofactor in several enzymatic reactions. Genetic diversity of vitamin B1 biosynthesis and accumulation
A modified fluorometric method for the determination of thiamine in food is described. The procedure is simple, reproducible, does not demand costly outfit and chemicals and is not susceptible to interference. The recovery of added thiamine is good.
The Journal of biological chemistry, 279(17), 17054-17062 (2004-02-06)
The biosynthesis of thiamine in Escherichia coli requires the formation of an intermediate thiazole from tyrosine, 1-deoxy-d-xylulose-5-phosphate (Dxp), and cysteine using at least six structural proteins, ThiFSGH, IscS, and ThiI. We describe for the first time the reconstitution of thiazole
Experimental and toxicologic pathology : official journal of the Gesellschaft fur Toxikologische Pathologie, 51(4-5), 389-391 (1999-08-13)
The horse-radish peroxidase catalyzes oxidation of thiamine in vitro in presence of hydroperoxide hydrogen (H2O2) and olenic acid (LOOH) (as an emultion) with formation of thiochrome (2,7-dimethyl-8-(oxyetyl-5,6-dihydrothiazolo (2,3-a) pyrimido (4,5-d) pyrimidine, oxodihydrothiochrome (2,7dimethyl-oxo-8-(-2-oxo-ethyl)-5,6,9a, 10-tetrahydrothiazolo (2,3-a) pyrimido (4,5-d) pyrimidine and thiamine
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association, 49(5), 1086-1091 (2011-01-29)
In this work, an efficient in situ solvent formation microextraction (ISFME) was combined with stopped-flow injection spectrofluorimetry (SFIS) for the determination of copper. In the proposed approach, thiamine was oxidized with copper(II) to form hydrophobic and highly fluorescent thiochrome (TC)
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