Galloyl-Coenzyme A, 4-0-/?-D-Glucosidogalloyl-Coenzyme A, Thioester, 4-0-/?-D-Glucosidogalloyl Hydroxamic Acid, N-Succinimidyl 4-0-/?-D-Glucosidogallate, Gallotannins Galloyl-CoA, a potential intermediate in the biosynthesis of gallotannins, has been prepared via N-succinimidyl 4-0-/?-D-glucosidogallate and 4-0-/?-D-glucosidogalloyl-CoA. Besides a major absorption band at 261 nm, the UV-spectra...

Acid dissociation constant (pKa) of some para-substituted benzohydroxamic, 4-XC6H4CONHOH, and N-methyl parasubstituted benzohydroxamic acids, 4XC6H4CON(OH)CH3, where X = H, CH3, CH3O, NO2, Cl, have been determined spectrophotometrically by nucleophilic substitution reactions of pnitrophenyl acetate with hydroxamate ions at 27± 0.1C. All reactions in this study follow pseudo-first order kinetics...

Aspergillus fungi produce mycotoxins that are detrimental to human and animal health. Two sections of aspergilli particular importance cereal food crops such as corn barley. section Flavi species like A. flavus parasiticus aflatoxins, while Circumdati ochraceus sclerotiorum ochratoxin Mitigating these toxins in feed is a critical ongoing worldwide effort. We have previously investigated biosynt...

In this study, 2-hydroxy-3-naphthalene hydroxamic acid (NHA) was used as a collector in microflotation experiments. By comparing the flotation performance of NHA with that sodium oleate (NaOL) and salicylhydroxamic (SHA) commonly industry, separation bastnaesite calcite studied. Potentiodynamic (zeta) measurements, Fourier transform infrared spectroscopy (FTIR) measurements X-ray photoelectron ...