Beck, Jay V. (Brigham Young University, Provo, Utah), and Fred M. Shafia. Effect of phosphate ion and 2,4-dinitrophenol on the activity of cell suspensions of Thiobacillus ferrooxidans. J. Bacteriol. 88:850-857. 1964.-The rate of oxidation of ferrous salts or elemental sulfur by aged cell suspensions, phosphate-depleted cells, or 2,4-dinitrophenol (DNP)-treated cells of Thiobacillus ferrooxidan...

The study was planned to assess botanic origin, antioxidant power, antimicrobial activity and physicochemical properties of four honey samples were collected in Turkey. melissopalynologic results revealed that sample 1 2 are polyfloral, others unifloral. Total content phenolic (116.47-1711.13 mg GAE/100 g) flavonoids (1.46 - 27.25 CAE/100 analysed, the activities measured by ferrous ion chelati...

background and aim: 2,4-dichlorophenol (dcp) is a compound  generated in a variety of industrial processes and also by chlorine disinfection of water polluted with phenolic compounds . dumping of dcp into the environment and water resources is of great concern because of the compound's intense odor and toxicity. dcp is very soluble and resistant to biodegradability so it cannot be removed ...

When plants are threaten by microbial attacks or treated with elicitors, alkalization of extracellular space is often induced and thus pH-dependent extracellular peroxidase-mediated oxidative burst reportedly takes place, especially at the site of microbial challenge. However, direct stimulus involved in activation of peroxidase-catalyzed oxidative burst has not been identified to date. Here, w...

New antibiotics, mannopeptins A and B, were isolated from the fermented broth of Streptomyces platensis strain FS-351. Ferrous ion is essential for the antibiotic production, since no productivity was noted with media containing less than 0.11 mM ferrous ion and maximum production was achieved at a concentration of 1.8 mM. The antibiotics are basic glycopeptides with relatively high molecular w...

Abstract Finger millets are important coarse grains that exhibit high levels of phenolic compounds and antioxidant activities among other cereals. Grains subjected to a number thermal treatments this could affect the contents bioactivities compounds. The aim present study was determine finger millet flour foods, namely porridges Pittu several such as roasting, parboiling, parboiled roasting ope...

Chrysanthemum morifolium Ramat is traditionally used as both medicine and food in China. In this study, extracts of C. Hang Ju No. 1 (No. 1) 2 2) were produced using four different solvents: 95% ethanol, ethyl acetate, n-hexane distilled water. total, eight types analyzed for extraction yields total flavonoids, polyphenols, glycans, reducing sugars, chlorogenic acids. The antioxidant capacities...

AIM The antioxidant and pharmacological effects of hawthorn have mainly been attributed to the polyphenolic contents. The aim of this research is to determine some bioactive compounds and antioxidant properties of hawthorn aqueous and ethanol extracts of leaves, flowers, and ripened fruits. MATERIALS AND METHODS For this purpose, antioxidant activities of extracts were assessed on DPPH•, ABTS...

The haemolytic activity of iron-dextran complex is found to be a function of time, temperature, pH, and concentration. The lytic action is enhanced by small amounts of added ferrous sulphate. The lytic action is inhibited by chelating agents such as citrate and sequestrene salts, which bind ionic iron, but not by ferric citrate or ferric sequestrene which do not bind iron. The ionised iron cont...