The influence of different fertilizers (mineral/organic) on the quantity and quality soil organic matter was monitored in long-term stationary experiments (27 years) with silage maize monoculture production Luvisol. main aim this study to investigate relationship between easily extractable glomalin (EEG), total (TG), parameters commonly used for determination quality, i.e., content humic acids ...

Objective: Chronic stress plays an important role in the etiology of many inflammatory diseases. Reactive oxygen species (ROS), a source free radicals, act as signaling molecules progression stress-related Oxidative occurs result increase radicals tissues. The damage caused by oxidative can be reduced antioxidant replacement. In our study, effect fulvic acid, powerful antioxidant, on water avoi...

(Humic/Fulvic Acid) has the capability of transferring metals to and from metallo-proteins in vivo. These proteins play a role in metal storage and sequester excess metal ions, preventing toxicity. Metallo-protein concentrations are the highest in the liver where metals accumulate in the metallo-thionein portions of this organ. Metallo-proteins can be found in many other human tissues, includin...

Humic substances are a heterogeneous class of moderate molecular weight, yellow-colored biomolecules present in all soils, sediments, and natural waters. Although humic substances are generally resistant to microbial degradation under anaerobic conditions, some microorganisms in soils and sediments can use quinone moieties in humic substances as electron acceptors. Laboratory experiments have s...

Conductivity changes of dilute aqueous humic and fulvic acids solutions were monitored after the addition of small quantities of Cu, Cd, Pb, and Zn. The solutions were stirred at a constant and reproducible rate, and measurements proceeded until stable conductivities were attained. The values were compared to KCl reference solutions treated in an identical manner, and the results showed that th...

Metal partitioning in ferrihydrite suspensions may reach equilibrium only after a long reaction time. To determine key factors controlling the kinetics, we measured Cu and Pb uptake as a function of ferrihydrite morphology, reaction temperature, metal competition, and fulvic acid concentration over a period of 2 months. X-ray microscopy, which was used to probe ferrihydrite morphology in suspen...

The disinfection by-product (DBP) formation was affected by the dissolved organic matter (DOM). Therefore, DOM properties and DBP potential of two most widely used source waters: groundwater (GW) surface water (SW), were comparatively studied in this work. results suggested that GW mainly consisted protein-like organics with smaller molecular weight (Mw) less than 3000 Da, while SW contained hu...