Phenolic compounds and colour stability of red wines produced from Vranec Vitis vinifera L. grape variety were investigated by means of different maceration times (3, 6 and 10 days), two doses of SO2 (30 and 70 mg/L SO2), two yeasts for fermentation (Vinalco and Levuline), temperature of storage and time of aging (3, 6 and 16 months). In general, maceration time influenced the phenolics extract...

Nanocrystalline perovskite-type BaSnO3 was obtained via microwave-assisted hydrothermal route followed by annealing at variable temperature. The samples composition and microstructure were characterized. Particle size of 18–23 nm was unaffected by heat treatment at 275–700 ̋C. Materials DC-conduction was measured at variable temperature and oxygen concentration. Barium stannate exhibited n-type...

The removals of NOx by catalytic technology at low temperatures (100–300 °C) for industrial flue gas treatment have received increasing attention. However, the development of low temperature catalysts for selective catalytic reduction (SCR) of NOx with ammonia is still a challenge especially in the presence of SO2. The current status of using Mn-based catalysts for low temperature SCR of NOx wi...

Changes of the polyphenolic content, including total phenolics (TP), total flavonoids (TF), and total flavan3-ols (TF3-ols) determined by spectrophotometric methods, have been studied in Macedonian white wines from Vitis vinifera L. cv, Smederevka and Chardonnay, obtained under different vinifications and analyzed during 16 months of aging in bottles. Winemaking treatments for both varieties in...

23 Anthropogenic emissions of nitrogen oxides (NOx ≡ NO + NO2) and carbon monoxide (CO) 24 affect particulate matter (PM) air quality on an intercontinental scale by changing background 25 concentrations of oxidants (OH, ozone, H2O2) and thus increasing the oxidation rate of sulfur 26 dioxide (SO2) to sulfate and NOx to nitrate. We conduct sensitivity simulations with the GEOS27 Chem chemical t...