Studies were undertaken to investigate the effect of different modified atmospheric packaging (MAP) gaseous combinations on Campylobacter and the natural microflora on poultry fillets. Skinless chicken fillets were stored in gaseous mixtures of 10%, 30%, 50%, 70% and 90% CO2 balanced with N2, 80:20% O2:N2 and 40:30:30% CO2:O2:N2 and control conditions (air) at 2 °C. Samples were analysed period...

New classes of acidic or basic ionic liquids (ILs) are gaining special attention, since the efficiency of many processes can be enhanced by the judicious manipulation of these properties. The absorption of sour gases can be enhanced by the basic character of the IL. The fluorination of the cation or the anion can also contribute to enhance the gas solubility. In this work these two characterist...

The main purpose of this study is to assess the potential fate of CO2 when it is injected in the deep subsurface for storage. In the coming year (2008), over 20 field geologic sequestration tests are being designed and scheduled for deployment in the United States. An additional 23 are ongoing or slated for deployment soon in other countries. For large-scale geologic sequestration to be deploye...

Interest in the magnitude of the solubility of carbonic acid in biological fluids dates from the beginning of inquiries into the manner of transport of COz. Of late years it has been of especial importance in the calculations of the pH of bicarbonate-containing fluids by Hasselbalch’s equation, pH = pK1’ + log. [BHCOz]. D-LCO~! The physically dissolved COz, expressed as H2C03, is calculated fro...

Introduction: A strong early Martian greenhouse atmosphere is required to account for evidence of liquid water on the surface of Mars [e.g. 1]. Many models of Mars’ atmospheric evolution incorporate magmatic outgassing fluxes of CO2 based on analogy to terrestrial magmas [2-5]. Here we investigate the solubility of carbon dioxide in Martian analogue basaltic melts at 2.0 GPa to constrain this i...

We have performed molecular dynamics simulations at constant temperature and pressure to calculate the solubility of carbon dioxide (CO2) and hydrogen sulfide (H2S) in water. The solubility of gases in water is important in several technological problems, in particular in the petroleum industry. The calculated liquid densities as function of temperature are in good agreement with experimental d...

Carboxylase and oxygenase activities of ribulose bisphosphate carboxylase purified from wheat were measured over the temperature range 5 to 35°C either at constant 02 and CO2 concentrations or where the 02 and CO2 simulated the concentrations in water equilibrated at each temperature with the same gaseous phase. At constant CO2 (14 micromolar) and 02 (0.34 millimolar), the oxygenase to carboxyl...

The direct CO2 electrochemical reduction on model platinum single crystal electrodes Pt(hkl) is studied in [C2mim(+)][NTf2(-)], a suitable room temperature ionic liquid (RTIL) medium due to its moderate viscosity, high CO2 solubility and conductivity. Single crystal electrodes represent the most convenient type of surface structured electrodes for studying the impact of RTIL ion adsorption on r...

The precipitation of magnesium hydroxy-carbonate hydrates has been suggested as a route to sequester CO2 into solids. We report the development of self-cementing compositions based on nesquehonite, MgCO3⋅3H2O, that are made from CO2-containing gas streams, the CO2 being separated from other gases by its high solubility in alkaline water, while magnesium is typically provided by waste desalinati...