Manganese Blocks Intracellular Trafficking of Shiga Toxin and Protects Against Shiga Toxicosis

Infections with Shiga toxin (STx)–producing bacteria cause more than a million deaths each year and have no definitive treatment. To exert its cytotoxic effect; STx invades cells through retrograde membrane trafficking; escaping the lysosomal degradative pathway. We found that the widely available metal manganese (Mn2+) blocked endosome-to-Golgi trafficking of STx and caused its degradation in […]

Hexavalent chromium removal from aqueous medium by activated carbon prepared from peanut shell: Adsorption kinetics; equilibrium and thermodynamic studies

Activated carbon was prepared from peanut shell by chemical activation with KOH. Unoxidized activated carbon was prepared in nitrogen atmosphere which was then heated in air at a desired temperature to get oxidized activated carbon. The prepared carbons were characterized for surface area and pore volume and utilized for the removal of Cr(VI) from aqueous […]

The study of ultrasonic-assisted aqueous enzymatic extraction of oil from peanut by response surface method

Based on the optimum ultrasonic temperature and time parameters obtained from single-factor experiment; the response surface analysis method is employed to design and optimize the parameters in the experiment. The optimum parameters obtained from response surface analysis are as follows: enzyme additive amount 1.7%; hydrolysis time 3.8 h; hydrolysis temperature 56 °C; materials to water […]

Mediterranean nuts: origins; ancient medicinal benefits and symbolism

The varieties reviewed include almonds; walnuts; hazelnuts; pine nuts and pistachios.Results and conclusionsLike other foods; nuts have a wide variety of cultural connections to the areas where they grow and to the people who live there or eat them. History; symbolism and legends reveal the ancient tradition of nuts and how they are related to […]

Effects of pyrolysis conditions on the porous structure development of date pits activated carbon

Activated carbons were prepared from biomass of Algerian date pits for developing efficient and cheap adsorbents in the aim to remove heavy metals from waste water. Carbon adsorbents were obtained following two successive treatments: pyrolysis under dry nitrogen flow and physical activation under wet nitrogen flow. Pyrolysis process was optimized by varying some operating parameters […]