Publications by authors named "M A Ajala"
Article Synopsis
- * Modified plantain stalk (APS), enriched with amorphous alumina, showed significantly higher efficiency in adsorbing lead (II) and chromium (VI) ions from electroplating wastewater, achieving removal rates of 99.38% and 98.33%, respectively.
- * Characterization techniques indicated that APS has a greater surface area and rich functional groups that support adsorption, with the process primarily driven by chemisorption as per kinetic and adsorption models that demonstrate effective metal ion binding.
In this study, we investigated for the first time the anti-inflammatory and immunomodulatory properties of crude polysaccharide (PSHT) extracted from green marine algae . PSHT exhibited anti-oxidant activity in vitro through scavenging 1, 1-diphenyl-2-picryl hydroxyl free radical, reducing Fe/ferricyanide complex, and inhibiting nitric oxide. PSHT maintained the erythrocyte membrane integrity and prevented hemolysis.
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- Gut injury is linked to increased cell death in intestinal cells, often leading to chronic inflammatory diseases.
- This study explores the protective effects of polysaccharides from Tunisian red alga (PSGS) against toxic damage caused by hydrogen peroxide (HO) in IEC-6 cells.
- Results show that PSGS can restore cell viability and normal cell structure, and it appears to protect cells from oxidative stress and apoptosis caused by HO through its unique structural properties.
Concentrations, bioaccumulation, and health risk assessments of heavy metals in fishes from Nigeria's freshwater: a general overview.
Environ Sci Pollut Res Int
November 2022
Article Synopsis
- Heavy metals are toxic and accumulate in fish from polluted water, posing health risks for humans who consume them.
- The study highlights pollution sources in Nigeria's freshwater, identifying industrial activities as a major contributor to high levels of heavy metals like Zn, As, Cu, Fe, and Pb.
- The findings emphasize the urgent need for better management of heavy metals in water to safeguard public health.
This study was carried out to determine the concentration of selected heavy metals in common cuttlefish (Sepia officinalis) caught in the south west of Mediterranean Sea (Gulf of Gabes, Tunisia). To reach this objective, cuttlefish samples were collected from each area (Sfax and Djerba) situated along the Gulf of Gabes, and the concentrations of heavy metals (Cu, Zn, Pb, and Cd) were measured in the gills, gonads, digestive glands, and muscles. Sample preparation and quantification of the metals were accomplished via the wet digestion method and atomic absorption spectroscopy.
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