Articles

Antibiotics Sensitivity Reaction of salmonella Species Isolated from Ready-to-Eat Porridge Beans Sold in Federal Polytechnic of Oil and Gas Bonny of Rivers State

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Salmonella specie is one of the four key global causes of diarrhoeal diseases. In this research we investigated the frequency occurrence of salmonella species isolated from ready-to-eat porridge beans sold from vendors in the proximity of federal polytechnic of oil and gas bonny island. A total of 40 samples were purchased from four different food vendors in four different spots [vendor 1(The first spot), vendor 11(second spot), vendor 111(third spot) and vendor 1V  (fourth spot)] between February and May 2024.All samples were processed and analysed using standard culturebased, biochemical methods and antibiotic susceptibility test assays to confirm salmonella isolates. The highest total occurrence of heterotrophic bacteria population densities were: vendor1 4.0.0×105CFU/g; vendor11 4.4×107CFU/g, vendor111 4.5×102CFU/g and vendor 1V 4.2×109CFU/g. The highest total occurrence of salmonella population density were, for vendor1 3.9×102, Vendor11 2.7×104 , Vendor111 4.1×105,Vendor1V 4.4×103 respectively. Antibiotics susceptibility test was performed for the isolates which exhibited that all of them were susceptible to Ciprofloxacin (CPR)-5 g, Nitrofurantoin (NIT)-30 g, Oflotaxin (OFL)-5 g, were susceptible to Salmonella species. While Gentamicin (GEN)-10 g, and Cefuroxime (CXM)-5 g, were intermediate and Finally, Augmentin (AUG)-30 g, Cefuroxime (CAZ)-30 g, and Cefuroxime (CRX)-30 g were resistant to Salmonella species. Therefore, it can be stated that ready-to-eat porridge beans sold in the proximity of FPOG environment are possible route of transmission for Salmonella species. However, due to lack of intense antibiotic resistance among these bacteria, most of them can be treated with the antibiotics available in the market. Nonetheless, strict monitoring and regular surveillance is necessary.

A Study of the Suitability of Microbial Cells for the Biosorption and Bioaccumulation of Heavy Metal Removal

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Heavy metal contamination in the natural environment can occur as long-term site pollution or as surges of pollutants from wastewater discharge. It is well recognized that heavy metal discharge from the metal processing industries has a negative impact on the environment. Conventional methods of heavy metal removal from aqueous solutions are not cost-effective and produce large amounts of harmful chemical sludge. A novel and alternative approach to removing heavy metals from aqueous solutions involve the biosorption of these contaminants by non-living, metabolically inert biomass that is either derived from microorganisms or plants. One of the key elements of environmental and bioresource technologies today is biosorption. Due to their high surface-to-volume ratio, wide availability, quick kinetics of adsorption and desorption, and low cost, microorganisms—more specifically, bacteria, algae, yeasts, and fungi—have attracted increasing attention as biosorbents for the removal of heavy metals. Analyzing the removal of heavy metals from aqueous solutions utilizing diverse biological components, such as fungi, algae, yeast, and bacterial biomass, is the goal of the current study. This article discusses the advantages of heavy metal removal from waste streams, gives a brief overview of the technology’s potential for biosorption and bioaccumulation, and emphasizes the undelaying features of biosorption as well as operational factors like pH, the dose required to be given, the initial concentration, temperature, the efficiency of the treatment, and its economic significance.