O.M. Immanuel

Microbial activities contribute significantly to the global economic burden of corrosion. The sulphatereducing bacteria (SRB) are major cause of biocorrosion in anoxic environments. This study investigated the corrosion inhibition efficiency of Gmelina arborea extracts against corrosion of carbon steel caused by SRB isolated from injection and produced water from Bonga oilfield. The SRB isolation, antimicrobial assay and corrosion experiments were carried out in a Coy anaerobic chamber.

Insects of the taxonomic order Coleoptera are recognized for considerable cellulolytic activity in their digestive tract. However, the cellulolytic activity of the gut microbiome of the African palm weevil (Rhynchoporus phoenicis), has not been reported. Thus, this study aimed at isolating cellulose degrading bacteria from the gut of the insect’s larva and assessingtheir cellulolytic activities. The larva of the insect was dissected and inoculated in carboxymethylcellulose-Congo red (CMC-CR) agar medium and incubated at room temperature (28±2) for 14 days.