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ISSN: 2375-3005

American Journal of Microbiology and Biotechnology

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Microbial Deterioration of Painted Wall Surfaces in Wukari, Taraba State, Nigeria

American Journal of Microbiology and Biotechnology
Vol.4 , No. 4, Publication Date: Aug. 8, 2017, Page: 31-34

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Authors

[1]	Ositadinma Chonyere Ugbogu, Department of Microbiology, Faculty of Pure and Applied Sciences, Federal University Wukari, Nigeria.
[2]	Ibrahim Awache, Department of Microbiology, Faculty of Pure and Applied Sciences, Federal University Wukari, Nigeria.
[3]	Dawn Ify Agwaranze, Department of Microbiology, Faculty of Pure and Applied Sciences, Federal University Wukari, Nigeria.
[4]	Alloysius Chibuike Ogodo, Department of Microbiology, Faculty of Pure and Applied Sciences, Federal University Wukari, Nigeria.
[5]	Andefiki Ubandoma, Department of Microbiology, Faculty of Pure and Applied Sciences, Federal University Wukari, Nigeria.
[6]	Michael Nosano Yakubu, Department of Microbiology, Faculty of Pure and Applied Sciences, Federal University Wukari, Nigeria.

Abstract

Bacterial and fungal biodeteriogens of painted wall surfaces in Wukari, Taraba State were investigated. Two (02) samples were randomly collected each from nine (09) buildings at different locations, totaling eighteen (18) samples from Wukari and the Federal University Wukari campus. These buildings were observed for visible discoloration, viscous loss and foul smell. The samples were collected by scraping the biodeteriorated painted walls using a new razor blade and the scraps were aseptically transferred into sterile sampling bottles, and immediately transferred to the laboratory for further analysis. Samples from the conical flask were serially diluted and isolation and identification of bacteria and fungi were done subsequently using standard techniques. The bacterial count at the various sampling sites ranged from 1.64×10⁸ – 2.89×10⁷ cfu/g. The predominant bacterial species associated with the deterioration of the painted walls were Bacillus species. The fungal species isolated were Aspergillus species (66.67%), Penicillium species (16.67%) and Mucor circinelloides (16.67%). It is likely that the biocides incorporated in the paints were no longer active after sometime. There is the need for building owners to periodically repaint the surfaces since some of the organisms isolated are potential pathogens and their build-up in the deteriorated surfaces may pose public health hazards to the community.

Keywords

Painted Walls, Biodeteriogens, Deterioration and Public Health

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