Volume 9 Issue 1

Studies on Fungi Associated with Naira Notes from Selected Markets in Ojo Local Government Area of Lagos State, Nigeria

Tolulope

Abstract

Money is a medium of exchange for commodities and services. However, money can house microorganisms such as bacteria and fungi if not managed appropriately. Fungi are ubiquitous organisms that are resistant to harsh environments, could be associated with money, and might cause adverse effects on health when handled improperly. This research aimed at isolating and identifying fungi associated with naira notes from selected markets in Lagos State. A total of 50 sampled naira notes (N20, N50, N100, N200, and N500) were randomly collected from merchants at Okoko and Iyana-Iba markets in Ojo local government, Lagos State. Pour-plate and serial dilution were the methods utilized in the isolation of fungi. In addition, the antifungal activity of ketoconazole, fulcin, and hand sanitizer was tested against the isolated fungi using the agar-well diffusion technique. Aspergillus flavus, A. fumigatus, A. niger, Lasiodiplodia theobromae, Mucor sp., Penicillium notatum, and Rhizopus sp. were isolated and identified from sampled naira notes. In terms of antifungal activity, ketoconazole effectively suppressed the growth of all isolated fungi except L. theobromae and Rhizopus sp., whereas fulcin and hand sanitizer showed no inhibitory effect on fungal growth. Due to the potential adverse health effects associated with some fungal spores, it is imperative that adequate sanitary measures be put in place while handling money.

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