ISSN 2375-0723
African Journal of Food Science Research ISSN 2375-0723 Vol. 8 (1), pp. 001-007, January, 2020. © International Scholars Journals
Full Length Research Paper
Health implications of toxigenic fungi found in two Nigerian staples: guinea corn and rice
Makun Hussaini Anthony1*, Gbodi Timothy Ayinla2, Akanya Olufunmilayo Helmina2, Salako A. Ezekiel3 and Ogbadu Godwin Haruna4
1Department of Biochemistry, Federal University of Technology, Minna..
2Department of Biochemistry, Federal University of Technology, P.M.B 65, Minna, Niger State, Nigeria.
3Department of Crop Production, Federal University of Technology, P.M.B 65, Minna, Niger State, Nigeria.
4Sheda Science and Technology Complex, Federal Ministry of Science and Technology, Abuja, Nigeria.
Accepted 17 June, 2019
Abstract
A total of one hundred and forty eight fungi isolated from both guinea corn (67) and rice (81) in a previous fungal and mycotoxin survey in Niger State, Nigeria, were tested for toxicity potential in white albino mice. Of all these, 64.2% were found to produce toxic metabolites that were lethal to mice and were mainly species of Aspergillus spp, Fusarium spp, Penicillium spp and Trichoderma spp. Others include Syncephalastrum spp, Alternaria spp, Phoma spp, Curvularia lunata, Colletotrichum spp, Geotrichum candidum and Helminthosporium spp, Cladosporium werneckil, and Mucor spp and the bacteria Cryptococcus neoformis. The novel, most toxigenic fungi found contaminating these two staples were Fusarium verticillioides (Sacc.) Nirenberg, previously known as F.moniliforme Sheldon (CABI Biosciences is IMI 392668).The extract of the fungus caused lethality to mice at 40 mg /kg b. wt. The health implications of these toxic microbes in our diets were discussed.
Key words: Guinea corn, rice, Nigeria, toxigenic fungi, mycotoxins.