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Hell, K.Mutegi, C.[Aflatoxin control and prevention strategies in key crops of Sub-Saharan Africa.]Aflatoxin control and prevention strategies in key crops of Sub-Saharan Africa.

Aflatoxin contamination of crops is frequent in warm regions across the globe, including large areas in sub-Saharan Africa. Crop contamination with these dangerous toxins transcends health, food security, and trade sectors. It cuts across the value chain, affecting farmers, traders, markets, and ...


Bandyopadhyay, RanajitOrtega-Beltran, A.Akande, A.Mutegi, C.Atehnkeng, J.Kaptoge, L.Senghor, A.L.Adhikari, B.N.Cotty, P.J.[Biological control of aflatoxins in Africa: current status and potential challenges in the face of climate change]Biological control of aflatoxins in Africa: current status and potential challenges in the face of climate change

Maize, the main dietary staple in Kenya, is one of the crops most susceptible to contamination by aflatoxin. To understand sources of aflatoxin contamination for home grown maize, we collected 789 maize samples from smallholder farmers’ fields in Eastern and South Western, two regions in Kenya re...


Mahuku, George S.Nzioki, H.S.Mutegi, C.Kanampiu, F.Narrod, C.Makumbi, Dan[Pre-harvest management is a critical practice for minimizing aflatoxin contamination of maize]Pre-harvest management is a critical practice for minimizing aflatoxin contamination of maize

A survey was conducted in Nairobi, Nyanza and Western provinces in Kenya between March and July2009 with 1263 peanut products sampled out of which 705 samples underwent microbial analysis. Thestudy aimed at determining the incidence of fungal species e emphasis on Aspergillus section Flavi eassoc...


Wagacha, M.Mutegi, C.Karanja, L.W.Kimani, J.Christie, M.E.[Fungal species isolated from peanuts in major Kenyan markets: emphasis on Aspergillus section Flavi]Fungal species isolated from peanuts in major Kenyan markets: emphasis on Aspergillus section Flavi

Aflatoxins are highly toxic metabolites of several Aspergillus species widely distributed throughout the environment. These toxins have adverse effects on humans and livestock at a few micrograms per kilogram (μg/kg) concentrations. Strict regulations on the concentrations of aflatoxins allowed i...


Mutegi, C.Cotty, P.J.Bandyopadhyay, Ranajit[Prevalence and mitigation of aflatoxins in Kenya (1960-to date)]Prevalence and mitigation of aflatoxins in Kenya (1960-to date)

Aspergillus flavus has long been considered to be an asexual species. Although a sexual stage was recently reported for this species from in vitro studies, the amount of recombination ongoing in natural populations and the genetic distance across which meiosis occurs is largely unknown. In the cu...


Islam, M.S.Callicott, K.A.Mutegi, C.Bandyopadhyay, RanajitCotty, P.J.[Aspergillus flavus resident in Kenya: high genetic diversity in an ancient population primarily shaped by clonal reproduction and mutation-driven evolution]Aspergillus flavus resident in Kenya: high genetic diversity in an ancient population primarily shaped by clonal reproduction and mutation-driven evolution

Aflatoxins are noxious secondary metabolites, of certain fungal species, found in food and feed. Contamination of a commodity with aflatoxins is associated with production and storage losses, and subsequently less food availability. Aflatoxins can also pose human health risks and represent a barr...


Udomkun, PatchimapornMutegi, C.Assfaw Wossen, TesfamichealAtehnkeng, J.Nabahungu, N.L.Njukwe, E.Vanlauwe, BernardBandyopadhyay, Ranajit[Occurrence of aflatoxin in agricultural produce from local markets in Burundi and Eastern Democratic Republic of Congo]Occurrence of aflatoxin in agricultural produce from local markets in Burundi and Eastern Democratic Republic of Congo

Peanuts are prone to various types of deterioration during storage which renders them unsuitable for consumption and trade resulting in large economic losses. Peanut kernels of Homabay Local, Valencia Red, ICGV-SM 12991 and ICGV-SM 99568 varieties were stored for six months in jute, polypropylene...


Mutegi, C.Wagacha, M.Christie, M.E.Kimani, J.Karanja, L.W.[Effect of storage conditions on quality and aflatoxin contamination of peanuts (Arachis hypogaea L.)]Effect of storage conditions on quality and aflatoxin contamination of peanuts (Arachis hypogaea L.)

The population and diversity of fungal species and levels of aflatoxin contamination were investigated in 228 marketed peanut samples; 140 from formal and 88 from informal markets, in Kericho and Eldoret towns of Kenya. Ground pea- nut samples were cultured on Modified Dichloran Rose Bengal (MDRB...


Nyirahakizimana, H.Mwamburi, L.Wakhisi, J.Mutegi, C.Christie, M.E.Wagacha, M.[Occurrence of Aspergillus species and aflatoxin contamination in raw and roasted peanuts from formal and informal markets in Eldoret and Kericho towns, Kenya]Occurrence of Aspergillus species and aflatoxin contamination in raw and roasted peanuts from formal and informal markets in Eldoret and Kericho towns, Kenya

Peanut kernels of Homabay Local, Valencia Red, ICGV-SM 12991 and ICGV-SM 99568 cultivars were storedfor six months in jute, polypropylene and polyethylene bags to assess the effect of storage bags, temperature andR.H. on fungal population and aflatoxin contamination. Moisture content (M.C.), fung...


Wagacha, M.Mutegi, C.Christie, M.E.Karanja, L.W.Kimani, J.[Changes in fungal population and aflatoxin levels and assessment of major aflatoxin types in stored peanuts (Arachis hypogaea Linnaeus)]Changes in fungal population and aflatoxin levels and assessment of major aflatoxin types in stored peanuts (Arachis hypogaea Linnaeus)

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