Population structure and Aflatoxin production by Aspergillus Sect. Flavi from maize in Nigeria and Ghana

Perrone, Giancarlo; Haidukowski, Miriam; Stea, Gaetano; Epifani, Filomena; Bandyopadhyay, Ranajit; Leslie, John F.; Logrieco, A.

doi:10.1016/j.fm.2013.12.005

Cited by 80 publications

(58 citation statements)

References 42 publications

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“…These include the named species Aspergillus minisclerotigenes (Pildain et al, 2008). Across the globe, several of these phylogenetically divergent fungal lineages with S-morphology produce large concentrations of both B-and G-aflatoxins (Cotty and Cardwell, 1999;Diedhiou et al, 2011;Donner et al, 2009;Perrone et al, 2014;Pildain et al, 2008;Probst et al, 2012Probst et al, , 2014.…”

Section: Aflatoxin Management Through Beneficial Fungimentioning

confidence: 99%

Biological control of aflatoxins in Africa: current status and potential challenges in the face of climate change

Bandyopadhyay

Ortega‐Beltran

Akande

et al. 2016

WMJ

246

311

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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 finally consumers. Diverse fungi within Aspergillus section Flavi contaminate crops with aflatoxins. Within these Aspergillus communities, several genotypes are not capable of producing aflatoxins (atoxigenic). Carefully selected atoxigenic genotypes in biological control (biocontrol) formulations efficiently reduce aflatoxin contamination of crops when applied prior to flowering in the field. This safe and environmentally friendly, effective technology was pioneered in the US, where well over a million acres of susceptible crops are treated annually. The technology has been improved for use in sub-Saharan Africa, where efforts are under way to develop biocontrol products, under the trade name Aflasafe, for 11 African nations. The number of participating nations is expected to increase. In parallel, state of the art technology has been developed for large-scale inexpensive manufacture of Aflasafe products under the conditions present in many African nations. Results to date indicate that all Aflasafe products, registered and under experimental use, reduce aflatoxin concentrations in treated crops by >80% in comparison to untreated crops in both field and storage conditions. Benefits of aflatoxin biocontrol technologies are discussed along with potential challenges, including climate change, likely to be faced during the scaling-up of Aflasafe products. Lastly, we respond to several apprehensions expressed in the literature about the use of atoxigenic genotypes in biocontrol formulations. These responses relate to the following apprehensions: sorghum as carrier, distribution costs, aflatoxin-conscious markets, efficacy during drought, post-harvest benefits, risk of allergies and/or aspergillosis, influence of Aflasafe on other mycotoxins and on soil microenvironment, dynamics of Aspergillus genotypes, and recombination between atoxigenic and toxigenic genotypes in natural conditions.

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Section: Aflatoxin Management Through Beneficial Fungimentioning

confidence: 99%

Biological control of aflatoxins in Africa: current status and potential challenges in the face of climate change

Bandyopadhyay

Ortega‐Beltran

Akande

et al. 2016

WMJ

246

311

View full text Add to dashboard Cite

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“…Among the different type of mycotoxins, aflatoxins (AFs) are widespread in major food crops such as maize, groundnuts, tree nuts, and dried fruits and spices as well as milk and meat products (Iqbal et al., 2015, Mutegi et al., 2009, Perrone et al., 2014). When animal feeds are infected with AF-producing fungi, AFs are introduced into animal source food chain.…”

Section: Introductionmentioning

confidence: 99%

Innovative technologies to manage aflatoxins in foods and feeds and the profitability of application – A review

Udomkun¹,

et al. 2017

Self Cite

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Aflatoxins are mainly produced by certain strains of Aspergillus flavus, which are found in diverse agricultural crops. In many lower-income countries, aflatoxins pose serious public health issues since the occurrence of these toxins can be considerably common and even extreme. Aflatoxins can negatively affect health of livestock and poultry due to contaminated feeds. Additionally, they significantly limit the development of international trade as a result of strict regulation in high-value markets. Due to their high stability, aflatoxins are not only a problem during cropping, but also during storage, transport, processing, and handling steps. Consequently, innovative evidence-based technologies are urgently required to minimize aflatoxin exposure. Thus far, biological control has been developed as the most innovative potential technology of controlling aflatoxin contamination in crops, which uses competitive exclusion of toxigenic strains by non-toxigenic ones. This technology is commercially applied in groundnuts maize, cottonseed, and pistachios during pre-harvest stages. Some other effective technologies such as irradiation, ozone fumigation, chemical and biological control agents, and improved packaging materials can also minimize post-harvest aflatoxins contamination in agricultural products. However, integrated adoption of these pre- and post-harvest technologies is still required for sustainable solutions to reduce aflatoxins contamination, which enhances food security, alleviates malnutrition, and strengthens economic sustainability.

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“…These crops and their by-products are used worldwide as raw materials for the preparation of different products, such as human food, cooking oils, and feedstuffs [1]. Many studies have documented that these crops are common substrates for mycotoxin contamination [2][3][4][5][6][7]. In recent years, mycotoxininduced food safety issues have caught great attention of the world, and among the mycotoxins, aflatoxins are the most representative toxins [8].…”

Section: Introductionmentioning

confidence: 99%

Effects of different substrates and oils on aflatoxin B1 production by Aspergillus parasiticus

Zhang

Sun

et al. 2014

Eur Food Res Technol

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Population structure and Aflatoxin production by Aspergillus Sect. Flavi from maize in Nigeria and Ghana

Cited by 80 publications

References 42 publications

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

Innovative technologies to manage aflatoxins in foods and feeds and the profitability of application – A review

Effects of different substrates and oils on aflatoxin B1 production by Aspergillus parasiticus

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