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Occurrence of Fusarium Mycotoxins in Cereal Crops and Processed Products (Ogi) from Nigeria.


ABSTRACT: In Nigeria, maize, sorghum, and millet are very important cash crops. They are consumed on a daily basis in different processed forms in diverse cultural backgrounds. These crops are prone to fungi infestation, and subsequently may be contaminated with mycotoxins. A total of 363 samples comprising of maize (136), sorghum (110), millet (87), and ogi (30) were collected from randomly selected markets in four agro-ecological zones in Nigeria. Samples were assessed for Fusarium mycotoxins contamination using a multi-mycotoxin liquid chromatography-tandem mass spectrometry (LC-MS/MS) method. Subsequently, some selected samples were analysed for the occurrence of hidden fumonisins. Overall, 64% of the samples were contaminated with at least one toxin, at the rate of 77%, 44%, 59%, and 97% for maize, sorghum, millet, and ogi, respectively. Fumonisins were the most dominant, especially in maize and ogi, occurring at the rate of 65% and 93% with mean values of 935 and 1128 ?g/kg, respectively. The prevalence of diacetoxyscirpenol was observed in maize (13%), sorghum (18%), and millet (29%), irrespective of the agro-ecological zone. Other mycotoxins detected were deoxynivalenol, zearalenone, and their metabolites, nivalenol, fusarenon-X, HT-2 toxin, and hidden fumonisins. About 43% of the samples were contaminated with more than one toxin. This study suggests that consumption of cereals and cereal-based products, ogi particularly by infants may be a source of exposure to Fusarium mycotoxins.

SUBMITTER: Chilaka CA 

PROVIDER: S-EPMC5127138 | biostudies-literature | 2016 Nov

REPOSITORIES: biostudies-literature

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Occurrence of Fusarium Mycotoxins in Cereal Crops and Processed Products (Ogi) from Nigeria.

Chilaka Cynthia Adaku CA   De Boevre Marthe M   Atanda Olusegun Oladimeji OO   De Saeger Sarah S  

Toxins 20161118 11


In Nigeria, maize, sorghum, and millet are very important cash crops. They are consumed on a daily basis in different processed forms in diverse cultural backgrounds. These crops are prone to fungi infestation, and subsequently may be contaminated with mycotoxins. A total of 363 samples comprising of maize (136), sorghum (110), millet (87), and <i>ogi</i> (30) were collected from randomly selected markets in four agro-ecological zones in Nigeria. Samples were assessed for <i>Fusarium</i> mycotox  ...[more]

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