Relationship between the condition of home-stored peanuts and aflatoxin B1 contamination

A. Kane; N. Ba-Diop; T.S. Diack; M. Sembene; A. Delobel; A.T. Guiro

Relationship between the condition of home-stored peanuts and aflatoxin B₁ contamination

In: Mycotoxins and phycotoxins

Authors:

A. Kane

A. Kane ¹Institut de Technologie Alimentaire, P.O.Box 2765, Dakar, Sénégal; ita@sentoo.sn

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N. Ba-Diop

N. Ba-Diop ¹Institut de Technologie Alimentaire, P.O.Box 2765, Dakar, Sénégal; ita@sentoo.sn

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T.S. Diack

T.S. Diack ¹Institut de Technologie Alimentaire, P.O.Box 2765, Dakar, Sénégal; ita@sentoo.sn

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M. Sembene

M. Sembene ²Faculté des Sciences et Techniques, Université Cheikh Anta DIOP, Avenue Cheikh Anta DIOP, Dakar, Senegal

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A. Delobel

A. Delobel ³Institut de la Recherche pour le Développement, Hann, Dakar Sénégal

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A.T. Guiro

A.T. Guiro ¹Institut de Technologie Alimentaire, P.O.Box 2765, Dakar, Sénégal; ita@sentoo.sn
²Faculté des Sciences et Techniques, Université Cheikh Anta DIOP, Avenue Cheikh Anta DIOP, Dakar, Senegal

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Type:: Chapter

Pages:: 53–58

DOI:: https://doi.org/10.3920/9789086865857_005

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A study was undertaken to evaluate the relationship between different types of pest damage to peanuts at harvest and during storage and the occurrence of aflatoxin B₁. Samples of the peanut variety 73-33, were collect from peasant farmers at harvest and during storage over a 7 months period. Hand-shelled samples were assigned to various categories depending on the type and determined source of damage throughout the study and sorted out into different categories (without visible damage (healthy kernels), wrinkled or immature, discoloured, attacked by millipedes, attacked by termite and/or weevils (Caryedon serratus), black, contaminated by Aspergillus flavus, contaminated with other fungi, and infected by Rhizopus and/or Mucor). Each category was analysed for aflatoxin using AOAC Method 970.45 coupled with HPLC. Health kernels had the least aflatoxin (mean 0.22 μg/kg), followed by wrinkled kernels (49.32 μg/kg). The highest contamination was recorded in kernels infected with Aspergillus flavus (208,000 μg/kg) followed by kernels attacked by millipedes (5,400 μg/kg) and termites (4,000 ug/kg). The results show that meadow harvest (preharvest) contamination is the major source of aflatoxin contamination in the study area.

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Mycotoxins and phycotoxins

Advances in determination, toxicology and exposure management

E-Book ISBN:: 9789086865857

Publisher:: Wageningen Academic

Print Publication Date:: 30 Oct 2006

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- Life Sciences

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Relationship between the condition of home-stored peanuts and aflatoxin B1 contamination

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Mycotoxins and phycotoxins

Advances in determination, toxicology and exposure management

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Relationship between the condition of home-stored peanuts and aflatoxin B₁ contamination