First report of aflatoxin in dried yam chips in Bénin
Dried yam (Dioscorea spp.) chips are widely consumed in Benin but are often attacked by molds. Invasion of food by Aspergillus flavus may lead to aflatoxin contamination. We report here the result of a survey on the sanitary quality of dried yam chips in Benin. During July and August 2000, 50 dried yam chips samples were collected from different points in the marketing chain; 10 samples were collected from each of 5 stages: producers, wholesalers, retailers, dried yam-based food sellers and consumers. Aflatoxin content was assayed by the bio-luminescence method (1) after methanol/water extraction. Aflatoxins were detected in all dried yam chip samples, with levels ranging from 2.2 to 200 ppb and a mean value of 14 ppb. An aflatoxin concentration higher than the European Union's maximum residue limit (MRL) of 4 ppb was found in 98% of the samples (N = 50), while 6% had an aflatoxin concentration higher than the World Health Organization's MRL of 20 ppb. Molds were analyzed from two samples, each with aflatoxin levels around 5 ppb, on colony unit medium specific for A. flavus (2). Aspergillus spp. were detected in the inner part of dried yam chips of both samples, with a mean level of 9,000 CFU/g. Fusarium colonies were also present but were not identified to species.
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Language: | eng |
Subjects: | Q03 - Contamination et toxicologie alimentaires, Disonycha, igname, contamination biologique, Aspergillus flavus, aflatoxine, Fusarium, http://aims.fao.org/aos/agrovoc/c_34439, http://aims.fao.org/aos/agrovoc/c_8478, http://aims.fao.org/aos/agrovoc/c_28318, http://aims.fao.org/aos/agrovoc/c_26370, http://aims.fao.org/aos/agrovoc/c_8638, http://aims.fao.org/aos/agrovoc/c_3156, http://aims.fao.org/aos/agrovoc/c_875, |
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dig-cirad-fr-4814982024-01-28T09:21:23Z http://agritrop.cirad.fr/481498/ http://agritrop.cirad.fr/481498/ First report of aflatoxin in dried yam chips in Bénin. Bassa Septime, Mestres Christian, Champiat Dominique, Hell K., Vernier Philippe, Cardwell K.. 2001. Plant Disease, 85 (9) : 1032. First report of aflatoxin in dried yam chips in Bénin Bassa, Septime Mestres, Christian Champiat, Dominique Hell, K. Vernier, Philippe Cardwell, K. eng 2001 Plant Disease Q03 - Contamination et toxicologie alimentaires Disonycha igname contamination biologique Aspergillus flavus aflatoxine Fusarium http://aims.fao.org/aos/agrovoc/c_34439 http://aims.fao.org/aos/agrovoc/c_8478 http://aims.fao.org/aos/agrovoc/c_28318 http://aims.fao.org/aos/agrovoc/c_26370 http://aims.fao.org/aos/agrovoc/c_8638 http://aims.fao.org/aos/agrovoc/c_3156 Bénin http://aims.fao.org/aos/agrovoc/c_875 Dried yam (Dioscorea spp.) chips are widely consumed in Benin but are often attacked by molds. Invasion of food by Aspergillus flavus may lead to aflatoxin contamination. We report here the result of a survey on the sanitary quality of dried yam chips in Benin. During July and August 2000, 50 dried yam chips samples were collected from different points in the marketing chain; 10 samples were collected from each of 5 stages: producers, wholesalers, retailers, dried yam-based food sellers and consumers. Aflatoxin content was assayed by the bio-luminescence method (1) after methanol/water extraction. Aflatoxins were detected in all dried yam chip samples, with levels ranging from 2.2 to 200 ppb and a mean value of 14 ppb. An aflatoxin concentration higher than the European Union's maximum residue limit (MRL) of 4 ppb was found in 98% of the samples (N = 50), while 6% had an aflatoxin concentration higher than the World Health Organization's MRL of 20 ppb. Molds were analyzed from two samples, each with aflatoxin levels around 5 ppb, on colony unit medium specific for A. flavus (2). Aspergillus spp. were detected in the inner part of dried yam chips of both samples, with a mean level of 9,000 CFU/g. Fusarium colonies were also present but were not identified to species. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/closedAccess http://catalogue-bibliotheques.cirad.fr/cgi-bin/koha/opac-detail.pl?biblionumber=166319 |
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Q03 - Contamination et toxicologie alimentaires Disonycha igname contamination biologique Aspergillus flavus aflatoxine Fusarium http://aims.fao.org/aos/agrovoc/c_34439 http://aims.fao.org/aos/agrovoc/c_8478 http://aims.fao.org/aos/agrovoc/c_28318 http://aims.fao.org/aos/agrovoc/c_26370 http://aims.fao.org/aos/agrovoc/c_8638 http://aims.fao.org/aos/agrovoc/c_3156 http://aims.fao.org/aos/agrovoc/c_875 Q03 - Contamination et toxicologie alimentaires Disonycha igname contamination biologique Aspergillus flavus aflatoxine Fusarium http://aims.fao.org/aos/agrovoc/c_34439 http://aims.fao.org/aos/agrovoc/c_8478 http://aims.fao.org/aos/agrovoc/c_28318 http://aims.fao.org/aos/agrovoc/c_26370 http://aims.fao.org/aos/agrovoc/c_8638 http://aims.fao.org/aos/agrovoc/c_3156 http://aims.fao.org/aos/agrovoc/c_875 |
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Q03 - Contamination et toxicologie alimentaires Disonycha igname contamination biologique Aspergillus flavus aflatoxine Fusarium http://aims.fao.org/aos/agrovoc/c_34439 http://aims.fao.org/aos/agrovoc/c_8478 http://aims.fao.org/aos/agrovoc/c_28318 http://aims.fao.org/aos/agrovoc/c_26370 http://aims.fao.org/aos/agrovoc/c_8638 http://aims.fao.org/aos/agrovoc/c_3156 http://aims.fao.org/aos/agrovoc/c_875 Q03 - Contamination et toxicologie alimentaires Disonycha igname contamination biologique Aspergillus flavus aflatoxine Fusarium http://aims.fao.org/aos/agrovoc/c_34439 http://aims.fao.org/aos/agrovoc/c_8478 http://aims.fao.org/aos/agrovoc/c_28318 http://aims.fao.org/aos/agrovoc/c_26370 http://aims.fao.org/aos/agrovoc/c_8638 http://aims.fao.org/aos/agrovoc/c_3156 http://aims.fao.org/aos/agrovoc/c_875 Bassa, Septime Mestres, Christian Champiat, Dominique Hell, K. Vernier, Philippe Cardwell, K. First report of aflatoxin in dried yam chips in Bénin |
description |
Dried yam (Dioscorea spp.) chips are widely consumed in Benin but are often attacked by molds. Invasion of food by Aspergillus flavus may lead to aflatoxin contamination. We report here the result of a survey on the sanitary quality of dried yam chips in Benin. During July and August 2000, 50 dried yam chips samples were collected from different points in the marketing chain; 10 samples were collected from each of 5 stages: producers, wholesalers, retailers, dried yam-based food sellers and consumers. Aflatoxin content was assayed by the bio-luminescence method (1) after methanol/water extraction. Aflatoxins were detected in all dried yam chip samples, with levels ranging from 2.2 to 200 ppb and a mean value of 14 ppb. An aflatoxin concentration higher than the European Union's maximum residue limit (MRL) of 4 ppb was found in 98% of the samples (N = 50), while 6% had an aflatoxin concentration higher than the World Health Organization's MRL of 20 ppb. Molds were analyzed from two samples, each with aflatoxin levels around 5 ppb, on colony unit medium specific for A. flavus (2). Aspergillus spp. were detected in the inner part of dried yam chips of both samples, with a mean level of 9,000 CFU/g. Fusarium colonies were also present but were not identified to species. |
format |
article |
topic_facet |
Q03 - Contamination et toxicologie alimentaires Disonycha igname contamination biologique Aspergillus flavus aflatoxine Fusarium http://aims.fao.org/aos/agrovoc/c_34439 http://aims.fao.org/aos/agrovoc/c_8478 http://aims.fao.org/aos/agrovoc/c_28318 http://aims.fao.org/aos/agrovoc/c_26370 http://aims.fao.org/aos/agrovoc/c_8638 http://aims.fao.org/aos/agrovoc/c_3156 http://aims.fao.org/aos/agrovoc/c_875 |
author |
Bassa, Septime Mestres, Christian Champiat, Dominique Hell, K. Vernier, Philippe Cardwell, K. |
author_facet |
Bassa, Septime Mestres, Christian Champiat, Dominique Hell, K. Vernier, Philippe Cardwell, K. |
author_sort |
Bassa, Septime |
title |
First report of aflatoxin in dried yam chips in Bénin |
title_short |
First report of aflatoxin in dried yam chips in Bénin |
title_full |
First report of aflatoxin in dried yam chips in Bénin |
title_fullStr |
First report of aflatoxin in dried yam chips in Bénin |
title_full_unstemmed |
First report of aflatoxin in dried yam chips in Bénin |
title_sort |
first report of aflatoxin in dried yam chips in bénin |
url |
http://agritrop.cirad.fr/481498/ |
work_keys_str_mv |
AT bassaseptime firstreportofaflatoxinindriedyamchipsinbenin AT mestreschristian firstreportofaflatoxinindriedyamchipsinbenin AT champiatdominique firstreportofaflatoxinindriedyamchipsinbenin AT hellk firstreportofaflatoxinindriedyamchipsinbenin AT vernierphilippe firstreportofaflatoxinindriedyamchipsinbenin AT cardwellk firstreportofaflatoxinindriedyamchipsinbenin |
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