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The domestication of wild yams is still common practice in West Africa. It also offers one of the few remaining opportunities to understand how farmers use their empirical knowledge to tap the genetic resources of wild plants and create products suitable for agriculture. Yam agronomists and breed...


Dumont, R.Dansi, A.Vernier, PhilippeZoundjihékpon, J.[Bioversity and domestication of yams in West Africa: Traditional practices leading to Dioscorea rotundata Poir.]Bioversity and domestication of yams in West Africa: Traditional practices leading to Dioscorea rotundata Poir.

A survey of the sanitary quality, particularly concerning aflatoxin contamination and practices of the dried yam chips food sub-sector was carried out in Benin. Producers and intermediaries of the yam chips food production sub-sector were interviewed and samples collected. Aflatoxin content was a...


Mestres, C.Bassa, S.Fagbohoun, E.Nago, M.Hell, K.Vernier, PhilippeChampiat, D.Hounhouigan, J.Cardwell, K.F.[Yam chip food subsector: hazardous practices and presence of aflatoxins in Benin]Yam chip food subsector: hazardous practices and presence of aflatoxins in Benin

Dried yam (Dioscorea spp.) chips are widely consumed in Bénin 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 Bénin. During July and August 2000, 50 dri...


Bassa, S.Mestres, C.Champiat, D.Hell, K.Vernier, PhilippeCardwell, K.[First report of aflatoxin in dried yam chips in Benin]First report of aflatoxin in dried yam chips in Benin

The processing of yam into dehydrated chips is used extensively in certain areas of West Africa to stabilize the product. However, the chips are often severely attacked by borers, which can reduce whole stocks to powder within a few months. The level of protection provided by various biological p...


Vernier, PhilippeGeorgen, G.Dossou, R.Letourmy, P.Chaume, J.[Utilization of biological insecticides for the protection of stored yam chips]Utilization of biological insecticides for the protection of stored yam chips

La filière manioc joue un rôle essentiel dans la sécurité alimentaire et l’économie des pays du Sud, surtout en milieu rural et de plus en plus en milieu urbain. Le changement climatique devrait renforcer son importance dans l’agriculture mondiale. Cet ouvrage rassemble l'ensemble des connaissanc...


Vernier, PhilippeN’Zué, BoniZakhia-Rozis, Nadine[Le manioc, entre culture alimentaire et filière agro-industrielle]Le manioc, entre culture alimentaire et filière agro-industrielle

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