Suarez Quiroz Mirna Leonor, Gonzalez Rios Oscar, Barel Michel, Guyot Bernard, Galindo-Schorr Sabine, Guiraud Joseph-Pierre.
2005. Influence of coffee processing, water activity, temperature and pH on mould growth and ochratoxin A production in coffee.
In : 20th International Conference on Coffee Science, 11-15 October 2004, Bangalore, India = 20ème Colloque Scientifique International sur le Café ; 20. Internationales Wissenshaftliches Kolloquium über Kaffee ; 20e Coloquio Cientifico Internacional sobre el Café. ASIC
Résumé : Ochratoxin A (OTA) is the main mycotoxic contamination known in coffee. OTA occurrence in coffee beans can be due to both environmental and processing conditions. The incidence of tree post-harvest process (traditional wet processing, ecological wet processing and dry natural processing) on mould grown and OTA production by strains of A. ochraceus and A. niger was evaluated and the effects of water activity (Aw), temperature and pH and their interactions on (a) growth and ochratoxin A production on a green coffee extract medium, (b) ochratoxin A production on raw coffee by A. ochraceus were investigated. The method used to produce green coffee does not have any effect on Aspergillus ochraceus and A. niger growth ability and toxigenesis. However, temperature and especially Aw are very important factors that need to be controlled during drying and storage.
Mots-clés Agrovoc : fève de café, contamination biologique, traitement, ochratoxine, séchage, stockage
Classification Agris : Q03 - Contamination et toxicologie alimentaires
Q02 - Traitement et conservation des produits alimentaires
Auteurs et affiliations
- Suarez Quiroz Mirna Leonor, Instituto Tecnologico de Veracruz (MEX)
- Gonzalez Rios Oscar, CIRAD-CP-CAFE (FRA)
- Barel Michel, CIRAD-CP-CACAO (FRA)
- Guyot Bernard, CIRAD-CP-CAFE (FRA)
- Galindo-Schorr Sabine, UM2 (FRA)
- Guiraud Joseph-Pierre, UM2 (FRA)
Autres liens de la publication
Source : Cirad - Agritrop (https://agritrop.cirad.fr/529360/)
[ Page générée et mise en cache le 2024-03-28 ]
