Roussos Sevastianos auteur aut IRD Zaouia N. auteur aut IRD Salih G. auteur aut IRD Tantaoui Elaraki A. auteur aut IRD Lamrani K. auteur aut IRD Cheheb M. auteur aut IRD Hassouni H. auteur aut IRD Verhé Frédéric auteur aut IRD Perraud Gaime Isabelle auteur aut IRD Augur Christopher auteur aut IRD Ismaili Alaoui M. auteur aut IRD text journalArticle eng text/pdf born digital access During the 2003 and 2004 olive oil production campaigns in Morocco, 136 samples from spoiled olive and olive cake were analyzed and 285 strains were isolated in pure culture. Strains included 167 mesophilic strains belonging to ten genera: Penicillium, Aspergillus, Geotrichum, Mucor, Rhizopus, Trichoderma, Alternaria, Acremonium, Humicola, Ulocladium as well as 118 thermophilic strains isolated in 2003 and 2004, mainly belonging to six species: Aspergillus fumigatus, Paecilomyces variotii, Mucorpusillus, Thermomyces lanuginosus, Humicola grisea, and Thermoascus aurantiacus. Penicillium and Aspergillus, respectively, 32.3 and 26.9% of total isolates represented the majority of mesophilic fungi isolated. When considering total strains (including thermotolerant strains) Aspergillus were the predominant strains isolated; follow-up studies on mycotoxins therefore focused primarily on aflatoxins (AFs) and ochratoxin A (OTA) from the latter strains. All isolated Aspergillus flavus strains (9) and Aspergillus niger strains (36) were studied in order to evaluate their capacity to produce AFs and OTA, respectively, when grown on starch-based culture media. Seven of the nine tested A. flavus strains isolated from olive and olive cake produced AF B1 at concentrations between 48 and 95 mu g/kg of dry rice weight. As for the A. niger strains, 27 of the 36 strains produced OTA. specialized aflatoxin Aspergillus immunoaffinity moulds ochratoxin MAROC 084 50 6 500-506 2006 1613-4125 https://www.documentation.ird.fr/hor/fdi:010053922 10.1002/mnfr.200600005 1613-4125 [F B010053922] https://www.documentation.ird.fr/hor/fdi:010053922 https://www.documentation.ird.fr/intranet/publi/depot/2011-11-28/010053922.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2006-08-10 2017-08-23 fdi:010053922 fre