American Journal of Food Technology1557-45711557-458XAcademic Journals Inc.10.3923/ajft.2011.613.630AlwakeelSuaad S.NasserLaila A.8201168The occurrence of harmful aflatoxins from agricultural products varies with geographic location, farming practices and processing. To date, no data was reported from Saudi Arabia on mycotoxin content of nuts and edible seeds. Forty samples of edible nuts and dried seeds were randomly collected from different locations in Al-Riyadh, Saudi Arabia. Fungi were detected by seed-plate and dilutions plate method and were cultured on glucose-Czapek's agar, sucrose-Czapek's agar and starch yeast agar. Purified fungal isolates were identified morphologically. Mycotoxins were extractedusing chloroform and detected by thin layer chromatography. Bacterial analysis was done using total plate count method. There was a predominance of A. niger and A. flavus in all medium types. Aflatoxin B1 (8.5 μg mL-1) was detected in peanuts containing A. flavus. Aflatoxin B1 (1.7 μg mL-1) and B2 (1.7 μg mL-1) was detected in sunflower seeds containing A. terreus. T2 toxin (2.8 mg mL-1) was detected in pumpkinseeds containing Stachybotrys chartarum and DAS (2.4 μg mL-1) was detected in a salted peanut sample containing Trichthecium roseum. Four nut samples showed contamination with bacteria. Turkish pine seeds and American walnut had total plate counts of 12x10. Pakistani pine seeds and Iranian salted pistachio had TPC of 3x10. Listeria monocytogenes was isolated from American walnut samples. Government authorities for food safety consumption should continue to monitor and set appropriate guidelines and information initiatives for public knowledge on the safety of these agricultural products whole year round.]]>Abdulkadar, A.H., A. Al-Ali and J.H. Al-Jedah,200219666670Al-Ahmad, M., N. Manna, V. Ng, M. Ribeiro, G.M. Liss and S.M. Tarlo,201065245255Alwakeel, S.S.,200912637642Bundy, K.W., J.F. Gent, W. Beckett, M.B. Bracken, M.B. Belanger, E. Triche and B.P. Leaderer,2009Penicillium associated with peak expiratory flow variability in asthmatic children.]]>1032630Caldas, E.D., S.C. Silva and J.N. Oliveira,200236319323Cheraghali, A.M., D. Yazdanpanah, N. Doraki, G. Abouhossain and M. Hassibi et al.,200745812816Dorner, J.W.,200825203208Ehrlich, K.C., K. Kobbeman, B.G. Montalbano and P.J. Cotty,2007Aspergillus species from Thailand.]]>114153159Freitas, R., L.A. Nero and A.F. Carvalho,20099230693073Hedayati, M.T., S. Mayahi, D.W. Denning,2009Aspergillus species in houses of asthmatic patients from Sari City, Iran and a brief review of the health effects of exposure to indoor Aspergillus.]]>168481487Hedayati, M.T., A.C. Pasqualotto, P.A. Warn, P. Bowyer and D.W. Denning,2007Aspergillus flavus: Human pathogen, allergen and mycotoxin producer.]]>15316771692Hope, A.P. and R.A. Simon,200728262270Hossain, M., S. Ara and M.Z. Rahman,2004720142017Joosten, H.M., J. Goetz, A. Pittet, M. Schellenberg and P. Bucheli,2001Aspergillus carbonarius on coffee cherries.]]>653944Kenjo, T., Y. Ishide, K. Aoyama and M. Ichinoe,2007489096, (In Japanese)Mahmoud, A.L.E., A.M. Sayed and A.A. Abou-El-Alla,20014611613Meyer, K., E. Usleber, E. Martbauer and J. Bauer,2000113L374L379Molyneux, R.J., N. Mahoney, J.H. Kim and B.C. Campbell,2007207278Mwanda, O.W., C.F. Otieno and E. Omonge,200582320324Nieminen, S.M., R. Korki, S. Auriola, M. Toivola and H. Laatsch et al.,2002Aspergillus fumigatus mycotoxins on growth medium and some building materials.]]>6848714875Ochial, E., K. Kamei, A. Watanabe, M. Nagayoshi and Y. Tada et al.,2008S. chartarum causes pulmonary arterial hypertension in mice.]]>89201208Pacheco, A.M. and V.M. Scussel,2007551108711092Palacios-Cabrera, H.A., H.C. Menezes, B.T. Iamanaka, F. Canepa and A.A. Teixeira et al.,200770164171Park, D.L.,2002504173179Reboux, G., A.P. Bellanger, S. Roussel, F. Grenouillet and S. Sornin et al.,200919446453Seo, H.S., M. Hirano, J. Shibato, R. Rakwal, K. Hwang and J. Yosl,20085646654673Shariat, C. and H.R. Collard,200737475Soubra, L., D. Sarkis, C. Hilan and P. Verger,200926189200Wang, J. and X.M. Liu,200720483487Wild, C.P. and Y.Y. Gong,2010317182Williams, J.H., T.D. Phillips, P.E. Jolly, J.K. Stiles, C.M. Jolly and D. Aggarwal,20048011061122Yazdanpanah, H., T. Mohammadi, G. Abouhossain and A.M. Cheraghali,20054311351139Youssef, M.S., O.M.O. El-Maghraby and Y.M. Ibrahim,2008Arachis hypogeae L.) seeds.]]>4349360Youssef, M.S., E.M. El-Mahmoudy and M.A.S. Abubakr,20083520534