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Ochratoxin A in the morning and afternoon portions of urine from Coimbra and Va...
Manique, R.; Pena, A.; Lino, C. M.; Moltó, J. C.; Mañes, J.The widespread contamination of foodstuffs and beverages by mycotoxins, such as ochratoxin A (OTA), has made the monitoring of human contamination levels essential. ; http://www.sciencedirect.com/science/article/B6TCS-4RY6WKJ-1/1/4c16511b1a2109e4107233b7f0e3b98f
Determination of ochratoxin A in organic and non-organic cereals and cereal pro...
Juan, C.; Moltó, J. C.; Lino, C. M.; Mañes, J.The objective of this work was to know the occurrence of OTA in organic and non-organic cereals and cereal products from Spain and Portugal. A method based on extraction with matrix solid phase dispersion (MSPD) using octylsilica (C8) followed by liquid chromatography coupled with fluorescence detection (LC-FD) was used to determine OTA from the selected samples. Recoveries of OTA from the studied samples spike...
Determination of ochratoxin A in maize bread samples by LC with fluorescence de...
Juan, C.; Lino, C. M.; Pena, A.; Moltó, J. C.; Mañes, J.; Silveira, I.Ochratoxin A (OTA) is a secondary fungal metabolite produced by several moulds, mainly by Aspergillus ochraceus, A. carbonarius, A. niger and by Penicillium verrucosum. The present work shows the results of comparative studies using different procedures for the analysis of OTA in maize bread samples. The studied analytical methods involved extraction with different volumes of PBS/methanol, different extraction ...
Occurrence of fumonisins B1 and B2 in broa, typical Portuguese maize bread
Lino, C. M.; Silva, L. J. G.; Pena, A.; Fernández, M.; Mañes, J.Fumonisin B1 (FB1) and fumonisin B2 (FB2) are mycotoxins mainly produced by Fusarium verticillioides, and Fusarium proliferatum, fungi species most commonly isolated from maize. The natural occurrence of FB1 and FB2 in broa, typical Portuguese maize bread, was evaluated in 30 samples. Twenty five were found positive with levels ranging from 142 to 550 [mu]g kg- 1. The limit established by the European regulatio...
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