Aflatoxin B1, ochratoxin A and zearalenone in sorghum grains marketed in Tunisia
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A total of 64 samples of sorghum (37 Tunisian sorghum samples and 27 Egyptian sorghum samples) were collected during 2011 – 2012 from markets in Tunisia. Samples were analysed for contamination with aflatoxin B1, ochratoxin A and zearalenone by High-Performance Liquid Chromatography Coupled with Fluorescence Detection (HPLC-FLD). Aflatoxin B1 was found in 38 samples in the range 0.03 – 31.7 μg kg − 1 . Ochratoxin A was detected in 24 samples with concentrations ranging from 1.04 to 27.8 μg kg − 1 . Zearalenone was detected in 21 samples and the concentration varied between 3.7 and 64.5 μg kg − 1 . ANOVA analysis of the influence of the country of origin on the incidence and concentration of mycotoxins in the samples studied showed no significant difference ( P > 0.05) between the two batches of samples for each of the three mycotoxins studied. The studied mycotoxins contaminate sorghum and may also co-exist because of the diversity of the mycobiota in this cereal.
Is part ofFood Additives & Contaminants: Part B: Surveillance, 2018, vol. 11, núm. 2, p. 103-110
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Influence of temperature, water activity and incubation time on fungal growth and production of ochratoxin A and zearalenone by toxigenic Aspergillus tubingensis and Fusarium incarnatum isolates in sorghum seeds Lahouar, Amani; Marín Sillué, Sònia; Crespo Sempere, Ana; Saïd, Salem; Sanchís Almenar, Vicente (Elsevier, 2017)The major objective of this study was to describe the effect of water activity and temperature on radial growth and production of ochratoxin A (OTA) and zearalenone (ZEA) on sorghum grains of three Aspergillus tubingensis and ...
Effects of temperature, water activity and incubation time on fungal growth and aflatoxin B1 production by toxinogenic Aspergillus flavus isolates on sorghum seeds Lahouar, Amani; Marín Sillué, Sònia; Saïd, Salem; Sanchís Almenar, Vicente; Crespo Sempere, Ana (Elsevier, 2016)Sorghum, which is consumed in Tunisia as human food, suffers from severe colonization by several toxigenic fungi and contamination by mycotoxins. The Tunisian climate is characterized by high temperature and humidity ...
Lahouar, Amani; Crespo Sempere, Ana; Marín Sillué, Sònia; Saïd, Salem; Sanchís Almenar, Vicente (Elsevier, 2015)The objective of this study was to characterize the mycoflora of sorghum grains commercialized in the Tunisian retail market and to identify aflatoxins (AFs), ochratoxin A (OTA) and zearalenone (ZEA) producing species. ...