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Ochratoxin A in adult population of Lleida, Spain: presence in blood plasma and consumption in different regions and seasons

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Issue date
2011
Author
Coronel, María Bernarda
Sanchís Almenar, Vicente
Ramos Girona, Antonio J.
Marín Sillué, Sònia
Suggested citation
Coronel, María Bernarda; Sanchís Almenar, Vicente; Ramos Girona, Antonio J.; Marín Sillué, Sònia; . (2011) . Ochratoxin A in adult population of Lleida, Spain: presence in blood plasma and consumption in different regions and seasons. Food and Chemical Toxicology, 2011, vol. 49, núm. 10, p. 2697-2705. https://doi.org/10.1016/j.fct.2011.07.045.
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Abstract
Ochratoxin A (OTA) levels in blood plasma, as well as the consumption of possibly contaminated foodstuffs by adult inhabitants, were determined in three seasons in the plain and the mountain regions of the province of Lleida (Spain). Daily intake of the toxin was estimated in order to evaluate the exposure of the studied population. OTA was extracted from plasma through liquid–liquid extraction followed by immunoaffinity chromatography columns clean-up. Detection was done through HPLC-fluorescence, and limit of detection was 0.018 ng/mL. Consumption data of the participants were obtained by means of a food frequency questionnaire. Occurrence of OTA in plasma was 100%. Range was 0.06–10.92 ng/mL, and median was 0.50 ng/mL. Differences between genders, regions or seasons were not significant, whereas significant differences were found among age groups. Regarding food consumption, significant differences were found between genders, but not between age groups, regions, or seasons. OTA plasma levels were not correlated with food consumption. Distributions of the intake estimations based on plasma levels differed from those based on food consumption and contamination. Mean and median values of the daily intake estimations were below the latest provisional tolerable daily intake of 14 ng/kg bw/day, but some high percentiles were above it.
URI
http://hdl.handle.net/10459.1/58626
DOI
https://doi.org/10.1016/j.fct.2011.07.045
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Food and Chemical Toxicology, 2011, vol. 49, núm. 10, p. 2697-2705
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  • Articles publicats (Tecnologia dels Aliments) [502]
  • Publicacions de projectes de recerca del Plan Nacional [2271]

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  • Assessment of the exposure to ochratoxin A in the province of Lleida, Spain 

    Coronel, María Bernarda; Sanchís Almenar, Vicente; Ramos Girona, Antonio J.; Marín Sillué, Sònia (Elsevier, 2009)
    Exposure to ochratoxin A (OTA) of 279 blood donors of nine localities of the province of Lleida (Spain) was assessed. OTA levels were detected in the blood plasma of the participants by HPLC-fluorescence detection with ...
  • Exposure assessment to ochratoxin A in Catalonia (Spain) based on the consumption of cereals, nuts, coffee, wine, and beer 

    Coronel, María Bernarda; Marín Sillué, Sònia; Cano Sancho, German; Ramos Girona, Antonio J.; Sanchís Almenar, Vicente (Taylor & Francis, 2012)
    Ochratoxin A (OTA) was analysed in composite samples of cereal-based baby foods, beer, breakfast cereals (corn- and rice and wheat-based), loaf bread, peanuts and pistachios. Foodstuffs were collected in hypermarkets and ...
  • Ochratoxin A and its metabolite ochratoxin alpha in urine and assessment of the exposure of inhabitants of Lleida, Spain 

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    Ochratoxin A (OTA) as well as its metabolite ochratoxin α (OTα) were detected in human urine in order to assess the exposure to OTA of a group of 72 adult inhabitants of the city of Lleida (Spain). Urine samples were ...

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