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Dust of grains and malts as a source of ochratoxin A exposure

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Abstract

Ochratoxin A (OTA) was found more frequently and in higher concentrations (range 0.05–9.9 µg/kg) in dust samples than in corresponding samples of barley (n=23) and malt (n=9), which contained only trace amounts. Feed pellets and meals, prepared out of malt rootlets and dust fractions, contained OTA up to 6.01 µg/kg. Serum samples from seven malt factory workers showed OTA levels between 0.13 and 2.6 ng/ml. Higher levels in autum (median 0.58 ng/ml) than in summer (median 0.34 ng/ml) indicate that handling of barley in past-harvest time and an increased exposure to dusts might be responsible for these findings.

Zusammenfassung

Ochratoxin A (OTA) wurde wesentlich häufiger und in höheren Konzentrationen (0,05–9,9 µg/kg) in Staubproben als in entsprechenden Braugerste- und Malzmustern (n=23 bzw. 9) nachgewiesen. Futterpellets und -mehle aus Malzkeimen und Stäuben enthielten OTA bis zu 6,01 µg/kg. Blutserumproben von 7 Mitarbeitern einer Mälzerei wiesen OTA-Werte zwischen 0,13 und 2,6 ng/ml auf. Die OTA-Medianwerte von 0,34 ng/ml im Sommer bzw. 0,58 ng/ml im Oktober deuten auf einen Zusammenhang mit der Staubexposition über die Getreidelager hin.

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Gareis, M., Meussdoerffer, F. Dust of grains and malts as a source of ochratoxin A exposure. Mycotox Res 16 (Suppl 1), 127–130 (2000). https://doi.org/10.1007/BF02942999

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  • DOI: https://doi.org/10.1007/BF02942999

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