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Occurrence of Black Aspergilli and Ochratoxin A on Grapes in Italy

CRA-VIT Centro di Ricerca per la Viticoltura, Viale XXVIII aprile 26, I-31015 Conegliano (TV), Italy
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Toxins 2010, 2(4), 840-855; https://doi.org/10.3390/toxins2040840
Received: 3 March 2010 / Revised: 14 April 2010 / Accepted: 20 April 2010 / Published: 21 April 2010
(This article belongs to the Special Issue Ochratoxins)
Ochratoxin A (OTA) in wine is linked to contamination by several Aspergillus species. In 2003–2007, grape samples collected in Italy were surveyed for the presence of OTA and OTA-producing fungi. A. niger aggregate was the prevalent species. A. carbonarius, which is considered the main source of OTA in grapes, was mostly found in Southern Italy. The year and the environment had an important influence on the development of the black Aspergillus populations. Testing with ELISA showed OTA to be present in about 30% of the samples. Samples from Southern Italy showed the highest occurrence (45%) and also the highest OTA concentration, sometimes higher than 2 mg/L. The values decreased progressively the further North the samples were taken. View Full-Text
Keywords: Aspergillus section Circumdati; Aspergillus section Nigri; grapevine; ochratoxin A Aspergillus section Circumdati; Aspergillus section Nigri; grapevine; ochratoxin A
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Lucchetta, G.; Bazzo, I.; Dal Cortivo, G.; Stringher, L.; Bellotto, D.; Borgo, M.; Angelini, E. Occurrence of Black Aspergilli and Ochratoxin A on Grapes in Italy. Toxins 2010, 2, 840-855.

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