First Report on Mould and Mycotoxin Contamination of Pistachios Sampled in Algeria |
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Authors: | F Fernane V Sanchis S Marín A J Ramos |
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Institution: | (1) Applied Mycology Unit, Department of Food Technology, XaRTA-UTPV, University of Lleida, Av. Rovira Roure 191, 25198 Lleida, Spain; |
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Abstract: | Mycotoxin contamination of pistachios represents a serious food safety hazard. The aim of this study was to evaluate fungal
contamination and aflatoxin (AF) and ochratoxin A (OTA) occurrence in pistachio sampled in Algeria and to study the mycotoxigenic
capacities of the isolates. A total of 31 pistachio samples were collected from retail outlets from different regions of Algeria.
The most frequently found fungi were Penicillium spp. (38%), Aspergillus section Nigri (30%) and A. flavus (22%). A total of 56.5% of A. flavus isolates were able to produce AFB1 and AFB2. No A. section Nigri uniseriate isolate was OTA producer, whereas OTA production capacity was detected in 33.3% of the A. section Nigri biseriate. At least one of the potentially ochratoxigenic species was found in 64.5% of samples. Despite the high number
of pistachio samples containing AFs and OTA-producing isolates, only two samples contained AFs (always below the EU maximum
tolerable level) and only one sample showed OTA contamination. This is the first report on the occurrence of toxigenic moulds
and mycotoxins in pistachios from Algerian market. |
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