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Aflatoxins and ochratoxin A in export quality raisins collected from different areas of Pakistan.
Authors: Asghar MA, Ahmed A, Iqbal J.
- Journals: Food Addit Contam., Raisins
- Pages: 1585-90.
- Volume: Part B Surveill. Dec 12
- Year: 2015
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During 2012-2014, 170 samples of export quality raisins were collected from different vendors in Pakistan. The collected samples were analyzed for the presence of aflatoxins (AFs) and Ochratoxin A (OTA) contamination using HPLC technique. The LOD and LOQ of AFs/OTA were 0.12/0.10 and 0.36/0.30 µg kg-1, respectively. Only 5% of the samples were contaminated with AFs, ranging 0.15-2.58 µg kg-1 with a mean of 0.05±0.26 µg kg-1. None of the raisin samples exhibited AFs contamination above the maximum limit (ML=4 µg kg-1) as set by the EU. About 72% of the samples were contaminated with OTA, ranging 0.14-12.75 µg kg-1 with a mean of 2.10±1.9 µg kg-1. However, in 95.3% of the tested samples, OTA level was lower than the ML of 10 µg kg-1 as regulated by the EU. Apparently a strict and continuous monitoring plan, including regulatory limits, improves food safety and quality for all types of commodities.