Title: Detection of Aspergillus spp. and determination of the levels of aflatoxin B1 in rice imported to Bushehr, Iran
Abstract:Aflatoxins (B 1 , B 2 , G 1 and G 2 ) are hepatotoxic metabolites produced by Aspergillus flavus on a number of agricultural commodities. Their levels were studied in rice samples imported to Iran thr...Aflatoxins (B 1 , B 2 , G 1 and G 2 ) are hepatotoxic metabolites produced by Aspergillus flavus on a number of agricultural commodities. Their levels were studied in rice samples imported to Iran through a southern port in Bushehr. Aflatoxins analysis was performed by solvent extraction, immunoaffinity clean-up and determination using high performance liquid chromatography (HPLC) equipped with post-column photochemical reactor and fluorescence detector. Among 152 samples analyzed, 75% showed levels of aflatoxin B1 (AFB1) contamination. However, there was no sample with AFB 1 above maximum tolerated level (MTL) of 5 ng/g assigned by Institute of Standard and Industrial Research of Iran (ISIRI). AFB 1 concentrations in the samples was 0.09 to 3.3 ng/g. Out of the 152 samples analyzed, about 76.97% were contaminated with total aflatoxin (AFT) with the mean of 0.671 ng/g which is lower than MTL of AFT in rice (30 ng/g) assigned by (ISIRI). AFT concentration ranged from 0.15 to 4.27 ng/g. Contamination of aflatoxin in imported rice was dissimilar between different months. The highest levels of AFB 1 and AFT were detected in rice samples imported in September, while the lowest levels were in rice imported during November. Key words : Iran, aflatoxins, food safety, rice.Read More
Publication Year: 2012
Publication Date: 2012-05-10
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 7
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