Aflatoxin contamination in different fractions of rice from Pakistan and estimation of dietary intakes

被引:45
作者
Iqbal S.Z. [1 ]
Asi M.R. [2 ]
Ariño A. [3 ]
Akram N. [1 ]
Zuber M. [1 ]
机构
[1] Department of Applied Chemistry, Government College, University Faisalabad
[2] Toxicology Lab, Department of Plant Protection Division, Nuclear Institute for Agriculture and Biology Faisalabad, Faisalabad
[3] Department of Animal Production and Food Science, University of Zaragoza, Zaragoza
关键词
Aflatoxins; Dietary intake; HPLC; Rice fractions;
D O I
10.1007/s12550-012-0131-1
中图分类号
学科分类号
摘要
The purpose of this study was to determine the distribution of aflatoxins in rice milling fractions and to estimate dietary intakes. A total of 413 rice samples (paddy 58, parboiled 69, brown 84, white 93, and broken 109) were analyzed by HPLC with fluorescence detector. The results showed that 64 % paddy (16.35±1.67 μg/kg), 38 % parboiled (14.20±2.04 μg/kg), 33 % brown (9.85±1.25 μg/kg), 42 % white (7.10±1.39 μg/kg), and 50 % broken (8.5±1.71 μg/kg) rice samples were contaminated with aflatoxins. It was found that paddy rice was most contaminated with aflatoxins while white rice was least contaminated. The percentage of samples exceeding EU maximum contents for total aflatoxins in rice (4 μg/kg) varied from 14 to 36 % when compared to the analyzed rice fractions. The total estimated amount of aflatoxin intake for average rice consumers ranged from 19.1 to 26.6 ng/kg body weight/day, much higher than the reference value of 1 ng/kg body weight/day. This is the first report discovering that rice is a major contributor to the dietary intake of aflatoxins in Pakistan. © Society for Mycotoxin Research and Springer 2012.
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页码:175 / 180
页数:5
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