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Toxins 2018, 10(2), 77; https://doi.org/10.3390/toxins10020077

Multiple Mycotoxins in Rice: Occurrence and Health Risk Assessment in Children and Adults of Punjab, Pakistan

1
Health Biotechnology Division, National Institute for Biotechnology and Genetic Engineering (NIBGE), Faisalabad 38000, Pakistan
2
Department of Biotechnology NIBGE, Pakistan Institute of Engineering and Applied Sciences, Nilore, 45650, Islamabad, Pakistan
3
Laboratory of Food Analysis, Department of Bioanalysis, Faculty of Pharmaceutical Sciences, Ghent University, Ghent 9000, Belgium
*
Author to whom correspondence should be addressed.
Received: 12 December 2017 / Revised: 4 February 2018 / Accepted: 7 February 2018 / Published: 10 February 2018
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Abstract

Mycotoxin contamination in rice can create a health risk for the consumers. In this study, the measurement of 23 mycotoxins in rice samples (n = 180) was performed using a validated LC–MS/MS method. A food frequency questionnaire was used to get rice consumption data for the assessment of mycotoxin dietary exposure, before calculating the health risk in adults and children of north and south regions of the Pakistani Punjab province. The prevalence of aflatoxin B1 (56%), aflatoxin B2 (48%), nivalenol (28%), diacetoxyscirpenol (23%), fumonisin B1 (42%), zearalenone (15%), HT-2 toxin (10%), deoxynivalenol (8%), and ochratoxin A (6%) was estimated in samples with a mean concentration range between 0.61 and 22.98 µg/kg. Aflatoxin degradation by traditional Pakistani cooking recipes was evaluated and observed to be 41–63%. The dietary exposure to aflatoxins exceeded the tolerable daily intake at all levels, and ochratoxin A and zearalenone posed health risk at high contamination and high consumption levels. The margin of aflatoxin B1 exposure ranged between 10 and 69 in adults and 10 and 62 in children. The mean cancer risk by aflatoxin B1 exposure was 0.070 (adults) and 0.071 (children) cases/year/100,000 people in South Punjab population, and 0.122 (adults) and 0.127 (children) cases/year/100,000 people in North Punjab population. This study will provide new insights for the planning and management of mycotoxins in Pakistan. View Full-Text
Keywords: LC–MS/MS; consumption; cooking effect; dietary exposure; aflatoxins; margin of exposure; cancer risk LC–MS/MS; consumption; cooking effect; dietary exposure; aflatoxins; margin of exposure; cancer risk
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Majeed, S.; De Boevre, M.; De Saeger, S.; Rauf, W.; Tawab, A.; Fazal-e-Habib; Rahman, M.; Iqbal, M. Multiple Mycotoxins in Rice: Occurrence and Health Risk Assessment in Children and Adults of Punjab, Pakistan. Toxins 2018, 10, 77.

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