Prevalence of aflatoxin B1 contamination in pre- and post-harvest maize kernels, Food products, Poultry and livestock feeds in Tamil Nadu, India

Ayyathurai Vijayasamundeeswari, Munusamy Mohankumar, Muthusamy Karthikeyan, Selvaraj Vijayanandraj, Vaikuntavasen Paranidharan, Rethinasamy Velazhahan

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9 Citations (Scopus)

Abstract

Aflatoxins, a group of mycotoxins mainly produced by Aspergillus flavus and A. parasiticus, have adverse health effects on humans and livestock that ingest aflatoxin- contaminated food products and feeds. To secure the safety of food and feed, regular monitoring of aflatoxin levels is necessary. In order to understand the magnitude of aflatoxin contamination, a survey was conducted in different agro-ecological zones of Tamil Nadu, India and 242 samples consisting of pre- and post-harvest maize kernels, food products, poultry and livestock feeds were collected from farmers' fields, poultry farms, retail shops and supermarkets and analyzed for aflatoxin B1 (AFB1) contamination by enzyme- linked immunosorbent assay (ELISA) using antiserum raised against aflatoxin B1-Bovine serum albumin (AFB1-BSA). The results indicated that 61.3% of the maize kernel samples were contaminated with AFB1 and the levels of AFB1 in 26% of the pre- and post-harvest maize kernels exceeded 20 μg/kg. The highest level of AFB1 (245 μg/kg) was recorded in post-harvest maize kernel samples. In food products AFB1 was detected only in two samples out of 30 samples tested. Furthermore, the levels ranged from 0.6 to 3.7 μg/kg. In poultry feeds, AFB1 was detected in 30 out of 53 samples and the levels ranged from 0.7 to 31.6 μg/kg. Among the 40 livestock feed samples evaluated 29 samples were contaminated with AFB1 at level ranging from 1.8 to 244.9 μg/kg.

Original languageEnglish
Pages (from-to)221-224
Number of pages4
JournalJournal of Plant Protection Research
Volume49
Issue number2
DOIs
Publication statusPublished - Jun 1 2009

Keywords

  • Aflatoxin B<sub>1</sub>
  • Enzyme-linked immunosorbent assay
  • Feed
  • Zea mays

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Soil Science
  • Plant Science

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