Mycotoxin contamination of animal feedingstuff: detoxification by gamma-irradiation and reduction of aflatoxins and ochratoxin A concentrations

Maria Cristina D'Oca, Vita Di Stefano, Nicola Cicero, Rosa Pitonzo

Risultato della ricerca: Article

31 Citazioni (Scopus)

Abstract

Mycotoxins are fungal secondary metabolites identified in many agricultural products screened for toxigenic moulds. Theyhave been reported to be carcinogenic, teratogenic, tremorogenic, haemorrhagic and dermatitic to a wide range oforganisms. With the increasing stringent regulations for mycotoxins imposed by importing countries such as those of theEuropean Union, many cereals that are not safe for human consumption are used in formulations intended for animal feed.Gamma-rays are reported in the scientific literature to destroy ochratoxin A and aflatoxin in food crops and feed. Thepresent study provides preliminary data for establishing the effect of dose of gamma-irradiation, ranging from 0 to 15 kGy,on aflatoxins and ochratoxin A reduction in commercial animal feed. The mycotoxin levels were determined by means ofimmunoaffinity clean-up (IAC) and HPLC with fluorescence detection (HPLC-FLD). The maximum reductions found at15 kGy were 23.9%, 18.2%, 11.0%, 21.1% and 13.6% for ochratoxin A, aflatoxin B1, aflatoxin B2, aflatoxin G1 andaflatoxin G2, respectively. Results showed that the gamma-rays even at 15 kGy were not effective in the completedestruction of ochratoxin A and aflatoxins in the tested feed.
Lingua originaleEnglish
Numero di pagine6
RivistaFOOD ADDITIVES & CONTAMINANTS. PART A. CHEMISTRY, ANALYSIS, CONTROL, EXPOSURE & RISK ASSESSMENT
Volume10
Stato di pubblicazionePublished - 2014

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All Science Journal Classification (ASJC) codes

  • Food Science
  • Chemistry(all)
  • Toxicology
  • Public Health, Environmental and Occupational Health
  • Health, Toxicology and Mutagenesis

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