Comparative study of treatment by gamma radiation and electron beam in mycobiota and presence aflatoxins in brazil nuts.

• Grant number: 10/04803-2
• Support Opportunities: Scholarships in Brazil - Master
• Start date: August 01, 2010
• End date: July 31, 2012
• Field of knowledge: Agronomical Sciences - Food Science and Technology - Food Science
• Principal Investigator: Benedito Corrêa
• Grantee: Ednei Assunção Antunes Coelho
• Host Institution: Instituto de Ciências Biomédicas (ICB). Universidade de São Paulo (USP). São Paulo , SP, Brazil

Abstract

Despite the economic loss represented by the contamination by fungi and mycotoxins in Brazil nuts, this is an important forest product of Northern Brazil, studies are still incipient in regard to the establishment of mycoflora, the presence of aflatoxins and control methods by irradiation, especially the electrons beam. These facts motivated this present research, which aims to evaluate the effects of gamma radiation and the application of electron beam in samples of Brazil nut naturally contaminated. The specific objectives of the present study are: 1-To evaluate the mycobiota and aflatoxins in the samples contaminated with A. flavus, purchased from retail market of São Paulo; 2- To conduct sensory analysis of samples treated by the process of irradiation, 3- To compare the results obtained by the two treatments. The mycobiota of research will be done in duplicates and plated using the surface culture method in Dichloran 18% Glycerol Agar (DG18) and determination of aflatoxins by High Performance Liquid Chromatography.

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

COELHO, Ednei Assunção Antunes. Effects of gamma radiation and electron beam on samples of the Brazil nuts artificially inoculated with Aspergillus flavus.. 2013. Master's Dissertation - Universidade de São Paulo (USP). Instituto de Ciências Biomédicas (ICB/SDI) São Paulo.