African Journal of
Biotechnology

  • Abbreviation: Afr. J. Biotechnol.
  • Language: English
  • ISSN: 1684-5315
  • DOI: 10.5897/AJB
  • Start Year: 2002
  • Published Articles: 12191

Full Length Research Paper

Inhibition of growth and aflatoxin production of Aspergillus parasiticus by guaraná (Paullinia cupana Kunth) and jucá (Libidibia ferrea Mart) extracts

Maristela Martins
  • Maristela Martins
  • Laboratory of Mycotoxicology and Food Contaminants - Labmico, Food Science and Technology Department, Center of Agricultural Sciences, Federal University of Santa Catarina, Florianopolis, SC, Brazil
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Ariane Mendonca Kluczkovski
  • Ariane Mendonca Kluczkovski
  • Faculty of Pharmaceutical Sciences, Federal University of Amazonas, Manaus, AM, Brazil
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Tatiane Pereira de Souza
  • Tatiane Pereira de Souza
  • Faculty of Pharmaceutical Sciences, Federal University of Amazonas, Manaus, AM, Brazil
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Carolina Pacheco
  • Carolina Pacheco
  • Faculty of Pharmaceutical Sciences, Federal University of Amazonas, Manaus, AM, Brazil
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Geovana Dagostim Savi
  • Geovana Dagostim Savi
  • Laboratory of Mycotoxicology and Food Contaminants - Labmico, Food Science and Technology Department, Center of Agricultural Sciences, Federal University of Santa Catarina, Florianopolis, SC, Brazil
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Vildes Maria Scussel
  • Vildes Maria Scussel
  • Laboratory of Mycotoxicology and Food Contaminants - Labmico, Food Science and Technology Department, Center of Agricultural Sciences, Federal University of Santa Catarina, Florianopolis, SC, Brazil
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  •  Received: 04 November 2013
  •  Accepted: 11 December 2013
  •  Published: 01 January 2014

Abstract

In the present study, fruits extracts (Paullinia cupana K. & Libidibia ferrea M. - guaraná & jucá, respectively) of the Amazon Region were tested for antifungal and antimycotoxigenic activities against Aspergillus parasiticus using the agar dilution method. The treatments utilized were at three different concentrations (1.08, 1.62 and 3.24%). The effect on both extracts on growth diameter of fungal colony was time and concentration dependent. No treatment completely inhibited fungi growth, however A. parasiticus was significantly reduced by the treatments when compared to the control group. The production of AFB1, AFB2, AFG1 and AFG2 by A. parasiticus grown on guaraná and jucá extracts treatment was significantly smaller when compared to controls. A. parasiticus strain produced aflatoxins in all concentrations when grown on guaraná extracts medium treated and different of that observed when on jucá’s treated extracts.

 

Key words: Aspergillus parasiticus, Paullinia cupana, Libidibia ferrea, aflatoxin.