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Transgenic versus conventional corn: fate of fumonisins during industrial dry milling

  • Jaqueline Gozzi Bordini
  • Mario Augusto Ono
  • Glauco Tironi Garcia
  • Édio Vizoni
  • Ismael Rodrigues Amador
  • Melissa Tiemi Hirozawa
  • Elisabete Yurie Sataque OnoEmail author
Original Article
  • 6 Downloads

Abstract

The aim of this study was to compare the fate of fumonisins in transgenic and non-transgenic corn during industrial dry milling. For this purpose, whole corn samples and their fractions (germ, pericarp, endosperm, corn meal, and grits) were collected from one of the major Brazilian milling plants, totaling 480 samples. There was no significant difference (p > 0.05) between mean fumonisin (FB1 + FB2) levels in transgenic (1130 μg/kg) and non-transgenic (920 μg/kg) whole corn. However, in non-transgenic germ, endosperm and corn meal fraction fumonisin levels were higher (2940 μg/kg, 250 μg/kg and 190 μg/kg, respectively) than in transgenic fractions (2180 μg/kg, 130 μg/kg and 85.0 μg/kg, respectively). Furthermore, the highest percentages of fumonisins were distributed in the germ, corresponding to about 87 and 76% of the total fumonisins present in the whole corn from non-transgenic and transgenic hybrids, respectively. Concerning the endosperm from non-transgenic and transgenic corn, approximately, 23% and 13% of the total fumonisins were retained after the dry milling. Further processing in corn meal (300 to 420 μm particle size) and grits (590 to 1190 μm) decreased the percentages of remaining fumonisins to 4% and 2% (transgenic) and 10% and 3% (non-transgenic corn), respectively. These results suggested that fumonisin concentration was higher in outer and inner non-transgenic fractions when compared to transgenic ones and that the fate of fumonisins during the industrial dry milling could be affected by the transgenic status. However, it was not possible to conclude that the difference was exclusively due to this variable.

Keywords

Grits Corn meal Germ Pericarp Mycotoxins Food safety 

Notes

Funding information

This work was financially supported by the CAPES (Co-ordination for Formation of High Level Professionals)—Nanobiotechnology Network Program (04/CII-2008), CNPq (The Brazilian Government Organization for Grant Aid and Fellowship to Brazilian Researchers)—grant no. 405452/2016-0, FINEP, the Araucária Foundation (Project announcement 09/2016, Research project agreement 001/2017—grant no. 47396), and Paraná Fund/SETI. The CNPq research productivity fellowship supported E.Y.S. Ono (grant no. 307710/2014-9) and M.A. Ono (grant no. 310852/2014-5); the CAPES/National Post-doctoral Program (CAPES/PNPD) scholarship supported I.R. Amador, and CAPES/Doctoral scholarship supported J. G. Bordini and M.T. Hirozawa.

Compliance with ethical standards

Conflicts of interest

None.

Supplementary material

12550_2019_343_MOESM1_ESM.doc (32 kb)
Table S1 (DOC 31 kb)

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Copyright information

© Society for Mycotoxin (Research Gesellschaft für Mykotoxinforschung e.V.) and Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Jaqueline Gozzi Bordini
    • 1
  • Mario Augusto Ono
    • 2
  • Glauco Tironi Garcia
    • 3
  • Édio Vizoni
    • 4
  • Ismael Rodrigues Amador
    • 1
  • Melissa Tiemi Hirozawa
    • 1
  • Elisabete Yurie Sataque Ono
    • 1
    Email author
  1. 1.Department of Biochemistry and BiotechnologyState University of LondrinaLondrinaBrazil
  2. 2.Department of Pathological SciencesState University of LondrinaLondrinaBrazil
  3. 3.G Tironi Garcia Consultoria Técnica – MEAndiraBrazil
  4. 4.Department of StatisticsState University of LondrinaLondrinaBrazil

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