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Open AccessArticle

Effect of Atmospheric Cold Plasma Treatments on Reduction of Alternaria Toxins Content in Wheat Flour

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Research Center for Technology of Plant Based Food Products, Institute of Food Technology, University of Novi Sad, 21000 Novi Sad, Serbia
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Department of Carbohydrate Food Engineering, Faculty of Technology Novi Sad, University of Novi Sad, 21000 Novi Sad, Serbia
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Department of Food Technology, Faculty of Technology Zvornik, University of East Sarajevo, 75400 Zvornik, Bosnia and Herzegovina
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Institute of General and Physical Chemistry, University of Belgrade, 11000 Belgrade, Serbia
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Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, University of Novi Sad, 21000 Novi Sad, Serbia
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Laboratory for Gaseous Electronics, Institute of Physics, University of Belgrade, 11080 Belgrade, Serbia
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Chair of general physiology and biophysics, Faculty of Biology, University of Belgrade, 11000 Belgrade, Serbia
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Author to whom correspondence should be addressed.
Toxins 2019, 11(12), 704; https://doi.org/10.3390/toxins11120704
Received: 26 October 2019 / Revised: 17 November 2019 / Accepted: 25 November 2019 / Published: 3 December 2019
(This article belongs to the Section Mycotoxins)
Beside Fusarium toxins, Alternaria toxins are among the most commonly found mycotoxins in wheat and wheat products. Currently, investigations of possibilities of reduction of Alternaria toxins in the wheat-processing chain are limited. Therefore, the aim of this study was to explore the potency of cold atmospheric plasma treatments, as a new non-thermal approach, for reduction of alternariol (AOH), alternariol monomethyl ether (AME) and tentoxin (TEN) content in spiked white wheat flour samples. Samples were treated with plasma generated in the air during 30 s to 180 s, with an increment step of 30 s, and at four varying distances from the cold plasma source (6 mm, 21 mm, 36 mm and 51 mm). The reduction of the Alternaria toxins content in samples after treatment was monitored by high performance liquid chromatography coupled to tandem mass spectrometry (LC-MS/MS). The maximum reduction of the examined Alternaria toxins was obtained by treatment performed at 6 mm distance from the plasma source, lasting 180 s, resulting in reductions of 60.6%, 73.8% and 54.5% for AOH, AME and TEN, respectively. According to the obtained experimental results, five empirical models in the form of the second-order polynomials were developed for the prediction of AOH, AME and TEN reduction, as well as the temperature and the moisture content of the wheat flour, that gave a good fit to experimental data and were able to predict the response variables successfully. The developed second-order polynomial models showed high coefficients of determination for prediction of experimental results (between 0.918 and 0.961). View Full-Text
Keywords: wheat flour; atmospheric cold plasma; alternariol; alternariol monomethyl ether; tentoxin; LC-MS/MS; mathematical modelling wheat flour; atmospheric cold plasma; alternariol; alternariol monomethyl ether; tentoxin; LC-MS/MS; mathematical modelling
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Janić Hajnal, E.; Vukić, M.; Pezo, L.; Orčić, D.; Puač, N.; Škoro, N.; Milidrag, A.; Šoronja Simović, D. Effect of Atmospheric Cold Plasma Treatments on Reduction of Alternaria Toxins Content in Wheat Flour. Toxins 2019, 11, 704.

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