Effect of Gliding Arc Plasma Jet on the Mycobiota and Deoxynivalenol Levels in Naturally Contaminated Barley Grains

William Chiappim (), Vanessa de Paula Bernardes, Naara Aparecida Almeida, Viviane Lopes Pereira, Adriana Pavesi Arisseto Bragotto, Maristela Barnes Rodrigues Cerqueira, Eliana Badiale Furlong, Rodrigo Pessoa and Liliana Oliveira Rocha ()
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William Chiappim: Laboratory of Plasmas and Applications, Department of Physics, Faculty of Engineering and Sciences, São Paulo State University (UNESP), Guaratinguetá 12516-410, Brazil
Vanessa de Paula Bernardes: Laboratório de Microbiologia de Alimentos I, Departmento de Alimentos e Nutrição, Faculdade de Engenharia de Alimentos, Universidade Estadual de Campinas-UNICAMP, Campinas 13083-862, Brazil
Naara Aparecida Almeida: Laboratório de Microbiologia de Alimentos I, Departmento de Alimentos e Nutrição, Faculdade de Engenharia de Alimentos, Universidade Estadual de Campinas-UNICAMP, Campinas 13083-862, Brazil
Viviane Lopes Pereira: Laboratório de Microbiologia de Alimentos I, Departmento de Alimentos e Nutrição, Faculdade de Engenharia de Alimentos, Universidade Estadual de Campinas-UNICAMP, Campinas 13083-862, Brazil
Adriana Pavesi Arisseto Bragotto: Laboratório de Microbiologia de Alimentos I, Departmento de Alimentos e Nutrição, Faculdade de Engenharia de Alimentos, Universidade Estadual de Campinas-UNICAMP, Campinas 13083-862, Brazil
Maristela Barnes Rodrigues Cerqueira: Escola de Química e Alimentos, Universidade Federal do Rio Grande, Rio Grande 96203-900, Brazil
Eliana Badiale Furlong: Escola de Química e Alimentos, Universidade Federal do Rio Grande, Rio Grande 96203-900, Brazil
Rodrigo Pessoa: Laboratório de Plasmas e Processos, Departamento de Física, Instituto Tecnológico de Aeronáutica, São José dos Campos 12228-900, Brazil
Liliana Oliveira Rocha: Laboratório de Microbiologia de Alimentos I, Departmento de Alimentos e Nutrição, Faculdade de Engenharia de Alimentos, Universidade Estadual de Campinas-UNICAMP, Campinas 13083-862, Brazil

IJERPH, 2023, vol. 20, issue 6, 1-16

Abstract: Fusarium graminearum and Fusarium meridionale are primary contaminants of barley, capable of producing several mycotoxins, mainly type B trichothecenes and zearalenone. Cold plasma decontamination has been gaining prominence, seeking to control the fungal and mycotoxin contamination of food and feed and to improve product quality. To reach this objective, the present study was divided into two parts. In the first part, F. meridionale and F. graminearum strains were exposed to gliding arc plasma jet (GAPJ). Cell viability tests showed the inactivation of F. meridionale after 15-min treatment, whereas F. graminearum showed to be resistant. In the second part, barley grains were treated by GAPJ for 10, 20, and 30 min, demonstrating a reduction of about 2 log CFU/g of the barley’s mycobiota, composed of yeasts, strains belonging to the F. graminearum species complex, Alternaria , and Aspergillus . A decrease in DON levels (up to 89%) was observed after exposure for 20 min. However, an increase in the toxin Deoxynivalenol-3-glucoside (D3G) was observed in barley grains, indicating a conversion of DON to D3G.

Keywords: cold plasma; decontamination; mycotoxins; Fusarium graminearum; Fusarium meridionale; QuEChERS; masked mycotoxins (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2023
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