Can plant phenolic compounds reduce Fusarium growth and mycotoxin production in cereals?

To assess the in vitro activity of three phenolic acids (ferulic acid, p-hydroxybenzoic acid, vanillic acid) and two flavonols (quercetin, rutin) on mycelial growth and mycotoxin accumulation of Fusarium graminearum (FG), F. langsethiae (FL) and F. poae (FP), two different approaches were chosen. Fi...

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Published in:Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment Chemistry, analysis, control, exposure & risk assessment, 2018-12, Vol.35 (12), p.2455-2470
Main Authors: Schöneberg, Torsten, Kibler, Karin, Sulyok, Michael, Musa, Tomke, Bucheli, Thomas D., Mascher, Fabio, Bertossa, Mario, Voegele, Ralf T., Vogelgsang, Susanne
Format: Article
Language:English
Subjects:
Accumulation
Acids
Cereals
Edible Grain - microbiology
Ferulic acid
Flavonols
Fusarium
Fusarium - drug effects
Fusarium - growth & development
Fusarium - metabolism
Fusarium graminearum
Fusarium langsethiae
Fusarium poae
Hydroxybenzoates - pharmacology
Mycelia
mycelium growth
mycotoxin
Mycotoxins
Mycotoxins - biosynthesis
oats
p-Hydroxybenzoic acid
Phenolic acids
phenolic compounds
Phenols
Quercetin
Quercetin - pharmacology
Rutin
Rutin - pharmacology
Vanillic acid
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Summary:To assess the in vitro activity of three phenolic acids (ferulic acid, p-hydroxybenzoic acid, vanillic acid) and two flavonols (quercetin, rutin) on mycelial growth and mycotoxin accumulation of Fusarium graminearum (FG), F. langsethiae (FL) and F. poae (FP), two different approaches were chosen. First, grains from oat varieties were inoculated with a suspension of three FL isolates to determine the influence of phenolic compounds on the accumulation of mycotoxins. The oat variety Zorro showed a tendency for lower accumulation of T-2/HT-2, diacetoxyscirpenol and neosolaniol. Second, a mycelium growth assay was conducted to follow FG, FL and FP growth on cereal based media supplemented with phenolic compounds. Increasing concentrations of ferulic acid substantially inhibited growth of FG and FL, while FP growth was reduced to 57%. In contrast, p-hydroxybenzoic acid, vanillic acid, quercetin, and rutin slightly stimulated mycelium growth. Results about mycotoxin production in cereal based media were less conclusive.
ISSN:1944-0049
1944-0057
DOI:10.1080/19440049.2018.1538570