Fumonisins B, A and C profile and masking in Fusarium verticillioides strains on fumonisin-inducing and maize-based media

Paola Battilani, Irene Lazzaro, Claudia Falavigna, Chiara Dall'Asta, Robert H. Proctor, Gianni Galaverna

Risultato della ricerca: Contributo in rivistaArticolo in rivistapeer review

13 Citazioni (Scopus)

Abstract

The production of fumonisin B, A and C and hidden and partially hydrolysed fumonisin occurrence was investigated in 3 strains of Fusarium verticillioides isolated from maize, cultured for 21–45 days on malt extract medium at 25 °C and 0.955–0.990 water activity (aw). Fumonisin A–B and C series were produced by all the strains in all conditions studied, with B-fumonisin≫C-fumonisin>A-fumonisin following a similar trend. The dynamic of fumonisin production was significantly influenced by factors considered and their interaction, with aw=0.990 as favourable condition in ITEM 10026 and ITEM 10027. All fumonisins were maximised at 30 days incubation in ITEM 10027 and ITEM 1744 and at 45 days incubation in ITEM 10026. Partially hydrolysed fumonisins were detected only for the B-group. Hidden fumonisins were never observed in Fusarium cultures grown on malt extract medium but were detected in the additional trial on maize-based medium, suggesting that the masking phenomenon can occur only in a complex matrix.
Lingua originaleEnglish
pagine (da-a)93-100
Numero di pagine8
RivistaInternational Journal of Food Microbiology
Volume2012/159
Stato di pubblicazionePubblicato - 2012

Keywords

  • ecology
  • hidden fumonisins
  • incubation time
  • mycotoxins
  • pH
  • water activity

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