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 originale | English |
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pagine (da-a) | 93-100 |
Numero di pagine | 8 |
Rivista | International Journal of Food Microbiology |
Volume | 2012/159 |
DOI | |
Stato di pubblicazione | Pubblicato - 2012 |
Keywords
- ecology
- hidden fumonisins
- incubation time
- mycotoxins
- pH
- water activity