Potential use of antioxidants for control of growth and fumonisin production by Fusarium verticillioides and Fusarium proliferatum on whole maize grain.
The effect of interactions between two food grade antioxidants butylated hydroxyanisole (BHA) and propyl paraben (PP, 100, 200, 500 microg g(-1)) and water activity (a(w), 0.995, 0.98, 0.95) of irradiated maize on lag phase prior to growth, growth rate and fumonisin production by Fusarium verticillioides and Fusarium proliferatum was evaluated at 25 degrees C. Both antioxidants had an effect on growth characteristics, and fumonisin production. However, this was dependent on the dose used and the a(w) treatment. At 500 microg g(-1) BHA and PP increased the lag phase prior to growth, and reduced the growth rate of both Fusarium species significantly, especially at 0.95 a(w). Both antioxidants significantly reduced the production of fumonisin by both Fusarium species, especially at 0.98 and 0.95 a(w). These results suggest that these antioxidants have potential for treatment of maize grain for controlling growth of these mycotoxigenic species and prevent fumonisin accumulation.
Torres
A M
AM
Departamento de Microbiologia e Inmunologia, Facultad de Ciencias Exactas Fisico-Químicas y Naturales, Universidad Nacional de Rio Cuarto, Rio Cuarto, Cordoba, Argentina.
Ramirez
M L
ML
Arroyo
M
M
Chulze
S N
SN
Magan
N
N
D000975:Antioxidants / Q000494:pharmacology*; D002083:Butylated Hydroxyanisole / Q000494:pharmacology; D004305:Dose-Response Relationship, Drug; D005519:Food Preservation / Q000379:methods*; D005520:Food Preservatives / Q000494:pharmacology*; D037341:Fumonisins / Q000378:metabolism*; D005670:Fusarium / Q000187:drug effects* / Q000254:growth & development / Q000378:metabolism; D007700:Kinetics; D010226:Parabens / Q000494:pharmacology; D003313:Zea mays / Q000382:microbiology*
D000975:Antioxidants; D005520:Food Preservatives; D037341:Fumonisins; D010226:Parabens; D002083:Butylated Hydroxyanisole; C006068:propylparaben