Effect of gallic acid on Aspergillus carbonarius growth and ochratoxin A production
2010
Romero, S. | Alberto, M. | Vaamonde, G.
The aim of the present study was to investigate the gallic acid influence on Aspergillus carbonarius growth and ochratoxin A (OTA) biosynthesis. A mixed inoculum was used in Czapek Yeast Extract Agar and growth and OTA production was observed at 100 to 500 mg/l of the phenolic compound. Slower colony growth rates and longer lag phases were observed with increasing concentration and 500 mg/l was totally inhibitory for A. carbonarius growth. OTA production decrease was observed even at the lower concentration assayed. Gallic acid could be used as a natural antimicrobial for the control of ochratoxigenic A. carbonarius.
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