Abstract
The antifungal activity of eugenol in a model system against aspergilli (Aspergillus niger, Aspergillus terreus, and Emericella nidulans), penicilli (Penicillium expansum, Penicillium glabrum, and Penicillium italicum), and fusaria (Fusarium oxysporum and Fusarium avenaceum) was investigated. Minimum detection time (time to attain a colony diameter of 1 cm) and the kinetic parameters were evaluated. The effectiveness of the active compound seemed to be strain or genus dependent; 100 mg/liter represented a critical value for P. expansum, P. glabrum, P. italicum, A. niger, and E. nidulans because a further increase of eugenol resulted in fungistatic activity. The radial growth of A. terreus and F. avenaceum was inhibited at 140 mg/liter, and growth of F. oxysporum was completely inhibited at 150 mg/liter.
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