Anatolian Journal of Botany, cilt.7, sa.2, ss.135-139, 2023 (Hakemli Dergi)
Aspergillus species are pollutants found in both food and air. The increase in the metabolic activity of Aspergillus
leads to spoilage of foodstuffs and large economic losses. In addition, some Aspergillus species have the ability to produce
aflatoxins and ochratoxins, secondary metabolites called, namely, mycotoxins. Especially mycotoxins are very important in
terms of food safety and human health. Since the protection of human and animal health and the prevention of economic losses
is a very important issue, our study aimed to determine the antifungal activity of Eugenia caryophyllata Thunb., Cinnamomum
sp., Mentha piperita L. and Thymus vulgaris L. essential oils (EO) against Aspergillus niger Tiegh. NRRL 321 strain. In the
second step, MIC and MFC values of EOs were determined. It was determined that the MIC value of Cinnamomum sp, M.
piperita and T. vulgaris EOs was 0.01 µL/mL, and E. caryophyllata EO was 0.5 µL/mL. It was determined that E. caryophyllata,
M. piperita and T. vulgaris EOs completely inhibited radial colony growth at MIC, 2xMIC and 4xMIC values. It was
determined that the inhibition of radial growth of Cinnamomum sp. EO varies depending on the concentration, and the inhibition
rate increases as the concentration increases. As a result, evaluations should be made considering the in vivo conditions that the
tested EOs showed strong antifungal activity against the A. niger strain