Akademik Veri Yönetim Sistemi
MANTAR DERGİSİ, cilt.17, sa.1, ss.43-52, 2026 (TRDizin)
Plant extracts, fixed oils (FO), and essential oils (EO) are continually investigated for their biological activities. However, the antifungal activity of plant extracts and oils is less frequently studied. Therefore, in this study, the antifungal activities of commercially available 11 FOs, 24 EOs, 11 PEs, and one tar were primarily investigated against eight microfungi (Aspergillus flavus, Aspergillus fumigatus, Aspergillus niger, Penicillium chrysogenum, Penicillium oxalicum, Penicillium purpurogenum, Trichoderma sp.-1, and Trichoderma sp.-2) species using the agar disc diffusion method. Cuminum cyminum seed FO, Mentha piperita EO, Thymus spp. EO, Zingiber officinale EO, and Juniperus oxycedrus tar exhibited inhibition zones ranging from 8.00 to 90.00 mm. Other plant extracts, FOs, and EOs were found to have no antifungal activity. Then, the inhibition of M. piperita EO, Thymus spp. EO and J. oxycedrus tar on radial growth, which showed the highest inhibition zone, were also examined. It was determined that they inhibited radial growth between 52% and 100%. Moreover, the effect of two Zingiber officinale EOs, which were determined to have both antifungal activity and not antifungal activity because of agar disc diffusion analysis, on radial growth was also investigated. Zingiber officinale EO, which has antifungal activity, inhibited radial growth by 66-100%. On the other hand, the Z. officinale EO promoted the growth of Aspergillus fumigatus and inhibited the radial growth of the different microfungi tested by up to 42.98%. As a result, the antifungal activity depends on the oil's composition. Therefore, the beneficial effects may not be seen in all commercial products as stated in the literature. For this reason, it is necessary to conduct more detailed studies of commercially available products.