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Abstract
The antifungal activities of 65 extracts were evaluated through the agar well diffusion method in 22 plant samples from the Ucumari Natural Regional Park (UNRP). These samples belong to 20 plant species related to the following botanic families: Asteraceae, Euphorbiaceae, Melastomataceae, Podocarpaceae, Rubiaceae and Solanaceae. The plant extracts were obtained in hexanes, dichloromethane and methanol. The 65 extract samples were tested against pathogenic fungi Aspergillus fumigatus (ATCC 1022), Candida albicans (ATCC 18804) and Fusarium solani (ATCC 11712). Ketoconazole was used as positive control. The methanol extracts from Solanum spp. (FJR 3155) and Tibouchina grossa exhibited the greatest inhibitory activity against the three fungi tested, while the methanol extracts from Hyeronima macrocarpa, Miconia lehmannii, and Sapium stylare inhibited two of the fungi assayed. The dichloromethane extracts from Miconia lehmannii Cong, Lycinathes acutifolia and Solanum spp. (FJR 3155) inhibited two of the three fungi tested, while the dichloromethane extracts from Cinchona pubescens Vahl and Palicourea spp. (FJR 3182) inhibited one of the three microorganism tested. Only one of the hexane extracts produced activity against the three fungi tested.