Antimicrobial activity of Piper arboreum and Piper tuberculatum (Piperaceae) against opportunistic yeasts

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.creatorRegasini, Luis Octávio-
Autor(es): dc.creatorCotinguiba, Fernando-
Autor(es): dc.creatorMorandim, Andreia De Araújo-
Autor(es): dc.creatorKato, Massuo Jorge-
Autor(es): dc.creatorScorzoni, Liliana-
Autor(es): dc.creatorMendes-Giannini, Maria José-
Autor(es): dc.creatorBolzani, Vanderlan Da Silva-
Autor(es): dc.creatorFurlan, Maysa-
Data de aceite: dc.date.accessioned2025-08-21T15:13:19Z-
Data de disponibilização: dc.date.available2025-08-21T15:13:19Z-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2009-06-17-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/225537-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/225537-
Descrição: dc.descriptionIn the scope of our ongoing research on bioactive agents from natural sources, 24 extracts and fractions obtained from Piper arboreum Aub. and Piper tuberculatum Jacq. (Piperaceae) were screened for antifungal activity by using broth microdilution method. The current investigation reveals that P. arboreum extracts and fractions were more effective against Candida krusei and Candida parapsilosis than Cryptococcus neoformans. The growth of Candida albicans was weakly affected by all the tested extracts and fractions. The strongest effects were observed for hexane and ethyl acetate fractions from leaves of P. arboreum, with MIC values (in μ g/ml) of 15.6 and 31.2 μ g/ml against C. krusei, respectively. Additionally, phytochemical investigation of the hexane fraction of P. arboreum leaves furnished 3 pyrrolidine amides; piperyline, 4,5-dihydropiperyline and tetrahydropiperyline, which could be responsible, at least in part for the observed antifungal activity. The most active compound, tetrahydropiperyline, displayed MIC values of 15.6 μ g/ml against C. krusei, C. parapsilosis and C. neoformans. © 2009 Academic Journals.-
Descrição: dc.descriptionDepartment of Organic Chemistry Institute of Chemistry São Paulo State University (UNESP), Araraquara-
Descrição: dc.descriptionDepartment of Fundamental Chemistry Institute of Chemistry São Paulo University (USP), São Paulo-
Descrição: dc.descriptionDepartment of Clinical and Toxicological Analysis School of Pharmaceutical Sciences São Paulo State University (UNESP), Araraquara-
Descrição: dc.descriptionDepartment of Organic Chemistry Institute of Chemistry São Paulo State University (UNESP), Araraquara-
Descrição: dc.descriptionDepartment of Clinical and Toxicological Analysis School of Pharmaceutical Sciences São Paulo State University (UNESP), Araraquara-
Formato: dc.format2866-2870-
Idioma: dc.languageen-
Relação: dc.relationAfrican Journal of Biotechnology-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAntifungal-
Palavras-chave: dc.subjectAntimicrobial-
Palavras-chave: dc.subjectCandida-
Palavras-chave: dc.subjectCryptococcus neoformans-
Palavras-chave: dc.subjectPiper arboreum-
Palavras-chave: dc.subjectPiper tuberculatum-
Palavras-chave: dc.subjectPiperaceae-
Título: dc.titleAntimicrobial activity of Piper arboreum and Piper tuberculatum (Piperaceae) against opportunistic yeasts-
Tipo de arquivo: dc.typelivro digital-
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