Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1072949
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Campo DCValorIdioma
dc.contributor.authorPORTO, R. S.
dc.contributor.authorRATH, S.
dc.contributor.authorQUEIROZ, S. C. do N. de
dc.date.accessioned2017-10-24T09:25:23Z-
dc.date.available2017-10-24T09:25:23Z-
dc.date.created2017-07-20
dc.date.issued2017
dc.identifier.citationJournal Of the Brazilian Chemical Society, v. 28, n. 5, p. 913-919, 2017.
dc.identifier.issn1678-4790
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1072949-
dc.descriptionAbastrac: Synthetic fungicides are a common treatment for post-harvest diseases in fruits, although demand is increasing for alternatives such as biopesticides. The aim of this work was to investigate the presence of naturally occurring antifungal compounds in Brazilian specimens of the weed Conyza canadensis. Two compounds [(4Z)-lachnophyllum lactone and (4Z,8Z)-matricaria lactone] were isolated and their antifungal activities were evaluated against eight postharvest disease fungi. Aspergillus niger, Cladosporium sp., and Penicillium digitatum proved susceptible to the treatment (minimum inhibitory concentrations varying from 32 to 64 µg mL-1). These fungi are common postharvest pathogens of fruits and vegetables, causing rots and secreting mycotoxins. A green and sustainable extraction method employing pressurized hot water was developed and optimized (100 °C, 4 × 1 min cycles). Yields of 1.46 and 0.24 mg g-1 were obtained for (4Z)-lachnophyllum lactone and (4Z,8Z)-matricaria lactone, respectively. The extract could be applied directly to fruits and vegetables in postharvest treatments.
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectAtividade antifúngica
dc.subjectBiopesticida
dc.titleConyza canadensis: green extraction method of bioactive compounds and evaluation of their antifungal activity.
dc.typeArtigo de periódico
dc.date.updated2018-01-19T11:11:11Zpt_BR
dc.subject.thesagroExtrato vegetal
dc.subject.thesagroPlanta produtora de pesticida
dc.subject.thesagroDoença de planta
dc.subject.thesagroPós-colheita
dc.subject.nalthesaurusConyza canadensis
dc.subject.nalthesaurusAntifungal properties
dc.subject.nalthesaurusPlant extracts
dc.subject.nalthesaurusBiopesticides
riaa.ainfo.id1072949
riaa.ainfo.lastupdate2018-01-19 -02:00:00
dc.identifier.doihttp://dx.doi.org/10.21577/0103-5053.20160228
dc.contributor.institutionRAFAEL SILVEIRA PORTO, IQ-UNICAMP; SUSANNE RATH, IQ-UNICAMP; SONIA CLAUDIA DO N DE QUEIROZ, CNPMA.
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