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dc.contributor.author
Fernández, Jorge Gastón
dc.contributor.author
Fernández Baldo, Martín Alejandro
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Berni, Elias
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Camí, Gerardo Enrique
dc.contributor.author
Durán, Nelson
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Raba, Julio
dc.contributor.author
Sanz Ferramola, Maria Isabel
dc.date.available
2018-09-21T17:27:26Z
dc.date.issued
2016-09
dc.identifier.citation
Fernández, Jorge Gastón; Fernández Baldo, Martín Alejandro; Berni, Elias; Camí, Gerardo Enrique; Durán, Nelson; et al.; Production of silver nanoparticles using yeasts and evaluation of their antifungal activity against phytopathogenic fungi; Elsevier; Process Biochemistry; 51; 9; 9-2016; 1306-1313
dc.identifier.issn
1359-5113
dc.identifier.uri
http://hdl.handle.net/11336/60571
dc.description.abstract
The present study investigated the biological synthesis, characterization and antifungal activity of silver nanoparticles (Ag NPs). The production of Ag NPs was performed using the culture supernatants of two yeasts: Cryptococcus laurentii and Rhodotorula glutinis. These yeasts were chosen for their nitrate reductase activity. The role of nitrate reductase in the production of nanoparticles was assessed using inhibitors. The characterization of Ag NPs was made by UV-visible spectrophotometry, photon correlation spectroscopy, transmission electron microscopy and X-ray diffraction. Moreover, the FTIR spectrum identified the possible stabilizing agents present in supernatants. The Ag NPs obtained from both yeasts were disperse and stable and exhibited differences in sizes, zeta potential, concentration and stabilizing compounds. The antifungal activity of the Ag NPs was evaluated against the relevant phytopathogenic fungi, the common producers of postharvest diseases in pome fruits. Susceptibility tests on agar demonstrated that the antifungal activity of the nanoparticles from R. glutinis was higher than that from the ones from C. laurentii, and both were significantly more effective for inhibiting the fungi than the nanoparticles made from chemical synthesis. At 3 ppm, the nanoparticles from R. glutinis had similar efficacy to iprodione, a fungicide commonly utilized for combating postharvest diseases.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
Antifungal Activity
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Cryptococcus Laurentii
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Postharvest Phytopathogen Fungi
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Rhodotorula Glutinis
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Silver Nanoparticles
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Bioquímica y Biología Molecular
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Production of silver nanoparticles using yeasts and evaluation of their antifungal activity against phytopathogenic fungi
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-09-20T13:21:51Z
dc.journal.volume
51
dc.journal.number
9
dc.journal.pagination
1306-1313
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Fernández, Jorge Gastón. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Química de San Luis. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Química de San Luis; Argentina
dc.description.fil
Fil: Fernández Baldo, Martín Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Química de San Luis. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Química de San Luis; Argentina
dc.description.fil
Fil: Berni, Elias. Universidade Estadual de Campinas; Brasil
dc.description.fil
Fil: Camí, Gerardo Enrique. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia; Argentina
dc.description.fil
Fil: Durán, Nelson. Universidade Estadual de Campinas; Brasil. Universidade Federal do ABC; Brasil
dc.description.fil
Fil: Raba, Julio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Química de San Luis. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Química de San Luis; Argentina
dc.description.fil
Fil: Sanz Ferramola, Maria Isabel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Química de San Luis. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Química de San Luis; Argentina
dc.journal.title
Process Biochemistry
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1359511316301441
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.procbio.2016.05.021
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