Mostrar el registro sencillo del ítem

dc.contributor.author
Córsico, Francisco Armando  
dc.contributor.author
Larrosa, Virginia Judit  
dc.contributor.author
López Noviello, Luciano Hernán  
dc.contributor.author
Altamirano, Alfonsina  
dc.contributor.author
Naef, Antonella  
dc.contributor.author
Alfaro, Cristina  
dc.contributor.author
Garzón, Claudia Guadalupe  
dc.contributor.author
Lound, Liliana Haydee  
dc.date.available
2018-03-01T20:10:16Z  
dc.date.issued
2014-12  
dc.identifier.citation
Córsico, Francisco Armando; Larrosa, Virginia Judit; López Noviello, Luciano Hernán; Altamirano, Alfonsina; Naef, Antonella; et al.; Oregano essential oils: Antimicrobial activity and its application to films based on cornstarch and glycerol; Academia Publishing; Academia Journal of Microbiology Research; 2; 2; 12-2014; 43-53  
dc.identifier.issn
2315-7771  
dc.identifier.uri
http://hdl.handle.net/11336/37618  
dc.description.abstract
This trend has led to research on the development of new biodegradable packaging materials from natural polymers also suggests that several materials may be incorporated into edible films and have influence on the mechanical, protective and sensory properties. The objective of this work was to characterize oregano essential oils and incorporated edible films made with cornstarch and glycerol. The oregano essential oil obtain the raw material used was the variety Italian Oregano or Origanum majorana using a Clevenger-type apparatus. The study included the refractive index, chemical composition, color at day 0 and day 10 and antimicrobial activity of Salmonella Enteritidis and Escherichia Coli O157:H7. The films were prepared according to the method of casting, cornstarch, glycerol (plasticizer) and water. To assess the effect of the composition on the physical properties of films, the experiment was arranged in a 22 factorial design, with one central point. It analyzed the transfer of water vapor (Method ASTM E96-92) and color. The film which showed the best characteristics was selected; subsequently oregano essential oil was added. The refractive index of the oregano essential oils obtained from the various extractions varied between 1.4875 and 1.4981. There was a significant difference (P<0.05) between the parameters a* and b* between day 0 and day 10. According to gas chromatography analysis, 52 compounds were identified in oregano essential oil, thymol (31.96%) and carvacrol (0.66%) phenols. The test antimicrobial activity, showed that Salmonella Enteritidis and Escherichia Coli O157:H7 were extremely sensitive to pure essential oil. The films obtained were transparent, presented homogeneous and compact surfaces. The values of permeability to water vapor were between 1.93 x 10-12 and 9.85 x 10-12 (g/m.s.Pa). The Analysis of Variance (ANOVA) indicated a significant differences between the different formulation (P<0.05). The incorporation of oregano essential oil at the formulations influenced the permeability presenting more or less resistant to the passage of water vapor. About the color, incorporating essential oil did not affect the appearance and did not show strong antibacterial activity at the concentration at which it was decided to work.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Academia Publishing  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/  
dc.subject
Oregano Essential Oils  
dc.subject
Edible Film  
dc.subject
Cornstarch  
dc.subject
Permeabilit  
dc.subject.classification
Recubrimientos y Películas  
dc.subject.classification
Ingeniería de los Materiales  
dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS  
dc.title
Oregano essential oils: Antimicrobial activity and its application to films based on cornstarch and glycerol  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2018-02-09T19:52:59Z  
dc.journal.volume
2  
dc.journal.number
2  
dc.journal.pagination
43-53  
dc.journal.pais
Estados Unidos  
dc.journal.ciudad
Nueva York  
dc.description.fil
Fil: Córsico, Francisco Armando. Universidad Nacional de Entre Ríos. Facultad de Bromatología; Argentina  
dc.description.fil
Fil: Larrosa, Virginia Judit. Universidad Nacional de Entre Ríos. Facultad de Bromatología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina  
dc.description.fil
Fil: López Noviello, Luciano Hernán. Universidad Nacional de Entre Ríos. Facultad de Bromatología; Argentina  
dc.description.fil
Fil: Altamirano, Alfonsina. Universidad Nacional de Entre Ríos. Facultad de Bromatología; Argentina  
dc.description.fil
Fil: Naef, Antonella. Universidad Nacional de Entre Ríos. Facultad de Bromatología; Argentina  
dc.description.fil
Fil: Alfaro, Cristina. Universidad Nacional de Entre Ríos. Facultad de Bromatología; Argentina  
dc.description.fil
Fil: Garzón, Claudia Guadalupe. Universidad Nacional de Entre Ríos. Facultad de Bromatología; Argentina  
dc.description.fil
Fil: Lound, Liliana Haydee. Universidad Nacional de Entre Ríos. Facultad de Bromatología; Argentina  
dc.journal.title
Academia Journal of Microbiology Research  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.15413/ajmr.2014.0115  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.academiapublishing.org/journals/ajmr/abstract/2014/Dec/Armando%20et%20al.htm