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dc.contributor.author
Bertuzzi, Maria Alejandra
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dc.contributor.author
Slavutsky, Anibal Marcelo
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dc.date.available
2019-09-23T17:30:43Z
dc.date.issued
2013-05
dc.identifier.citation
Bertuzzi, Maria Alejandra; Slavutsky, Anibal Marcelo; Formulation and Characterization of Film Based on Gum Exudates from Brea Tree (Cercidium praecox); David Publishing Company; Journal of Food Science and Engineering; 3; 5-2013; 113-122
dc.identifier.issn
2159-5828
dc.identifier.uri
http://hdl.handle.net/11336/84137
dc.description.abstract
In the present study, films and coatings for food applications based on a gum exudate from Brea tree (Cercidium praecox) were formulated and the influence of plasticizer content on their functional properties was evaluated. Brea gum is a renewable resource available in semi-desert areas, extracted by native people. Films were produced by casting method and characterized through water vapour permeability, mechanical (tensile strength and elongation at break), morphological and optical properties. Glycerol was used as plasticizer. Brea gum films presented good visual aspect, transparency and amber colour. Microscopic observation showed a dense and homogeneous structure. Film wettability increased with glycerol content due to hydrophilic nature of the plasticizer. Solubility of films in water increased with temperature. Water sorption isotherms of films at 25 °C showed that at high aw (above 0.50), the film matrix swells altering its structure and properties. Water vapour permeability remained practically constant up to 20% of glycerol content and then increases linearly with the plasticizer. The addition of glycerol decreased the opacity and tensile strength. The best film properties were obtained at 20% of glycerol concentration.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
David Publishing Company
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc/2.5/ar/
dc.subject
Films
dc.subject
Brea Gum
dc.subject
Mechanical Properties
dc.subject
Barrier Properties
dc.subject
Plasticzer Effects
dc.subject.classification
Otras Ingeniería Química
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dc.subject.classification
Ingeniería Química
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dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
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dc.title
Formulation and Characterization of Film Based on Gum Exudates from Brea Tree (Cercidium praecox)
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-06-10T20:34:47Z
dc.identifier.eissn
2164-5795
dc.journal.number
3
dc.journal.pagination
113-122
dc.journal.pais
Estados Unidos
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dc.journal.ciudad
California
dc.description.fil
Fil: Bertuzzi, Maria Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Investigaciones para la Industria Química. Universidad Nacional de Salta. Facultad de Ingeniería. Instituto de Investigaciones para la Industria Química; Argentina
dc.description.fil
Fil: Slavutsky, Anibal Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Investigaciones para la Industria Química. Universidad Nacional de Salta. Facultad de Ingeniería. Instituto de Investigaciones para la Industria Química; Argentina
dc.journal.title
Journal of Food Science and Engineering
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.davidpublisher.org/index.php/Home/Article/index?id=23386.html
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.17265/2159-5828/2013.03.001
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