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dc.contributor.author
Baumler, Erica Raquel
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dc.contributor.author
Carelli Albarracin, Amalia Antonia
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dc.contributor.author
Martini, Silvana
dc.date.available
2016-12-22T22:39:19Z
dc.date.issued
2013-06
dc.identifier.citation
Baumler, Erica Raquel; Carelli Albarracin, Amalia Antonia; Martini, Silvana; Physical Properties of Aqueous Solutions of Pectin Containing Sunflower Wax; Springer; Journal of The American Oil Chemists Society; 90; 6; 6-2013; 791-802
dc.identifier.issn
0003-021X
dc.identifier.uri
http://hdl.handle.net/11336/10031
dc.description.abstract
The aim of this study is to investigate the physical properties of aqueous solutions of pectin (PA) containing sunflower wax (SFW), which are used as a basis for producing edible films. The stability and the rheological and microstructural characteristics of SFW/PA mixtures were evaluated. SFW/PA mixtures formed oil-in-water emulsions that were milky and opaque in appearance and were stable towards phase separation. Polarized micrographs revealed the presence of wax crystals, whose size decreased as pectin concentration increased. The rheological behavior of the aqueous solutions of pectin containing different amounts of SFW were best described by the generalized power law model of Herschel-Bulkley (H-B), which gave the best fit in all the range of shear rate values. Apparent viscosities and yield stress were determined using this model, and both properties increased with increasing pectin content. The apparent viscosity values were between 0.0095 and 0.1031 Pa s. SFW addition resulted in a small decrease in viscosity for emulsions formulated with 1 and 2 % PA, but the opposite effect was observed for emulsions formulated with 3 % PA. In addition, shear stress values were higher for emulsions with higher PA content, but were not affected by SFW addition.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Sunflower Waxes
dc.subject
Pectin
dc.subject
Edible Film
dc.subject
Emulsion
dc.subject.classification
Alimentos y Bebidas
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dc.subject.classification
Otras Ingenierías y Tecnologías
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dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
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dc.title
Physical Properties of Aqueous Solutions of Pectin Containing Sunflower Wax
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-12-21T13:45:18Z
dc.journal.volume
90
dc.journal.number
6
dc.journal.pagination
791-802
dc.journal.pais
Alemania
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dc.description.fil
Fil: Baumler, Erica Raquel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Planta Piloto de Ingeniería Química (i); Argentina
dc.description.fil
Fil: Carelli Albarracin, Amalia Antonia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Planta Piloto de Ingeniería Química (i); Argentina
dc.description.fil
Fil: Martini, Silvana. State University Of Utah; Estados Unidos
dc.journal.title
Journal of The American Oil Chemists Society
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://link.springer.com/article/10.1007%2Fs11746-013-2235-y
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s11746-013-2235-y
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