Optical and Structural Properties of Zein-Xanthan Gum Biofilms

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorde Almeida, Crislene Barbosa
dc.creatorLopes Filho, Jose Francisco
dc.date2014-05-20T14:02:02Z
dc.date2014-05-20T14:02:02Z
dc.date2011-01-01
dc.date.accessioned2017-04-05T21:26:32Z
dc.date.available2017-04-05T21:26:32Z
dc.identifierBrazilian Polymer Congress. Weinheim: Wiley-v C H Verlag Gmbh, v. 299-300, p. 20-25, 2011.
dc.identifier1022-1360
dc.identifierhttp://hdl.handle.net/11449/21874
dc.identifier10.1002/masy.200900082
dc.identifierWOS:000298852100003
dc.identifierhttp://dx.doi.org/10.1002/masy.200900082
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/867367
dc.descriptionStructural and optical characteristics of zein-based films produced with different xanthan gum concentrations have been studied in this work. Scanning electronic microscopy (SEM) and optical microscopy (OM) were performed to identify if the incorporation of the material into the matrix film, formed a homogeneous structure, as well as to characterize its constituents as the colour and shape. SEM showed a homogeneous matrix for the control (0% xanthan) with good lipid distribution. However, when the samples were investigated by OM, lipids globules in the control biofilm appeared larger and more dispersed in the matrix than the others samples. Transparency/opacity test measurements by UV-VIS analysis indicated that the addition of xanthan to the film matrix lowered significantly its transparency properties Overall, the addition of xanthan gum favoured lipid dispersion in the matrix, making biomaterials more homogeneous, although with less transparency.
dc.languageeng
dc.publisherWiley-v C H Verlag Gmbh
dc.relationBrazilian Polymer Congress
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectBiopolymer
dc.subjectcomposites
dc.subjectXanthan gum
dc.subjectZein
dc.titleOptical and Structural Properties of Zein-Xanthan Gum Biofilms
dc.typeOtro


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