Morphological and Structural Characteristics of Zein Biofilms with Added Xanthan Gum
Morphological and structural characteristics of zein-based biofilms have been studied in this work. The sorbitan component in the control formulation of the film was substituted with xanthan gum at concentrations between 0.01 and 0.04% to analyze its effect on lipid dispersion. Scanning electron mic...
| Autores: | ; ; ; |
|---|---|
| Tipo de documento: | Artículo |
| Estado: | Published version |
| Fecha de publicación: | 2010 |
| País: | Brasil |
| Institución: | UNESP |
| Repositorio: | Repositório Institucional da UNESP |
| Lenguaje: | Inglés |
| OAI Identifier: | oai:repositorio.unesp.br:11449/21882 |
| Acceso en línea: | http://www.ftb.com.hr/index.php/archives/62-volume-48-issue-no-1/168 http://hdl.handle.net/11449/21882 |
| Nivel de acceso: | Acceso abierto |
| Palabra clave: | zein biofilms Xanthan gum morphological properties structural properties |
| _version_ | 1878767879575306240 |
|---|---|
| author | de Almeida, Crislene Barbosa [UNESP] |
| author2 | Catelam, Kelly Tafari [UNESP] Cornelio, Marinonio Lopes [UNESP] Lopes Filho, Jose Francisco [UNESP] |
| author2_role | author author author |
| author_browse | Catelam, Kelly Tafari [UNESP] Cornelio, Marinonio Lopes [UNESP] Lopes Filho, Jose Francisco [UNESP] de Almeida, Crislene Barbosa [UNESP] |
| author_facet | de Almeida, Crislene Barbosa [UNESP] Catelam, Kelly Tafari [UNESP] Cornelio, Marinonio Lopes [UNESP] Lopes Filho, Jose Francisco [UNESP] |
| author_role | author |
| collection | Repositório Institucional da UNESP |
| description | Morphological and structural characteristics of zein-based biofilms have been studied in this work. The sorbitan component in the control formulation of the film was substituted with xanthan gum at concentrations between 0.01 and 0.04% to analyze its effect on lipid dispersion. Scanning electron microscopy (SEM) showed a surface for the control (0 % xanthan) with good lipid distribution. However, when the samples were investigated by optical microscopy (OM), lipid globules in the control biofilm appeared larger and more dispersed in the matrix than in the other samples. Fourier transform infrared (FTIR) spectroscopy indicated that xanthan concentrations deeply affected C=O linkages from amide I group, as well as the functional N-H group of amide H of the zein structure. Other weak interactions of amide I and 11 with carboxylic acids and aliphatic compounds were also observed. UV/VIS analysis as well as transparency measurements 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 biofilms more homogeneous, although less transparent. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | BR_f8a81b1bedb00a3d5fa30cc8b657eaa2 |
| institution | UNESP |
| instname_str | Universidade Estadual Paulista (UNESP) |
| language | eng |
| network_acronym_str | BR |
| network_name_str | Brasil |
| oai_identifier_str | oai:repositorio.unesp.br:11449/21882 |
| publishDate | 2010 |
| publishDateSort | 2010 |
| publisher | Faculty Food Technology Biotechnology |
| publisherStr | Faculty Food Technology Biotechnology |
| reponame_str | Repositório Institucional da UNESP |
| spelling | Morphological and Structural Characteristics of Zein Biofilms with Added Xanthan Gum de Almeida, Crislene Barbosa [UNESP] Catelam, Kelly Tafari [UNESP] Cornelio, Marinonio Lopes [UNESP] Lopes Filho, Jose Francisco [UNESP] zein biofilms Xanthan gum morphological properties structural properties Morphological and structural characteristics of zein-based biofilms have been studied in this work. The sorbitan component in the control formulation of the film was substituted with xanthan gum at concentrations between 0.01 and 0.04% to analyze its effect on lipid dispersion. Scanning electron microscopy (SEM) showed a surface for the control (0 % xanthan) with good lipid distribution. However, when the samples were investigated by optical microscopy (OM), lipid globules in the control biofilm appeared larger and more dispersed in the matrix than in the other samples. Fourier transform infrared (FTIR) spectroscopy indicated that xanthan concentrations deeply affected C=O linkages from amide I group, as well as the functional N-H group of amide H of the zein structure. Other weak interactions of amide I and 11 with carboxylic acids and aliphatic compounds were also observed. UV/VIS analysis as well as transparency measurements 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 biofilms more homogeneous, although less transparent. Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) São Paulo State Univ, Dept Food Engn & Technol, UNESP, BR-15054000 Sao Jose do Rio Preto, Brazil São Paulo State Univ, Dept Phys, UNESP, BR-15054000 Sao Jose do Rio Preto, Brazil FAPESP: 05/02407-4 FAPESP: 06/01775-2 Faculty Food Technology Biotechnology http://www.ftb.com.hr/index.php/archives/62-volume-48-issue-no-1/168 Food Technology and Biotechnology. Zagreb: Faculty Food Technology Biotechnology, v. 48, n. 1, p. 19-27, 2010. 1330-9862 http://hdl.handle.net/11449/21882 WOS:000275855700004 WOS000275855700004.pdf 3874425691257843 |
| spellingShingle | Morphological and Structural Characteristics of Zein Biofilms with Added Xanthan Gum de Almeida, Crislene Barbosa [UNESP] zein biofilms Xanthan gum morphological properties structural properties |
| status_str | publishedVersion |
| title | Morphological and Structural Characteristics of Zein Biofilms with Added Xanthan Gum |
| title_full | Morphological and Structural Characteristics of Zein Biofilms with Added Xanthan Gum |
| title_fullStr | Morphological and Structural Characteristics of Zein Biofilms with Added Xanthan Gum |
| title_full_unstemmed | Morphological and Structural Characteristics of Zein Biofilms with Added Xanthan Gum |
| title_short | Morphological and Structural Characteristics of Zein Biofilms with Added Xanthan Gum |
| title_sort | Morphological and Structural Characteristics of Zein Biofilms with Added Xanthan Gum |
| topic | zein biofilms Xanthan gum morphological properties structural properties |
| topic_facet | zein biofilms Xanthan gum morphological properties structural properties |
| url | http://www.ftb.com.hr/index.php/archives/62-volume-48-issue-no-1/168 http://hdl.handle.net/11449/21882 |