期刊
LWT-FOOD SCIENCE AND TECHNOLOGY
卷 46, 期 1, 页码 110-117出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.lwt.2011.10.018
关键词
Cassava starch; Glycerol; Clay; Tensile properties; Barrier properties
资金
- FAPESP (The State of Sao Paulo Research Foundation)
- CAPES (Brazilian Committee for Postgraduate Courses in Higher Education)
In this this study, glycerol content and its incorporation method on tensile and barrier properties of biodegradable films (BF) based on cassava starch were analyzed. ANOVA showed that the glycerol incorporation method did not influence the results (P > 0.05), however the glycerol content influenced significantly the tensile and barrier properties of the films (P < 0.05). Films prepared with lower glycerol content presented better tensile and barrier properties than films with higher content. Films were then prepared with addition of clay nanoparticles and their tensile and barrier properties and glass transition temperature were measured. ANOVA indicated that both glycerol and clay nanoparticles influenced significantly the tensile and barrier properties (P < 0.05), diminishing film permeability when clay nanoparticles were present, while the glass transition temperature was not influenced (P > 0.05). (C) 2011 Elsevier Ltd. All rights reserved.
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