Cassava starch biodegradable films: Influence of glycerol and clay nanoparticles content on tensile and barrier properties and glass transition temperature

被引：209

作者：

Souza, A. C. ^{[1
]}

Benze, R. ^{[1
]}

Ferrao, E. S. ^{[1
]}

Ditchfield, C. ^{[2
]}

Coelho, A. C. V. ^{[3
]}

Tadini, C. C. ^{[1
]}

机构：

[1] Univ Sao Paulo, Dept Chem Engn, Escola Politecn, BR-05424970 Sao Paulo, Brazil

[2] Univ Sao Paulo, Dept Food Engn, BR-13635900 Pirassununga, SP, Brazil

[3] Univ Sao Paulo, Dept Met & Mat Engn, Escola Politecn, BR-05424970 Sao Paulo, Brazil

来源：

LWT-FOOD SCIENCE AND TECHNOLOGY | 2012年 / 46卷 / 01期

基金：

巴西圣保罗研究基金会;

关键词：

Cassava starch; Glycerol; Clay; Tensile properties; Barrier properties; MECHANICAL-PROPERTIES; EDIBLE FILMS; FUNCTIONAL-PROPERTIES; THERMOPLASTIC STARCH; PHYSICAL-PROPERTIES; WATER ACTIVITY; GUM FILMS; NANOCOMPOSITES; PLASTICIZERS; ADDITIVES;

D O I：

10.1016/j.lwt.2011.10.018

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

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.

引用

页码：110 / 117

页数：8

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