Water barrier properties of starch films reinforced with cellulose nanocrystals obtained from sugarcane bagasse

被引：215

作者：

Slavutsky, Anibal M. ^{[1
]}

Bertuzzi, Maria A. ^{[2
]}

机构：

[1] Univ Nacl Salta, CIUNSa, Agencia Nacl Promoc Cient & Tecnol ANPCyT, Salta, Argentina

[2] Univ Nacl Salta, CIUNSa, CONICET, Inst Invest Ind Quim,Fac Ingn, Salta, Argentina

来源：

CARBOHYDRATE POLYMERS | 2014年 / 110卷

关键词：

Starch/CNC film; Sorption isotherms; Water barrier properties; Permeability; Diffusivity; NANOCOMPOSITE FILMS; VAPOR PERMEABILITY; SORPTION; FIBERS;

D O I：

10.1016/j.carbpol.2014.03.049

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Water transport in edible films based on hydrophilic materials such as starch, is a complex phenomenon due to the strong interaction of sorbed water molecules with the polymeric structure. Cellulose nanocrystals (CNC) were obtained from sugarcane bagasse. Starch and starch/CNC films were formulated and their water barrier properties were studied. The measured film solubility, contact angle, and water sorption isotherm indicated that reinforced starch/CNC films have a lower affinity to water molecules than starch films. The effects that the driving force and the water activity (a(w)) values at each side of the film have on permeability were analyzed. Permeability, diffusivity, and solubility coefficients indicated that the permeation process depends mostly on the tortuous pathway formed by the incorporation of CNC and therefore were mainly controlled by water diffusion. The interaction between CNC and starch chain is favoured by the chemical similarities of both molecules. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：53 / 61

页数：9

共 48 条

[1] Comparing physico-mechanical and thermal properties of alginate nanocomposite films reinforced with organic and/or inorganic nanofillers [J].

Abdollahi, Mehdi ;

Alboofetileh, Mehdi ;

Rezaei, Masoud ;

Behrooz, Rabi .

FOOD HYDROCOLLOIDS, 2013, 32 (02) :416-424

[2] Moisture sorption isotherm characteristics of food products: A review [J].

Al-Muhtaseb, AH ;

McMinn, WAM ;

Magee, TRA .

FOOD AND BIOPRODUCTS PROCESSING, 2002, 80 (C2) :118-128

[3]

[Anonymous], 2000, D882 ASTM

[4]

ASTM, 2000, ASTM E96: Standard Test Methods for Water Vapor Transmission of Materials

[5] Water sorption behavior and gas barrier properties of cellulose whiskers and microfibrils films [J].

Belbekhouche, Sabrina ;

Bras, Julien ;

Siqueira, Gilberto ;

Chappey, Corinne ;

Lebrun, Laurent ;

Khelifi, Bertine ;

Marais, Stephane ;

Dufresne, Alain .

CARBOHYDRATE POLYMERS, 2011, 83 (04) :1740-1748

[6] Water vapor permeability of edible starch based films [J].

Bertuzzi, M. A. ;

Vidaurre, E. F. Castro ;

Armada, M. ;

Gottifredi, J. C. .

JOURNAL OF FOOD ENGINEERING, 2007, 80 (03) :972-978

[7] Thermodynamic analysis of water vapour sorption of edible starch based films [J].

Bertuzzi, MA ;

Armada, M ;

Gottifredi, JC .

FOOD SCIENCE AND TECHNOLOGY INTERNATIONAL, 2003, 9 (02) :115-121

[8] HPMC reinforced with different cellulose nano-particles [J].

Bilbao-Sainz, Cristina ;

Bras, Julien ;

Williams, Tina ;

Senechal, Tangi ;

Orts, William .

CARBOHYDRATE POLYMERS, 2011, 86 (04) :1549-1557

[9] Optimization of the isolation of nanocrystals from microcrystalline cellulose by acid hydrolysis [J].

Bondeson, D ;

Mathew, A ;

Oksman, K .

CELLULOSE, 2006, 13 (02) :171-180

[10] Polylactic acid/cellulose whisker nanocomposites modified by polyvinyl alcohol [J].

Bondeson, Daniel ;

Oksman, Kristiina .

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING, 2007, 38 (12) :2486-2492

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