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Influence of chitosan concentration on mechanical and barrier properties of corn starch/chitosan films.
Int J Biol Macromol. 2017 Dec; 105(Pt 3):1636-1643.IJ

Abstract

The active packaging films based on corn starch and chitosan were prepared through mixing the starch solution and the chitosan solution (1:1) by casting. The aim of this work was to characterize and analyze the effects of the chitosan concentrations (0, 21, 41, 61 and 81wt% of starch) on physicochemical, mechanical and water vapor barrier properties as well as morphological characteristics of the corn starch/chitosan (CS/CH) films. Starch molecules and chitosan could interact through hydrogen bonding as confirmed from the shift of the main peaks to higher wavenumbers in FTIR and the reduction of crystallinity in XRD. Results showed that the incorporation of chitosan resulted in an increase in film solubility, total color differences, tensile strength and elongation at break and a decrease in Young's modulus and water vapor permeability (WVP). Elongation at break of the CS/CH films increased with increasing of chitosan concentration, and reached a maximum at 41 wt%, then declined at higher chitosan concentration. The WVP of CS/CH films increased with an increase of chitosan concentration and the same tendency observed for the moisture content. The results suggest that this biodegradable CS/CH films could potentially be used as active packaging films for food and pharmaceutical applications.

Authors+Show Affiliations

Key Laboratory of Bionic Engineering (Ministry of Education), College of Biological and Agricultural Engineering, Jilin University, Changchun 130022, China; College of Chemistry, Jilin University, Changchun 130012, China. Electronic address: liliren@jlu.edu.cn.Key Laboratory of Bionic Engineering (Ministry of Education), College of Biological and Agricultural Engineering, Jilin University, Changchun 130022, China.Key Laboratory of Bionic Engineering (Ministry of Education), College of Biological and Agricultural Engineering, Jilin University, Changchun 130022, China.Key Laboratory of Bionic Engineering (Ministry of Education), College of Biological and Agricultural Engineering, Jilin University, Changchun 130022, China.College of Chemistry, Jilin University, Changchun 130012, China.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

28167105

Citation

Ren, Lili, et al. "Influence of Chitosan Concentration On Mechanical and Barrier Properties of Corn Starch/chitosan Films." International Journal of Biological Macromolecules, vol. 105, no. Pt 3, 2017, pp. 1636-1643.
Ren L, Yan X, Zhou J, et al. Influence of chitosan concentration on mechanical and barrier properties of corn starch/chitosan films. Int J Biol Macromol. 2017;105(Pt 3):1636-1643.
Ren, L., Yan, X., Zhou, J., Tong, J., & Su, X. (2017). Influence of chitosan concentration on mechanical and barrier properties of corn starch/chitosan films. International Journal of Biological Macromolecules, 105(Pt 3), 1636-1643. https://doi.org/10.1016/j.ijbiomac.2017.02.008
Ren L, et al. Influence of Chitosan Concentration On Mechanical and Barrier Properties of Corn Starch/chitosan Films. Int J Biol Macromol. 2017;105(Pt 3):1636-1643. PubMed PMID: 28167105.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Influence of chitosan concentration on mechanical and barrier properties of corn starch/chitosan films. AU - Ren,Lili, AU - Yan,Xiaoxia, AU - Zhou,Jiang, AU - Tong,Jin, AU - Su,Xingguang, Y1 - 2017/02/03/ PY - 2016/12/22/received PY - 2017/01/13/revised PY - 2017/02/02/accepted PY - 2017/2/9/pubmed PY - 2018/6/5/medline PY - 2017/2/8/entrez KW - Barrier properties KW - Chitosan KW - Corn starch KW - Mechanical properties SP - 1636 EP - 1643 JF - International journal of biological macromolecules JO - Int J Biol Macromol VL - 105 IS - Pt 3 N2 - The active packaging films based on corn starch and chitosan were prepared through mixing the starch solution and the chitosan solution (1:1) by casting. The aim of this work was to characterize and analyze the effects of the chitosan concentrations (0, 21, 41, 61 and 81wt% of starch) on physicochemical, mechanical and water vapor barrier properties as well as morphological characteristics of the corn starch/chitosan (CS/CH) films. Starch molecules and chitosan could interact through hydrogen bonding as confirmed from the shift of the main peaks to higher wavenumbers in FTIR and the reduction of crystallinity in XRD. Results showed that the incorporation of chitosan resulted in an increase in film solubility, total color differences, tensile strength and elongation at break and a decrease in Young's modulus and water vapor permeability (WVP). Elongation at break of the CS/CH films increased with increasing of chitosan concentration, and reached a maximum at 41 wt%, then declined at higher chitosan concentration. The WVP of CS/CH films increased with an increase of chitosan concentration and the same tendency observed for the moisture content. The results suggest that this biodegradable CS/CH films could potentially be used as active packaging films for food and pharmaceutical applications. SN - 1879-0003 UR - https://www.unboundmedicine.com/medline/citation/28167105/Influence_of_chitosan_concentration_on_mechanical_and_barrier_properties_of_corn_starch/chitosan_films_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0141-8130(17)30429-4 DB - PRIME DP - Unbound Medicine ER -