Mechanical and barrier properties of corn distarch phosphate-zein bilayer films by thermocompression

Haitao Sun; Xinru Shao; Ruiping Jiang; Zhimin Shen; Zhongsu Ma

doi:10.1016/j.ijbiomac.2018.07.069

Mechanical and barrier properties of corn distarch phosphate-zein bilayer films by thermocompression

Int J Biol Macromol. 2018 Oct 15;118(Pt B):2076-2081. doi: 10.1016/j.ijbiomac.2018.07.069. Epub 2018 Jul 20.

Authors

Haitao Sun¹, Xinru Shao², Ruiping Jiang², Zhimin Shen³, Zhongsu Ma⁴

Affiliations

¹ College of Food Science and Engineering, Tonghua Normal University, No. 950 Yucai Road, Tonghua 134000, Jilin, PR China; Changbai Mountain Edible Plant Resources Development Engineering Center, Tonghua Normal University, No. 950 Yucai Road, Tonghua 134000, Jilin, PR China. Electronic address: sunhaitaoth@126.com.
² College of Food Science and Engineering, Tonghua Normal University, No. 950 Yucai Road, Tonghua 134000, Jilin, PR China; Changbai Mountain Edible Plant Resources Development Engineering Center, Tonghua Normal University, No. 950 Yucai Road, Tonghua 134000, Jilin, PR China.
³ College of Food Science and Engineering, Tonghua Normal University, No. 950 Yucai Road, Tonghua 134000, Jilin, PR China.
⁴ College of Food Science and Engineering, Jilin University, No. 5333 Xi'an Road, Changchun 130062, Jilin, PR China.

PMID: 30009915
DOI: 10.1016/j.ijbiomac.2018.07.069

Abstract

Corn distarch phosphate-zein bilayer films (C-Z) fabricated from corn distarch phosphate-based films (C) laminated on zein-based films (Z) by thermocompression. The strong interaction between starch and zein molecules was formed by hydrogen bonding, which resulted in good thermal stability of bilayer films. Moreover, bilayer films exhibited better mechanical properties and ductility than monolayer Z films, and concomitantly enhanced the moisture barrier and oxygen barrier for monolayer C films. The tensile strength (TS) and elongation at break (EAB) of the C-Z bilayer films (the ratio C:Z was 6:4) increased by 74.04% and 348.13% over the Z films, respectively. Compared with C films, the water vapor permeability (WVP) and oxygen permeability (OP) of the C-Z bilayer films (the ratio C:Z was 6: 4) decreased by 31.53 and 24.26%, respectively.

Keywords: Bilayer films; Corn distarch phosphate-zein; Thermocompression.

MeSH terms

Lipid Bilayers / chemistry*
Mechanical Phenomena*
Oxygen / analysis
Permeability
Phosphates / chemistry*
Spectroscopy, Fourier Transform Infrared
Starch / chemistry*
Steam / analysis
Temperature*
Tensile Strength
X-Ray Diffraction
Zea mays / chemistry*
Zein / chemistry*

Substances

Lipid Bilayers
Phosphates
Steam
Starch
Zein
Oxygen