热压法制备玉米双淀粉磷酸盐-玉米醇溶蛋白双层膜的力学和阻隔性能。
Mechanical and barrier properties of corn distarch phosphate-zein bilayer films by thermocompression.
机构信息
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.
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.
出版信息
Int J Biol Macromol. 2018 Oct 15;118(Pt B):2076-2081. doi: 10.1016/j.ijbiomac.2018.07.069. Epub 2018 Jul 20.
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.
由玉米淀粉磷酸酯基薄膜 (C) 通过热压层压在玉米醇溶蛋白基薄膜 (Z) 上制备的玉米淀粉磷酸-醇溶蛋白双层膜 (C-Z)。淀粉和醇溶蛋白分子之间通过氢键形成强相互作用，导致双层膜具有良好的热稳定性。此外，双层膜表现出比单层 Z 膜更好的机械性能和延展性，同时提高了单层 C 膜的防潮性和阻氧性。与 Z 膜相比，C-Z 双层膜的拉伸强度 (TS) 和断裂伸长率 (EAB) 分别提高了 74.04%和 348.13%，其中 C:Z 的比例为 6:4。与 C 膜相比，C-Z 双层膜 (C:Z 的比例为 6:4) 的水蒸气透过率 (WVP) 和氧气透过率 (OP) 分别降低了 31.53%和 24.26%。
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