Influence of gamma rays on the physico-chemical, release and antibacterial characteristics of low-density polyethylene composite films incorporating an essential oil for application in food-packaging

被引：8

作者：

Swilem, Ahmed E. ^{[1
]}

Stloukal, Petr ^{[2
]}

Abd El-Rehim, Hassan A. ^{[3
]}

Hrabalikova, Martina ^{[2
]}

Sedlarik, Vladimir ^{[2
]}

机构：

[1] Ain Shams Univ, Fac Sci, Dept Chem, Cairo 11566, Egypt

[2] Tomas Bata Univ Zlin, Univ Inst, Ctr Polymer Syst, Tr Tomas Bati 5678, Zlin 76001, Czech Republic

[3] Atom Energy Author, Natl Ctr Radiat Res & Technol, Dept Polymers, Cairo 11371, Egypt

来源：

FOOD PACKAGING AND SHELF LIFE | 2019年 / 19卷

关键词：

Low-density polyethylene composite; 4-Allylanisole; Gamma irradiation; Antimicrobial packaging; Controlled release; ELECTRON-BEAM IRRADIATION; ADSORPTION;

D O I：

10.1016/j.fpsl.2018.11.014

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

We investigated the effect of gamma irradiation on the properties of low-density polyethylene composite films incorporated with the antimicrobial terpene 4-allylanisole (ALY), and the volatile release of ALY. For comparison, wood flour and molecular sieves were used as solid carriers for ALY at loading ratios of 20 and 30 wt.%. Infrared spectroscopy indicated that a proportion of ALY underwent structural change during melt-compounding and irradiation at high doses ( > 10 kGy). Thermal and mechanical properties of composites prepared did not alter remarkably after irradiation. The release study of ALY showed that using wood flour and irradiation reduced the volatilization of ALY from the polymer matrix; however, the effect exerted by irradiation treatment was less noticeable than that of the carrier type. The antibacterial activity study demonstrated that irradiation only exerted a pronounced negative effect on samples that contained 30 wt. 0 /0 of ALY/wood flour when irradiated at 30 and 50 kGy.

引用

页码：131 / 139

页数：9