Barrier and antimicrobial properties of PVA films incorporated with ZnO nanoparticles and stearic acid

[摘要] The barrier properties of a polymer film is very important for application as packaging material. Moreover, packaging materials with antimicrobial properties give advantages to prolong the shelf life of perishable foodstuff. Polyvinyl alcohol (PVA) is a water-soluble polymer, which has good oxygen barrier properties, but this depends on the humidity, as PVA is sensitive to moisture. The purpose of this study was to assess the characterization of bio-based nanocomposite films of PVA with the addition of ZnO nanoparticles and stearic acid. Bionanocomposite films were prepared by PVA dissolving in distilled and a range of ZnO nanoparticle formulations (and/or stearic acid) was added. Response Surface Methodology data analysis showed all response models qualified as good models with adequate presision (greater than 4). Result revealed that the addition of ZnO nanoparticles and/or stearic acid can reduce the water vapor transmission rate of the resulting film, lower light transmission, as well as results in antimicrobial properties.

[发布机构] Department of Food Technology, Faculty of Agriculture, Sultan Ageng Tirtayasa University, Jl Raya Pakupatan Km 4, Serang; 42121, Indonesia^1;Food Technology Department, Faculty of Engineering, Bina Nusantara University, Jakarta; 11480, Indonesia^2;Department of Food Science and Tehnology, Faculty of Agricultural Technology, Bogor Agricultural University, Jl. Raya Darmaga, Bogor; 16680, Indonesia^3;Research Center for Postharvest Development and Agriculture, Jl. Tentara Pelajar No. 12, Bogor; 16114, Indonesia^4

[学科分类] 环境科学（综合）

[关键词] Anti-microbial properties;Barrier properties;Bionanocomposite films;Oxygen barrier properties;Perishable foodstuffs;Poly (vinyl alcohol) (PVA);Response surface methodology;Water vapor transmission rate