期刊
INORGANIC AND NANO-METAL CHEMISTRY
卷 52, 期 5, 页码 661-667出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/24701556.2021.1946697
关键词
Bio-nanocomposite; carboxymethyl cellulose; Psidium guajava; copper nanoparticles; antimicrobial activity
Antimicrobial CMC/P/Cu nanocomposite films were prepared using a green synthesis method, showing excellent oxygen and water vapor transmission rates at different concentrations. The films exhibited tetragonal CuNPs formation on the surface morphology, with strong antimicrobial properties against various bacterial cultures, making them suitable for food packaging applications.
Antimicrobial carboxymethyl cellulose (CMC)/pectin (P)/copper (Cu) nanocomposite films were prepared by a facile approach. Copper nanoparticles (CuNPs) were prepared initially using Psidium guajava leaf extract by a green synthesis method. The CuNPs were incorporated into the CMC/P films at various concentrations. The films were characterized using a universal testing machine (mechanical strength); 2-10% CuNPs addition did not significantly increase the tensile strength, but the oxygen transmission rate (OTR) and water vapor transmission rate were changed significantly by the addition of 2% and 4% of CuNPs, respectively. The scanning electron microscopy data showed tetragonal CuNPs formation in the surface morphology of the nanocomposite films. The antimicrobial properties tests showed larger clear inhibition zones for the nanocomposite films compared to the pure CMC/P films against three different bacterial cultures. The results revealed that the CMC/P/Cu nanocomposite films could be used as an active packaging system in food applications.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据