El Fawal Gomaa F, Omer Ahmed M, Tamer Tamer M
Polymer Materials Research Department, Advanced Technology and New Material Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City, Alexandria 21934 Egypt.
J Food Sci Technol. 2019 Mar;56(3):1510-1518. doi: 10.1007/s13197-019-03642-8. Epub 2019 Feb 19.
Enhancement of natural based polymeric membranes for active packaging takes the attention of scientists. Their biological activities can be obtained by adding essential oils, which are natural extracts with antimicrobial and antioxidant properties. The target of current work aimed to produce bio-active membranes from cellulose acetate incorporated with and oil. The developed film's chemical structures and morphologies were investigated using FT-IR and SEM characterization tools. The impact of essential oils incorporation on water uptake, wettability behavior, and mechanical properties were explored. The results displayed that antimicrobial activity against () and () increased as and oil percentage increases in cellulose acetate membranes. In addition, higher activity against compared to was also observed. Moreover, free radical scavenger activity (ABTS and DPPH) of cellulose acetate membranes, improved by increasing the essential oil content in the feed mixture. The obtained results provide a high potential for production of an efficient food packaging membrane from cellulose acetate containing and oil.
用于活性包装的天然基聚合物膜的增强引起了科学家们的关注。它们的生物活性可以通过添加精油来获得，精油是具有抗菌和抗氧化特性的天然提取物。当前工作的目标是用掺入[此处原文缺失两种油的具体名称]油的醋酸纤维素制备生物活性膜。使用傅里叶变换红外光谱（FT-IR）和扫描电子显微镜（SEM）表征工具研究了所制备薄膜的化学结构和形态。探讨了掺入精油对吸水性、润湿性行为和机械性能的影响。结果表明，随着醋酸纤维素膜中[此处原文缺失两种油的具体名称]油百分比的增加，对[此处原文缺失两种菌的具体名称]（[菌名1]）和[此处原文缺失两种菌的具体名称]（[菌名2]）的抗菌活性增强。此外，还观察到对[此处原文缺失一种菌的具体名称]（[菌名3]）的活性高于对[此处原文缺失一种菌的具体名称]（[菌名4]）。此外，通过增加进料混合物中精油的含量，醋酸纤维素膜的自由基清除活性（ABTS和DPPH）得到改善。所得结果为用含有[此处原文缺失两种油的具体名称]油的醋酸纤维素生产高效食品包装膜提供了很大潜力。
