文献类型：期刊文献

英文题名：Physical properties and antibacterial activity of the composited films based on carboxymethyl cellulose and gelatin functionalized with ε-polylysine

作者：He, Beibei[1,2,3];Wang, Yifei[1,2];Jiang, Zixuan[1,2];Liu, Shucheng[3];Zhu, Jie[1,2,3,4]

机构：[1]Northwest A&F Univ, Inst Biophys, Lab Muscle & Meat Biophys, Yangling 712100, Shaanxi, Peoples R China;[2]Northwest A&F Univ, Coll Sci, Lab Muscle & Meat Biophys, Yangling 712100, Shaanxi, Peoples R China;[3]Guangdong Ocean Univ, Coll Food Sci & Technol, Guangdong Prov Key Lab Aquat Prod Proc & Safety, Zhanjiang 524088, Guangdong, Peoples R China;[4]Northwest A&F Univ, Natl Beef Cattle Improvement Ctr, Lab Muscle Biol & Meat Sci, Yangling 712100, Shaanxi, Peoples R China

年份：2021

卷号：191

起止页码：1126

外文期刊名：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES

收录：SCI-EXPANDED(收录号：WOS:000710517600005)、、EI(收录号：20240815602453)、Scopus(收录号：2-s2.0-85116168835)、WOS

语种：英文

外文关键词：Carboxymethyl cellulose film; epsilon-Polylysine; Atomic force microscopy; Physical properties; Antibacterial activity

外文摘要：Antibacterial composite films were produced from carboxymethyl cellulose-gelatin (CMC-Gel) blend with different concentration of epsilon-polylysine (epsilon-PL) and their physical and chemical properties were characterized. Compared with the control CMC-Gel film, the functionalized films had almost indistinguishable crystalline type, thickness, tensile strength, and elongation at break, however, poor water vapor barrier properties. The results showed that the epsilon-PL was well incorporated into CMC-Gel matrix by electrostatic interaction, as the changes of absorption peaks in the Fourier transform infrared spectrometer and the increase of glass transition temperature in differential scanning calorimeter. The films containing epsilon-PL showed excellent antibacterial activity against S. aureus, B. subtilis, E. coli and P. aeruginosa. In the composting experiment, the films become degraded on the seventh day, and further degraded with the growth of molds over time. The present results showed that the active films could be a potential material for food packaging.