Novel PVA/carboxylated cellulose antimicrobial hydrogel grafted with curcumin and epsilon-polylysine for chilled chicken preservation
文献类型： 外文期刊
作者： Mai, Xutao 1 ; Zhang, Xinxiao 1 ; Wang, Wenzhuo 1 ; Zheng, Yuhang 1 ; Wang, Daoying 1 ; Xu, Weimin 1 ; Liu, Fang 2 ; Sun, Zhilan 1 ;
作者机构： 1.Minist Sci & Technol, Jiangsu Key Lab Food Qual & Safety, State Key Lab Cultivat Base, Nanjing 210014, Peoples R China
2.Jiangsu Acad Agr Sci, Inst Agr Prod Proc, Nanjing 210014, Peoples R China
3.Minist Agr & Rural Affairs, Key Lab Cold Chain Logist Technol Agroprod, Nanjing 210014, Peoples R China
4.Nanjing Normal Univ, Sch Food Sci & Pharmaceut Engn, Nanjing 210097, Peoples R China
关键词： Carboxylated cellulose; Curcumin; epsilon-Polylysine; Bactericidal activity; Graft
期刊名称：FOOD CHEMISTRY （ 影响因子：8.8； 五年影响因子：8.6 ）
ISSN： 0308-8146
年卷期： 2023 年 424 卷
页码：
收录情况： SCI
摘要： PVA/CC/CUR/PL composite films containing curcumin (CUR) and e-polylysine (PL) were prepared by casting and chemical grafting methods to address the threat to food spoilage. Morphological analysis showed that the grafting of CUR and PL resulted in a rough cross-section of the polymer matrix. Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD) analysis confirmed the grafting of CUR and PL into the polymer matrix via esterification and amidation reactions, respectively. Thermal weight loss analysis showed that grafting process positively improved the thermal stability. The PVA/CC/CUR/PL films exhibited strong bactericidal ac-tivity, reaching 99.0% and 99.8% for Pseudomonas lundensis and Shewanella putrefaciens, respectively. After 8 days of storage, the total number of colonies and the TVB-N content in the PVA/CC/CUR/PL group decreased by 1.51 lg CFU/g and 13.77 mg/100 g, respectively. Therefore, PVA/CC/CUR/PL films are considered as a prom-ising bactericidal material with good mechanical properties, functionality, and other excellent characteristics.
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