文献类型：期刊文献

英文题名：Developing fisetin-AgNPs incorporated in reinforced chitosan/pullulan composite-film and its application of postharvest storage in litchi fruit

作者：Qi, Zhiwen[1,2] Xie, Pujun[1,2] Yang, Chen[4] Xue, Xingying[1] Chen, Hongxia[1] Zhou, Hao[1] Yuan, Hua[1] Yang, Guliang[3] Wang, Chengzhang[1]

第一作者：Qi, Zhiwen;齐志文

机构：[1] National Engineering Lab. for Biomass Chemical Utilization, Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Jiangsu, Nanjing, 210042, China; [2] Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu, Nanjing, 210042, China; [3] National Engineering Laboratory for Rice and By-products Processing, Food Science and Engineering College, Central South University of Forestry and Technology, Hunan, Changsha, 410004, China; [4] R&D Center of Yunnan Tin Group [holding] Co., Ltd., Kunming, 650000, China

年份：2023

卷号：407

外文期刊名：Food Chemistry

收录：EI(收录号：20225113258145);Scopus(收录号：2-s2.0-85143912188)

语种：英文

外文关键词：Aspergillus - Fruits - Hydrogen bonds - Microorganisms - Nanocomposite films - Self assembly - Silver nanoparticles - Tensile strength

摘要：In this study, Toxicodendron vernicifluum fisetin chelated silver nanoparticles (FT-AgNPs) with outstanding antioxidant and antimicrobial activities were constructed via self-assembly. To surprise, 0.6 wt% FT-AgNPs was compatibly dispersed into the 1:1 chitosan/pullulan (CS/PUL, CP) matrix. The hydrogen bonding and electrostatic interaction between FT-AgNPs and CP, slightly increased the CP thermal stability, and greatly enhanced the tensile strength to 61.2 MPa, water vapor permeability below 20 kg/m2?d. Furthermore, after treated with the composite hydrocolloid film (FT-AgNPs/CP), the reactive oxygen species level of the treated Aspergillus niger cells was significantly increased, and the membrane permeability was enhanced. It effectively slowed down the decay of litchi fruit induced by microbial infection under the storage at 25 °C (15 d of the 0.6 % FT-AgNPs/CP treatment vs 9 d of the control). In addition, 0.024 μg/kg Ag+ residual in lichi pulp verified the qualified safety of the application of the 0.6 % FT-AgNPs/CP. ? 2022 Elsevier Ltd