文献类型：期刊文献

英文题名：Aqueous assembly of AgNPs with camellia seed cake polyphenols and its application as a postharvest anti-Penicillium digitatum agent via increasing reactive oxygen species generation

作者：Yang, Guliang[1] Qi, Zhiwen[2] Shan, Sijie[1] Lu, Kun[1] Zhou, Junqin[3] Yang, Liying[3] Tan, Xiaofeng[3]

第一作者：Yang, Guliang

通信作者：Qi, ZW[1];Tan, XF[2]

机构：[1]Cent South Univ Forestry & Technol, Food Sci & Engn Coll, Natl Engn Lab Rice & By Prod Deep Proc, Changsha 410004, Hunan, Peoples R China;[2]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Natl Engn Lab Biomass Chem Utilizat, Nanjing 210042, Jiangsu, Peoples R China;[3]Cent South Univ Forestry & Technol, Acad Camellia Oil Tree, Collaborat Innovat Ctr Cultivat & Utilizat Nonwood, Key Lab Cultivat & Protect Nonwood Forest Trees,Mi, Changsha 410004, Hunan, Peoples R China

年份：2023

卷号：206

外文期刊名：POSTHARVEST BIOLOGY AND TECHNOLOGY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001070957700001)】；

基金：This work was financially supported by the Hunan Innovative Province Releases Commanding and Unveiling Project (2021JC0007), the Hunan Natural Science Foundation Project (2021JJ31154) and the Scientific Research Projects of Hunan Provincial Department of Education of China (No. 21C0148).

语种：英文

外文关键词：Camellia seed cake polyphenols; AgNPs; Antimicrobial activity; Storage preservation

摘要：In this study, we developed a method for synthesizing silver nanoparticles (AgNPs) using aqueous assembly assay and anchoring them with camellia seed cake polyphenols (CPs). Zeta potential analysis demonstrated a higher binding affinity of CP-AgNPs to Penicillium digitatum, which could be attributed to the interaction between the hydroxyl group of CP-AgNPs and the polysaccharide present on the fungal cell wall. Compared to AgNPs, the CPAgNPs outperformed conventional AgNPs in antifungal activity against P. digitatum. The mechanism underlying this antimicrobial effect involves raising the level of oxidative stress by regulating the expression levels of oxidative stress response genes. In addition, CP-AgNPs/CS showed highly effective in reducing citrus decay levels during chamber storage. In conclusion, the use of CPs as anchoring agent in the in-situ aqueous assembly of CPAgNPs improved their biocompatibility and antimicrobial properties. CP-AgNPs hold great promise for applications in fruit preservation, especially citrus preservation.