Preparation and characterization of quercetin@ZIF-L/GO@AgNPs nanocomposite film for room-temperature strawberry preservation
文献类型： 外文期刊
作者： Yin C.;Ding X.;Lin Z.;Cao J.;Shi W.;Wang J.;Xu D.;Xu D.;Liu Y.;Liu G.
作者机构：
关键词： Food packaging;GO@Ag NPs;Leaf-like ZIF-8;Nanocomposite films;Quercetin adsorption and recognition;Strawberry preservation
期刊名称： Food Chemistry
ISSN： 0308-8146
年卷期： 2024 年 450 卷
页码：
收录情况： SCIE（2024版） ; ; EI（2024版）
摘要： Fresh strawberries are easily contaminated by microorganisms after picking. Therefore, how to effectively store and keep fresh strawberries has been a hot topic for scientists to study. In this study, we prepared a leaf shaped metal organic framework nanomaterial loaded with quercetin (Quercetin@ZIF-L) at first, which can achieve effective loading of quercetin (96%) within 45 min and has a controlled release effect under acidic conditions. In addition, by cleverly combining satellite graphene oxide @ silver nanoparticles (GO@AgNPs) with slow precipitation performance, Quercetin@ZIF-L/GO@AgNPs nanocomposite film with larger pore size and larger specific surface area was prepared by scraping method. The characterization data of water flux, retention rate, flux recovery rate and water vapor permeability show that the composite film has good physical properties. The experiment of film packaging showed that the fresh life of strawberry could be extended from 3 to 8 days, which significantly improved the storage and freshness cycle of strawberry. At the same time, the metal migration test proved that the residual amount of silver ion in strawberry met the EU standard and zinc ions are beneficial to the health, enriching the types of high-performance fresh-keeping materials and broadening the application. © 2024 Elsevier Ltd
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