{"title":"Cellulose nanofiber-stabilized Pickering emulsions for active food packaging: A review","authors":"Huaqiang Cao , Qi Li , Shilin Liu","doi":"10.1016/j.tifs.2026.105548","DOIUrl":null,"url":null,"abstract":"<div><h3>Background</h3><div>Active packaging is an advanced technological approach that not only provides physical protection but also actively preserves food quality and extends shelf life. Given the sustainability challenges associated with petroleum-based plastics, cellulose nanofibers (CNFs) have emerged as a promising bio-based solid particle stabilizer for surfactant-free Pickering emulsions (PEs). Distinguished from other food-grade biomacromolecules, CNFs offer distinct advantages such as renewability, tunable surface chemistry, and high aspect ratio. These characteristics enable CNFs to effectively stabilize PEs, thereby facilitating the development of multifunctional active packaging systems with improved barrier resistance, mechanical strength, and controlled release functionality.</div></div><div><h3>Scope and approach</h3><div>This review systematically summarizes recent advances in the development and application of CNF-stabilized PEs for food packaging, with a focus on oil–water interfacial engineering. It covers emerging CNFs sources (like coffee grounds and straws), preparation methods, and the critical relationships between CNFs structure, emulsion performance, and packaging functionality, offering a comprehensive perspective on their role in advanced food packaging systems.</div></div><div><h3>Key findings and conclusions</h3><div>CNFs derived from various natural materials provide unique structural attributes to emulsions. Both CNFs and CNF-based PEs exhibit minimal cytotoxicity, supporting their suitability for edible and biodegradable packaging. The functional performance of the resulting packaging materials, including barrier, mechanical, and active-release properties, can be precisely tailored through Pickering interfacial engineering. Despite promising progress, challenges remain in scaling up production, ensuring cost-effectiveness, and validating efficacy in real-food applications. Future research should emphasize green processing routes and promote commercial adoption to meet evolving industry demands.</div></div>","PeriodicalId":441,"journal":{"name":"Trends in Food Science & Technology","volume":"169 ","pages":"Article 105548"},"PeriodicalIF":17.4000,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Trends in Food Science & Technology","FirstCategoryId":"97","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0924224426000208","RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2026/1/5 0:00:00","PubModel":"Epub","JCR":"Q1","JCRName":"FOOD SCIENCE & TECHNOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Background
Active packaging is an advanced technological approach that not only provides physical protection but also actively preserves food quality and extends shelf life. Given the sustainability challenges associated with petroleum-based plastics, cellulose nanofibers (CNFs) have emerged as a promising bio-based solid particle stabilizer for surfactant-free Pickering emulsions (PEs). Distinguished from other food-grade biomacromolecules, CNFs offer distinct advantages such as renewability, tunable surface chemistry, and high aspect ratio. These characteristics enable CNFs to effectively stabilize PEs, thereby facilitating the development of multifunctional active packaging systems with improved barrier resistance, mechanical strength, and controlled release functionality.
Scope and approach
This review systematically summarizes recent advances in the development and application of CNF-stabilized PEs for food packaging, with a focus on oil–water interfacial engineering. It covers emerging CNFs sources (like coffee grounds and straws), preparation methods, and the critical relationships between CNFs structure, emulsion performance, and packaging functionality, offering a comprehensive perspective on their role in advanced food packaging systems.
Key findings and conclusions
CNFs derived from various natural materials provide unique structural attributes to emulsions. Both CNFs and CNF-based PEs exhibit minimal cytotoxicity, supporting their suitability for edible and biodegradable packaging. The functional performance of the resulting packaging materials, including barrier, mechanical, and active-release properties, can be precisely tailored through Pickering interfacial engineering. Despite promising progress, challenges remain in scaling up production, ensuring cost-effectiveness, and validating efficacy in real-food applications. Future research should emphasize green processing routes and promote commercial adoption to meet evolving industry demands.
期刊介绍:
Trends in Food Science & Technology is a prestigious international journal that specializes in peer-reviewed articles covering the latest advancements in technology, food science, and human nutrition. It serves as a bridge between specialized primary journals and general trade magazines, providing readable and scientifically rigorous reviews and commentaries on current research developments and their potential applications in the food industry.
Unlike traditional journals, Trends in Food Science & Technology does not publish original research papers. Instead, it focuses on critical and comprehensive reviews to offer valuable insights for professionals in the field. By bringing together cutting-edge research and industry applications, this journal plays a vital role in disseminating knowledge and facilitating advancements in the food science and technology sector.