Recent advances in the fabrication, characterization and application of starch-based materials for active food packaging: hydrogels and aerogels

Di Zhao, Xinyi Zhang, Yingying Zhang, Enbo Xu, Shengkun Yan, Huaide Xu and Mei Li
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Abstract

With the increasing awareness of the harmful effects of plastics on the environment, the demand for biodegradable packaging materials is growing. Over the last decade, starch-based colloidal materials including hydrogels and aerogels have attracted widespread attention owing to their abundant supply, complete biodegradability and unique properties. This review aimed to provide an overview of the fabrication methods of starch-based hydrogels and aerogels, summarize the effects of internal and external factors on the structural and physicochemical properties of starch-based hydrogels and aerogels, and focus on the evaluation of their application in active food packaging. Hydrogels are sensitive to environmental changes, giving them unique advantages in smart packaging applications. In addition, aerogels have a distinctive place in the delivery and release of active substances based on large surface areas and high porosity. Starch-based hydrogels and aerogels will provide great potential in the application of food packaging.

Abstract Image

用于活性食品包装的淀粉基材料:水凝胶和气凝胶的制造、表征和应用方面的最新进展
随着人们越来越意识到塑料对环境的有害影响,对可生物降解包装材料的需求也在不断增长。在过去十年中,淀粉基胶体材料(包括水凝胶和气凝胶)因其丰富的供应、完全的生物可降解性和独特的性能而受到广泛关注。本综述旨在概述淀粉基水凝胶和气凝胶的制备方法,总结内外因素对淀粉基水凝胶和气凝胶结构和理化性质的影响,并重点评估其在活性食品包装中的应用。水凝胶对环境变化非常敏感,因此在智能包装应用中具有独特的优势。此外,气凝胶具有大表面积和高孔隙率,在输送和释放活性物质方面具有独特的优势。淀粉基水凝胶和气凝胶将为食品包装应用提供巨大潜力。
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