Remedio Leandro Neodini, Parada Quinayá Carolina
Faculty of Animal Science and Food Engineering, University of São Paulo USP, Av. Duque de Caxias Norte 225, Pirassununga 13635-900, SP, Brazil.
Bioengineering and Chemical Engineering Department, Universidad de Ingenieria y Tecnologia UTEC, Jr. Medrano Silva 165, Lima 15063, Peru.
Polymers (Basel). 2024 Oct 14;16(20):2886. doi: 10.3390/polym16202886.
With the aim of meeting the growing demand for safe food, intelligent packaging has emerged, which monitors the conditions of the food and informs the consumer about its quality directly at the time of purchase. Among intelligent packaging options, colorimetric indicator films, which change color in response to changes in the food, such as the release of volatile compounds, have been widely studied. Among them, pH indicator films composed of dyes sensitive to small variations in the pH value of the food surface have received greater attention in recent years. Anthocyanins, which are natural pigments, have stood out as one of the most commonly used sources of dyes in the production of these indicator films. In this context, the present review aims to present an updated overview of research employing anthocyanins in indicator films, including their stability under different storage conditions, the influence of different polymers used in their production, and alternative techniques for maintaining stability.
为了满足对安全食品日益增长的需求，智能包装应运而生，它可以监测食品的状况，并在购买时直接向消费者告知其质量。在智能包装选项中，比色指示膜因能响应食品变化（如挥发性化合物的释放）而变色，已得到广泛研究。其中，由对食品表面pH值微小变化敏感的染料组成的pH指示膜近年来受到了更多关注。花青素作为天然色素，已成为生产这些指示膜时最常用的染料来源之一。在此背景下，本综述旨在提供使用花青素的指示膜研究的最新概况，包括它们在不同储存条件下的稳定性、生产中使用的不同聚合物的影响以及保持稳定性的替代技术。
