食品包装
活性包装
天然食品
食品质量
食品工业
生化工程
食品安全
食品
食品科学
生物技术
业务
环境科学
化学
工程类
生物
作者
Danfei Liu,Changfan Zhang,Yumei Pu,Siyuan Chen,Lei Liu,Zijie Cui,Yunfei Zhong
出处
期刊:Foods
[MDPI AG]
日期:2022-06-25
卷期号:11 (13): 1884-1884
被引量:22
标识
DOI:10.3390/foods11131884
摘要
Recently, due to the enhancement in consumer awareness of food safety, considerable attention has been paid to intelligent packaging that displays the quality status of food through color changes. Natural food colorants show useful functionalities (antibacterial and antioxidant activities) and obvious color changes due to their structural changes in different acid and alkali environments, which could be applied to detect these acid and alkali environments, especially in the preparation of intelligent packaging. This review introduces the latest research on the progress of pH-responsive freshness indicators based on natural food colorants and biodegradable polymers for monitoring packaged food quality. Additionally, the current methods of detecting food freshness, the preparation methods for pH-responsive freshness indicators, and their applications for detecting the freshness of perishable food are highlighted. Subsequently, this review addresses the challenges and prospects of pH-responsive freshness indicators in food packaging, to assist in promoting their commercial application.
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