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Recent Advances in pH-Responsive Freshness Indicators Using Natural Food Colorants to Monitor Food Freshness
| Content Provider | MDPI |
|---|---|
| Author | Liu, Danfei Zhang, Changfan Pu, Yumei Chen, Siyuan Liu, Lei Cui, Zijie Zhong, Yunfei |
| Copyright Year | 2022 |
| Description | 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. |
| Starting Page | 1884 |
| e-ISSN | 23048158 |
| DOI | 10.3390/foods11131884 |
| Journal | Foods |
| Issue Number | 13 |
| Volume Number | 11 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2022-06-25 |
| Access Restriction | Open |
| Subject Keyword | Foods Intelligent Packaging Technology Natural Food Colorants Freshness Indicator Ph-responsive Food Quality |
| Content Type | Text |
| Resource Type | Article |
