Research progress of anthocyanin-loaded aquatic product freshness indicator films
2025
ZHAO Zunle | LI Yun | LI Yu | SUO Jintie | ZHANG Chun
Anthocyanin-loaded freshness indicator films can intuitively reflect the freshness of aquatic products through color changes. They are pH-sensitive and have characteristics such as natural safety and antioxidant properties. Although there have been a large number of studies on them, they still face huge challenges in aspects such as color development, stability, and sensitivity. This paper mainly summarizes the research on natural anthocyanins in pH-sensitive indicator films and their application in monitoring the freshness of aquatic products. The advantages of anthocyanins as indicators are analyzed, and measures to improve the performance of anthocyanin-loaded indicator films are further discussed. The focus is on improving the stability of anthocyanins in indicator films and expanding the color range. The paper also points out the application limitations and future development trends of anthocyanin-loaded indicator films.
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