Advances in smart pH complex membranes based on anthocyanins from different extracts
Food packaging is the first impression of food.It can cause or inhibit people's appetite,and plays an extremely important role in improving the appearance and quality of food.How to better protect consumers from unknown diseases caused by spoiled and rotten food,and further improve food quality has become an important research direction.Anthocyanin is an important natural water-soluble pig-ment,which is widely found in plants.It belongs to the flavonoid family of polyphenols and has good pH sensitivity.In this paper,the re-search progresses in recent years were reviewed.Anthocyanins were extracted from different plants and used as indicators to prepare intelli-gent pH composite membranes.The color changes of composite membranes were used to monitor the freshness of meat,milk,fruits and vegetables.The source,structure and properties of anthocyanins were also discussed,which provided some ideas for researchers to explore the application potential of anthocyanin intelligent pH indicator membranes extracted from different plants in other fields.
万方数据
维普
