荧光探针在食品智能包装中的应用

Application of Fluorescent Probes in Food Intelligent Packaging

通过监测食品包装内一些理化指标(O_2、H_2S、CO_2、酸碱度、碳水化合物)判定食品的新鲜程度,是新时代下智能包装领域的一大研究热点及难点。荧光探针法因具有专一性强、灵敏度高、响应速度快、可控性强等特点,被广泛应用于识别某些理化指标,具备判断食品新鲜度的功能。首先对荧光探针的荧光机理进行简介,然后对近十多年来O_2荧光探针、H_2S荧光探针、碳水化合物荧光探针以及其他类型的荧光探针的研究现状进行了归纳总结,最后对荧光探针在食品智能包装中的应用前景进行了展望。

Determining the freshness of food by detecting some physical and chemical indexes including O_2,H_2 S,CO_2,pH and carbohydratesis a hot and difficult research spot in food intelligent packaging in the new era.Owing to its strong specificity,high sensitivity,rapid response and strong controllability,the fluorescence probes,were widely applied to identify some physical and chemical indexes,so with the function of judging the freshness of food.The mechanisms of the fluorescent probes were introduced firstly.Then the research progress of oxygen fluorescence probes,hydrogen sulfide fluorescence probes,carbon dioxide fluorescence probes and other types of fluorescence probes over the past decade were reviewed.Furthermore,the application prospect of fluorescent probes in food intelligent packaging was prospected.