A Rapid Fluorescence Sensor for the Direct Quantification of Rongalite in Foodstuffs.

ABSTRACT: Rongalite was reported illegally used as a food additive for bleaching purposes and improving the tenderness of foodstuffs, which may endanger public health. At present, rongalite was mostly detected by indirect methods via derivatization or determining its decomposition products. In this study, we developed a new fluorescence sensor for the direct quantification of rongalite based on the principles: (1) dopamine reacts with resorcinol and generates strong fluorophore (azamonardine); (2) rongalite could inhibit the production of fluorophores and then result in lower fluorescence intensity. Hence, the rongalite concentration was inversely proportional to fluorescence intensity of fluorophore. Several crucial reaction conditions of fluorescence sensor were further optimized, such as dopamine

SUBMITTER: Li H 

PROVIDER: S-EPMC9455777 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature