Responsive small-molecule luminescence probes for sulfite/bisulfite detection in food samples

• DOI: 10.1016/j.trac.2021.116199
• Publication Date: 2021-01-23T07:22:01Z
• Authors: Huan Feng; Jianping Liu; Ali Qaitoon; Qingtao Meng; Yasmina Sultanbawa; Zhiqiang Zhang; Zhi Ping Xu; Run Zhang
• Keywords: Analytical chemistry; 01 natural sciences; 0104 chemical sciences

Abstract Sulfite (SO32−) and bisulfite (HSO3−) have been widely used in food preservation to avoid oxidation and microbe growth and inhibit enzymatic reactions. Extensive intake of SO32−/HSO3− will cause allergic reactions and even tissue damages in some individuals. Therefore, developing responsive small-molecule probes for rapid, effective, and quantitative detection of SO32−/HSO3− in various foods has attracted increasing attentions in recent years. Based on different response mechanisms, such as nucleophilic addition with the electron deficit “C C” bonds, ketone or aldehyde groups, and inhibition of C N isomerization, a number of responsive small-molecule probes have been developed for food analysis. This review focuses on the progress in the development of responsive small-molecule probes for SO32−/HSO3− analysis in food samples. Their chemical structures, response mechanisms with SO32−/HSO3−, and performance for SO32−/HSO3− analysis in food samples are summarized and discussed. The future research directions for developing novel probes for SO32−/HSO3− analysis in food samples are proposed.