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J Agric Food Chem. 2017 Apr 5;65(13):2883-2887. doi: 10.1021/acs.jafc.7b00353. Epub 2017 Mar 24.

Rapidly Responsive and Highly Selective Fluorescent Probe for Bisulfite Detection in Food.

Author information

1
Beijing Innovation Centre of Food Nutrition and Human Health, Beijing Key Laboratory of Flavour Chemistry, Beijing Technology and Business University , No. 11 Fucheng Road, Haidian District, Beijing 100048, People's Republic of China.

Abstract

The new fluorescent probe 4-hydroxy-3-((2E,4E)-5-phenylpenta-2,4-dienoyl)-2H-chromen-2-one (probe 1) was designed and synthesized for selective detection of sulfite. The fluorescence intensity of the probe was decreased only in the presence of HSO3-; all other anions assessed resulted in an increased fluorescence response. Hence, probe 1 acts as a highly selective sensor for HSO3-. This sulfite sensitivity can also be readily monitored visually, as once treated with sulfite the solution shows a marked color change from yellow to colorless. Moreover, probe 1 can be conveniently used as a signal tool to determine the HSO3- levels in various sugar samples.

KEYWORDS:

Michael-type addition; bisulfite; fluorescent probe

PMID:
28300403
DOI:
10.1021/acs.jafc.7b00353
[Indexed for MEDLINE]

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