A rapid and visible colorimetric fluorescent probe for benzenethiol flavor detection

Food Chem. 2019 Jul 15:286:322-328. doi: 10.1016/j.foodchem.2019.02.033. Epub 2019 Feb 14.

Abstract

Benzenethiols are a class of flavoring ingredients used in the food, pharmaceutical, cosmetics and chemical industries. A rapid and visible colorimetric fluorescent probe was developed for the detection of benzenethiol flavors. It provides rapid quantitative detection of benzenethiols at low levels, down to a limit of 10 nM. Test paper containing the probe changes color according to benzenethiol concentration (from colorless to pink, visible with the naked eye). The probe was also successfully used to test benzenethiol concentrations in real food samples. This study demonstrates that this novel probe can be employed as a benzenethiol testing tool.

Keywords: Benzenethiol flavors; Fluorescent probe; Visible colorimetric.

MeSH terms

  • Colorimetry / methods*
  • Flavoring Agents / analysis*
  • Fluorescent Dyes / chemistry*
  • Food Analysis
  • Phenols / analysis*
  • Sulfhydryl Compounds / analysis*

Substances

  • Flavoring Agents
  • Fluorescent Dyes
  • Phenols
  • Sulfhydryl Compounds
  • thiophenol