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February 2, 2026Journal of Food Science

Nitrogen‐Doped Carbon Quantum Dots for Tannic Acid Analysis in Complex Food Matrices

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Authors

QZQingqing ZouXWXin WangSMShan Mou

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Overview

Fluorescent sensor detects tannic acid in food matrices, suggesting a reliable method for monitoring food safety.

Key Points

  • The aim is to develop a sensitive method for detecting tannic acid in complex food matrices using nitrogen-doped carbon quantum dots.
  • Synthesis of nitrogen-doped carbon quantum dots via one-pot hydrothermal reaction
  • Characterization using TEM, AFM, XPS, FT-IR, and XRD
  • Construction of a fluorescent sensor for tannic acid detection
  • Practical testing of the sensor in beer, red wine, and apple juice
  • Fluorescent sensor shows linear detection range of 0.500-250 µM and detection limit of 0.15 µM
  • Sensor demonstrates recoveries from 101% to 116% in various food matrices
  • High correlation with HPLC-DAD results confirms method accuracy

Cite This Study

Zou et al. (2026) studied this question.

synapsesocial.com/papers/6980ffa4c1c9540dea8123f0https://doi.org/10.1111/1750-3841.70792
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