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Melamine contamination

Yu-Chang Tyan1, Ming-Hui Yang, Shiang-Bin Jong

  • 1Department of Medical Imaging and Radiological Sciences, Kaohsiung Medical University, 100 Shi-Chuan 1st Road, Kaohsiung, 807, Taiwan. yctyan@kmu.edu.tw

Analytical and Bioanalytical Chemistry
|August 12, 2009
PubMed

Insights

Melamine in infant formula caused severe health issues. This review covers analytical methods for detecting melamine in food, highlighting the need for faster, more sensitive techniques.

Area of Science:

  • Food Safety
  • Analytical Chemistry
  • Toxicology

Background:

  • Melamine and its metabolites (ammeline, ammelide, cyanuric acid) caused infant deaths in 2008 due to contaminated formula.
  • Melamine adulteration falsely elevates apparent protein content in food and milk.
  • Melamine and metabolites are absorbed and can precipitate in kidneys, forming crystals.

Purpose of the Study:

  • To review analytical methods for melamine detection in food.
  • To address the need for rapid and ultrasensitive screening and characterization of melamine and its derivatives.
  • To inform regulatory analysis in response to food adulteration incidents.

Main Methods:

  • Review of various analytical methods for melamine analysis in food samples.
  • Discussion of detection limits (0.05–100 ppm) and regulatory limits (US FDA: 50 ppb).
  • Exploration of mass spectrometry as a key technology for regulatory analysis.

Main Results:

  • A wide range of analytical methods exist for melamine detection.
  • Current methods have varying detection limits, with a need for improvement.
  • Mass spectrometry offers a promising alternative for derivatization-free regulatory analysis.

Conclusions:

  • Effective analytical methods are crucial for ensuring food safety and preventing melamine adulteration.
  • There is an ongoing need for developing faster and more sensitive analytical procedures.
  • Mass spectrometry technologies are advancing regulatory food analysis for melamine.

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