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Data fusion and multivariate analysis for food authenticity analysis.

Yunhe Hong1, Nicholas Birse1, Brian Quinn1

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|June 8, 2023
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Summary

Combining two mass spectrometry methods with data analysis accurately identifies salmon origin and production. This dual-platform approach achieves 100% accuracy, surpassing single-method limitations for food authenticity.

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Area of Science:

  • Analytical Chemistry
  • Food Science
  • Chemometrics

Background:

  • Accurate determination of food origin and production methods is crucial for consumer trust and regulatory compliance.
  • Single analytical platforms often struggle to provide comprehensive data for complex food matrices like salmon.
  • Developing robust methods for food provenance is essential in combating fraud and ensuring quality.

Purpose of the Study:

  • To develop and validate a novel data fusion approach for classifying salmon origin and production methods.
  • To assess the efficacy of combining Rapid Evaporative Ionization Mass Spectrometry (REIMS) and Inductively Coupled Plasma Mass Spectrometry (ICP-MS) data.
  • To identify robust chemical markers indicative of salmon provenance.

Main Methods:

  • A mid-level data fusion strategy was employed, integrating data from REIMS and ICP-MS.
  • Multivariate analysis techniques were applied to the fused datasets.
  • A study cohort of 522 salmon samples from five regions and two production types was analyzed.

Main Results:

  • The dual-platform data fusion achieved 100% cross-validation classification accuracy for salmon origin and production.
  • All 17 test samples were correctly identified by origin, a feat not achievable with single-platform methods.
  • Eighteen lipid markers and nine elemental markers were identified as robust indicators of salmon provenance.

Conclusions:

  • The integrated data fusion and multivariate analysis strategy significantly enhances the accuracy of identifying salmon geographical origin and production methods.
  • This innovative approach demonstrates high potential for application in broader food authenticity and traceability challenges.
  • Dual-platform mass spectrometry offers a powerful solution for complex food authentication problems.