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Identification of milk from different animal and plant sources by desorption electrospray ionisation high-resolution mass spectrometry (DESI-MS)

Food Science and Technology

Identification of milk from different animal and plant sources by desorption electrospray ionisation high-resolution mass spectrometry (DESI-MS)

Y. Hong, N. Birse, et al.

This groundbreaking study by Yunhe Hong and colleagues reveals how desorption electrospray ionization mass spectrometry (DESI-MS) can distinguish between cow, goat, camel, soy, and oat milk with remarkable accuracy. With a 100% cross-validation success rate and an impressive sensitivity to detect milk adulteration, this research presents an innovative, eco-friendly solution for milk fraud control.

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Playback language: English
Abstract
This study used desorption electrospray ionization mass spectrometry (DESI-MS) to analyze and detect and classify biomarkers in five different animal and plant sources of milk. Differences in spectral features were observed between cow, goat, camel, soy, and oat milk. Chemometric modeling (linear discriminate analysis, LDA) classified the mass spectra data with 100% cross-validation accuracy and high sensitivity to adulteration (0.1–5% v/v). DESI-MS offers a rapid, efficient, and environmentally friendly approach for milk fraud control, requiring no complex sample cleanup.
Publisher
npj Science of Food
Published On
Feb 11, 2022
Authors
Yunhe Hong, Nicholas Birse, Brian Quinn, Holly Montgomery, Di Wu, Gonçalo Rosas da Silva, Saskia M. van Ruth, Christopher T. Elliott
Tags
DESI-MS
milk adulteration
biomarkers
spectral analysis
chemometric modeling
detection

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