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NMR-based and chemometric approaches applicable to adulteration studies for assessment of the botanical origin of edible oils

  • Luciana Marçal Ravaglia
  • Ana Beatriz Coriguazi Pizzotti
  • Glaucia Braz Alcantara
Short Communication
  • 9 Downloads

Abstract

The health benefits of edible oils, especially promoted by ω3 and ω9 fatty acids, have been associated with their botanical origin. In order to investigate fatty acid profiles, we assessed Brazil nut, chia, linseed, sesame (toasted and raw), and soybean oils by 1H nuclear magnetic resonance (1H NMR) and chemometrics. PCA plots revealed important relationships between chemical composition and botanical origin for reference and commercial samples. Strong evidence of commercial Brazil nut oil adulteration was confirmed using a spiking procedure. Our findings show that NMR and chemometrics are successful tools for correlating fatty acid profile with botanical origin, which can be suitable for detecting sample adulteration.

Keywords

Fatty acids Edible oils Quality control NMR Chemometric analysis 

Notes

Acknowledgments

This work was supported by the Programa de Educação Tutorial (PET-Química/UFMS) and Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Grant Number 481507/2013-2. Luciana Marçal Ravaglia is grateful to UFMS for the support received for her doctorate course.

Supplementary material

13197_2018_3485_MOESM1_ESM.pdf (326 kb)
Supplementary material 1 (PDF 325 kb)

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Copyright information

© Association of Food Scientists & Technologists (India) 2018

Authors and Affiliations

  1. 1.Instituto de QuímicaUniversidade Federal de Mato Grosso do SulCampo GrandeBrazil

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