Comparative analysis of vegetable oils by 1H NMR in low and high magnetic fields

Kupriyanova G., Smirnov M., Mershiev I., Maraşlı A., OKAY C., Mozzhukhin G., ...More

Journal of Food Composition and Analysis, vol.126, 2024 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 126
  • Publication Date: 2024
  • Doi Number: 10.1016/j.jfca.2023.105877
  • Journal Name: Journal of Food Composition and Analysis
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Analytical Abstracts, BIOSIS, Biotechnology Research Abstracts, CAB Abstracts, Food Science & Technology Abstracts, Veterinary Science Database
  • Keywords: 1H NMR relaxometry, Adulteration detection, High-resolution 1H NMR, Inverse Laplace transformation (ILT), Olive oils, Quality control, Relaxation-time correlation plots, Soybean oils
  • Marmara University Affiliated: Yes

Abstract

High-resolution 1H NMR, high-field 1H NMR relaxometry, and low-field (<0.5 T) NMR relaxometry have been applied to study different types of olive and soybean oils. It has been shown that the use of spectral and relaxation information in high-field NMR is an effective tool for the detection of oil adulteration and identification of food oils, including oils with close content. We have also shown that low-field NMR relaxation measurements can be applied for the discrimination between various food oils in the case of a limited group of samples. This work has demonstrated the possibilities of the different types of pulse NMR experimental methods for the analysis of vegetable oils.