Comparison of homemade TD-NMR device and commercial devices for detection of oil adulteration

The analysis of edible oils, which have an important place in human health, is very significant. One of the most widely used edible oil is olive oil, which unfortunately is very frequently adulterated by adding a different, cheaper oil to reduce its cost. Therefore, a useful and economical method or...

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Bibliographic Details
Published in:European physical journal plus 2023-05, Vol.138 (5), p.374, Article 374
Main Authors: Maraşlı, Ayşe, Okay, Cengiz, Karataş, Özgül, Mozzhukhin, Georgy, Rameev, Bulat
Format: Article
Language:English
Subjects:
Applied and Technical Physics
Atomic
Chromatography
Complex Systems
Condensed Matter Physics
Control systems
Control systems design
Edible oils
Finite element analysis
Food safety
Fourier transforms
Machine learning
Magnetic fields
Magnets
Mathematical and Computational Physics
Methods
Molecular
NMR
Nuclear magnetic resonance
Nuclear safety
Oils & fats
Olive oil
Optical and Plasma Physics
Physics
Physics and Astronomy
Quality control
Radio frequency
Regular Article
Scientific imaging
Sunflower oil
Theoretical
Vegetable oils
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Summary:The analysis of edible oils, which have an important place in human health, is very significant. One of the most widely used edible oil is olive oil, which unfortunately is very frequently adulterated by adding a different, cheaper oil to reduce its cost. Therefore, a useful and economical method or device is needed to detect counterfeiting and adulteration of oils. In this study, a low-cost, easy-to-use, lightweight, and practical time-domain nuclear magnetic resonance (TD-NMR) device was developed for quality control and food safety applications, including testing edible oils. For this purpose, a measurement system, consisting of an O-shaped magnet with NdFeB permanent disc magnets, a radio frequency (RF) detection probe and a temperature stabilization/control system, was designed. Using this homemade device, the spin–lattice ( T 1 ) and spin–spin ( T 2 ) relaxation times of seven different olive oils were measured. The received results were compared with those obtained by two different commercial low-field NMR (LF-NMR) devices. It was established a good agreement between the experimental results obtained on the homemade system and the commercial LF-NMR devices. Detection of various grades of olive oil, as well as oil adulteration, was demonstrated for a set of different olive oils and a mixture of olive and sunflower oils using the developed homemade TD-NMR device.
ISSN:2190-5444
2190-5444
DOI:10.1140/epjp/s13360-023-03980-9