Detection of Virgin Olive Oil Adulteration Using Low Field Unilateral NMR

نویسندگان

  • Zheng Xu
  • Robert H. Morris
  • Martin Bencsik
  • Michael I. Newton
چکیده

The detection of adulteration in edible oils is a concern in the food industry, especially for the higher priced virgin olive oils. This article presents a low field unilateral nuclear magnetic resonance (NMR) method for the detection of the adulteration of virgin olive oil that can be performed through sealed bottles providing a non-destructive screening technique. Adulterations of an extra virgin olive oil with different percentages of sunflower oil and red palm oil were measured with a commercial unilateral instrument, the profile NMR-Mouse. The NMR signal was processed using a 2-dimensional Inverse Laplace transformation to analyze the transverse relaxation and self-diffusion behaviors of different oils. The obtained results demonstrated the feasibility of detecting adulterations of olive oil with percentages of at least 10% of sunflower and red palm oils.

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عنوان ژورنال:

دوره 14  شماره 

صفحات  -

تاریخ انتشار 2014