期刊
SENSORS
卷 14, 期 2, 页码 2028-2035出版社
MDPI AG
DOI: 10.3390/s140202028
关键词
adulteration; olive oil; unilateral NMR Mouse; transverse relaxation; diffusion
资金
- National Natural Science Foundation of China [51107150, 51377182]
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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