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Study of dielectric permittivity and fatty acid composition for fats and oil in wide frequency spectroscopy measurement at 0.5 – 50 GHz


Citation

Amat Sairin, Masyitah and Ahmad Nizar, Nina Naquiah and Abd Aziz, Samsuzana and Rokhani, Fakhrul Zaman (2016) Study of dielectric permittivity and fatty acid composition for fats and oil in wide frequency spectroscopy measurement at 0.5 – 50 GHz. In: 2016 10th International Conference on Sensing Technology (ICST), 11-13 Nov. 2016, Nanjing, China. .

Abstract / Synopsis

The study focused on application of spectral permittivity technique subjected to wide frequency range of from microwaves to millimeter waves (i.e. 0.5-50 GHz) at the temperature of 60°C to understand the relationship of dielectric permittivity and fatty acid composition in fats and oil. Results showed that the dielectric constant of 4 animal fats and 2 vegetable oil exhibited same frequency dependence. The dielectric constant of fats and oil increases with an increase in the degree of unsaturation in vegetable oil at 7.4, 13.4, 18.3, 23.3, and 46.0 GHz. The dielectric constant decreases with the increase of composition of palmitic and oleic acid in animal fat at 13.4 and 18.3 GHz respectively. The understanding obtained in this work could be useful towards distinguishing fats and oils especially lard using rapid permittivity spectroscopy based on accurate chemical composition, suitable for Halal product analysis.


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Additional Metadata

Item Type: Conference or Workshop Item (Paper)
Divisions: Faculty of Engineering
Halal Products Research Institute
DOI Number: 10.1109/ICSensT.2016.7796242
Publisher: IEEE
Keywords: Animal fats; Fatty acid methyl ester (FAME); Spectral permittivity; Vegetable oil
Depositing User: Nabilah Mustapa
Date Deposited: 30 Jun 2017 17:55
Last Modified: 30 Jun 2017 17:55
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1109/ICSensT.2016.7796242
URI: http://psasir.upm.edu.my/id/eprint/55941
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