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Capacitive sensing system for frying oil assessment during heating


Citation

Al-Khaled, Al-Fadhl Yahya Khaled and Abd Aziz, Samsuzana and Wan Ismail, Wan Ishak and Rokhani, Fakhrul Zaman (2015) Capacitive sensing system for frying oil assessment during heating. In: 2015 IEEE International Circuits and Systems Symposium (ICSyS 2015), 2-4 Sept. 2015, Holiday Villa Beach Resort & Spa, Langkawi, Kedah. (pp. 137-141).

Abstract / Synopsis

The thermal degradation process during frying contributes to the formation of polar compounds in the oil, which in turn changes the oil quality. A capacitive sensing system utilizing interdigitated electrode design was built to assess the frying oil degradation during heating by measuring the changes on its total polar compounds (TPC). In total of 60 samples of 100 ml palm oil were heated at 180° C up to 30 hours using a laboratory oven. For each one hour increment, one sample was taken out of the oven and cooled at room temperature before analysis. The TPC of each heated sample was measured using the custom-built capacitive sensing system and using a commercialized frying oil tester, Testo 270 (InstruMartlnc, Germany). A two tailed independent sample t-test was carried out to test the agreement between both methods. The results showed that there was no significant difference in measured TPC values from both methods (p = 0.983, α = 0.05 and 95% confidence interval). Thus, the results demonstrated significant correlation between the measurements using the capacitive sensing system and the Testo 270. The custom-built capacitive sensing system has good potential for a simple and inexpensive way of monitoring frying oil degradation.


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Additional Metadata

Item Type: Conference or Workshop Item (Paper)
Divisions: Faculty of Engineering
DOI Number: https://doi.org/10.1109/CircuitsAndSystems.2015.7394081
Publisher: IEEE
Keywords: Capacitive sensing; Frying oil; Interdigitated electrode; Total polar compounds (TPC)
Depositing User: Nabilah Mustapa
Date Deposited: 03 Jul 2017 09:36
Last Modified: 03 Jul 2017 09:36
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1109/CircuitsAndSystems.2015.7394081
URI: http://psasir.upm.edu.my/id/eprint/56103
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