Firdausi, K. Sofjan and Suryono, S. and Priyono, P. and Muhlisin, Zaenul (2015) A Simple Polarization for Powerful Preliminary Test of Oil Quality Level. In: The 5th International Seminar on New Paradigm and Innovation on Natural Sciences and Its Application (5th ISNPINSA) i , 7-8 Oktober 2015, Semarang.
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Abstract
In this paper, light polarization has been used to indicate level quality of various vegetable oils. A new indication of level quality used here was change of light polarization, and was measured using a simple pair of polarizer-analyzer. The result showed that the degradation of oil quality until to its date of expiration was indicated by higher change of polarization. It was proposed that the saturated fatty acid methyl stearate (C17H34O2) and unsaturated fatty acids methyl oleate (C19H36O2) in triglycerides molecules were the most fatty acids that could be responsible to the degradation of oil quality. This method apparently has been relative more powerful than standard parameters such as free fatty acid (FFA) test.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Subjects: | Q Science > Q Science (General) |
| Divisions: | Faculty of Science and Mathematics > Department of Chemistry |
| ID Code: | 62521 |
| Deposited By: | INVALID USER |
| Deposited On: | 25 May 2018 14:23 |
| Last Modified: | 25 May 2018 14:23 |
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