Volume 22, Issue 159 (2025)
FSCT 2025, 22(159): 1-26 |
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Tavakoli J, Razmkhah N, Ranjbar M. Improving the oxidative stability of sunflower oil by using the oil from the Baneh skin in very small amounts. FSCT 2025; 22 (159) :1-26
URL: http://fsct.modares.ac.ir/article-7-69757-en.html
URL: http://fsct.modares.ac.ir/article-7-69757-en.html
1- Jahrom university , ja_tavakoli@yahoo.com
2- jahrom university
3- Jahrom University of Medical Sciences
2- jahrom university
3- Jahrom University of Medical Sciences
Abstract: (160 Views)
In the present study, the effect of different amounts of Baneh skin oil (0.05% to 0.5%) on the oxidative stability of refined sunflower oil during 8 hours of thermal process at 170 °C was investigated, which was 100 ppm of synthetic antioxidant TBHQ. used for comparison. Evaluating the results of various oxidative stability tests (peroxide value, anisidine value, totox value, Conjugated diene value and acid value) showed that the use of Baneh skin oil improved the oxidative stability of sunflower oil. The best conditions of oxidative stability were observed in sunflower oil containing 0.05% of Baneh skin oil, followed by the oil sample containing 0.1% of Baneh skin oil, both of which had a superior antioxidant effect than TBHQ. In order to better interpret the results of oxidative stability tests, the changes of tocopherol and polyphenolic compounds as two indicator antioxidant compounds were investigated during the thermal process. The results showed that there is no relationship between the changes of these compounds and oxidative stability tests. The sample containing TBHQ had the greatest protective effect on antioxidant compounds, which due to the creation of a peroxidative state caused by the increase of antioxidants, it decreased the oxidative stability of sunflower oil. Also, the investigation of changes in antioxidant activity during the thermal process with the help of two DPPH radical scavenging and Rancimet tests also showed that the sunflower oil sample containing 0.05% of Baneh skin oil had the best conditions, which was consistent with the results of oxidative stability tests. The results of the present research are very important because the oil of the Baneh skin oil was not pure at all compared to TBHQ.
Article Type: Original Research |
Subject:
Antioxidants
Received: 2023/06/12 | Accepted: 2023/09/4 | Published: 2025/04/21
Received: 2023/06/12 | Accepted: 2023/09/4 | Published: 2025/04/21
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