Department of Biochemistry, Faculty of Sciences, King Abdulaziz University, Jeddah 21499, Saudi Arabia.
Experimental Biochemistry Unit, King Fahad Medical Research Center, King Abdulaziz University, Jeddah 21499, Saudi Arabia.
Molecules. 2021 Mar 15;26(6):1630. doi: 10.3390/molecules26061630.
This study aimed to investigate the effectiveness of 2,4,4'-trihydroxychalcone as a natural antioxidant on the oxidation of sunflower oil during an 88-day storage period and to compare its strength with the synthetic antioxidant butylated hydroxytoluene (BHT). Seven groups of the sunflower oil samples were prepared: pure oil (control), oil treated with different concentrations (100, 500, and 1000 ppm) of 2,4,4'-trihydroxychalcone, and oil treated with different concentrations (100, 500, and 1000 ppm) of BHT. Specific parameters, namely, the peroxide value (PV), acid value (AV), p-anisidine value (p-AnV), thiobarbituric acid reactive substance (TBARS) value and total oxidation (TOTOX) value were used to assess the extent of the deterioration of the oil by estimating the primary and secondary oxidation products. The results showed that 2,4,4'-trihydroxychalcone effectively decreased the production of the primary and secondary oxidation products of sunflower oil during storage, as indicated by reductions in the PVs, AVs, p-AnVs, TBARS values and TOTOX values of the sunflower oil. When compared to BHT, 2,4,4'-trihydroxychalcone showed either a similar or stronger effect in inhibiting the primary and secondary oxidation products. These findings suggest that, 2,4,4'-trihydroxychalcone is a suitable natural alternative to synthetic antioxidants to improve the oxidative stability of sunflower oil.
本研究旨在探讨 2,4,4'-三羟基查耳酮作为一种天然抗氧化剂在 88 天储存期内对葵花籽油氧化的有效性，并将其与合成抗氧化剂丁基羟基甲苯（BHT）进行比较。制备了七组葵花籽油样品：纯油（对照）、用不同浓度（100、500 和 1000 ppm）2,4,4'-三羟基查耳酮处理的油，以及用不同浓度（100、500 和 1000 ppm）BHT 处理的油。通过评估初级和次级氧化产物来估计油的劣化程度，使用过氧化值（PV）、酸值（AV）、对茴香胺值（p-AnV）、硫代巴比妥酸反应物（TBARS）值和总氧化值（TOTOX）值等特定参数。结果表明，2,4,4'-三羟基查耳酮有效减少了葵花籽油在储存过程中初级和次级氧化产物的产生，表现为 PVs、AVs、p-AnVs、TBARS 值和 TOTOX 值的降低。与 BHT 相比，2,4,4'-三羟基查耳酮在抑制初级和次级氧化产物方面表现出相似或更强的效果。这些发现表明，2,4,4'-三羟基查耳酮是一种替代合成抗氧化剂的合适天然物质，可以提高葵花籽油的氧化稳定性。
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