Methionine sulfone-containing orbitides, good indicators to evaluate oxidation process of flaxseed oil

文献类型： 外文期刊

第一作者： Zou, Xian-Guo

作者： Zou, Xian-Guo;Hu, Jiang-Ning;Zhu, Xue-Mei;Deng, Ze-Yuan;Zou, Xian-Guo;Hu, Jiang-Ning;Zhu, Xue-Mei;Deng, Ze-Yuan;Wang, Yu-Fu

作者机构：

关键词： Orbitides;Cyclolinopeptides;Nonpolar carbonyls;Oxidation indicator;Total oxidation value;HPLC-MS

期刊名称：FOOD CHEMISTRY （ 影响因子：7.514； 五年影响因子：7.516 ）

ISSN： 0308-8146

年卷期： 2018 年 250 卷

页码：

收录情况： SCI

摘要： This study aimed to explore the possibility of using methionine sulfone (Msn)-containing orbitides as indicators to evaluate the oxidation process of flaxseed oils. Results showed that after 4 days' heating, oxidation values slightly increased (p > .05) with significant decrease in methionine (Met)-containing peptides (p < .05) instead of.-tocopherol (p > .05). However, as oxidation time continues increasing, oxidation values significantly increased (p < .05) with significant reduction of.-tocopherol (p < .05). It demonstrated that Met-containing peptides were more readily oxidized compared with.-tocopherol and showed certain antioxidant activity. Besides, high logarithmic correlations were found between oxidation values and Msn-containing orbitides (0.94-1.00), such as between total carbonyl compounds and orbitide [1-8-NaC],[1-MetO(2)]-CLE (64.95 lnx - 52.14, R-2 = 0.99, Dingya23 oil). Therefore, in comparison with common oxidation indices, Msn-containing orbitides may be better indicators for evaluating the oxidation process of flaxseed oil with superior separation efficiency, specific information and high stability.

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