Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7585787 | Food Chemistry | 2018 | 38 Pages |
Abstract
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 4â¯days' heating, oxidation values slightly increased (pâ¯>â¯.05) with significant decrease in methionine (Met)-containing peptides (pâ¯<â¯.05) instead of γ-tocopherol (pâ¯>â¯.05). However, as oxidation time continues increasing, oxidation values significantly increased (pâ¯<â¯.05) with significant reduction of γ-tocopherol (pâ¯<â¯.05). It demonstrated that Met-containing peptides were more readily oxidized compared with γ-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-NαC],[1-MetO2]-CLE (64.95 lnxâ¯ââ¯52.14, R2â¯=â¯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.
Keywords
DADCyclolinopeptidesGamma-Tocopherol (PubChem CID: 92729)CLSMSNtotal saturated fatty acidsMSOp-Anisidine valueALAHPLC-MSTBARSDNPH2,4-dinitrophenylhydrazinediode array detectorflame ionization detectorPeroxide valueLinoleic acidalpha linolenic acidFIDconjugated dienesMethionine sulfoxideFAMEsfatty acid methyl estersMethionineMET
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Xian-Guo Zou, Jiang-Ning Hu, Xue-Mei Zhu, Yu-Fu Wang, Ze-Yuan Deng,