Methionine sulfone-containing orbitides, good indicators to evaluate oxidation process of flaxseed oil.
Food Chem
; 250: 204-212, 2018 Jun 01.
Article
en En
| MEDLINE
| ID: mdl-29412912
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¯-â¯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.
Palabras clave
Cyclolinopeptide B (PubChem CID: 10581956); Cyclolinopeptide C (PubChem CID: 100953614); Cyclolinopeptide E (PubChem CID: 100953616); Cyclolinopeptide J (PubChem CID: 102449637); Cyclolinopeptide K (PubChem CID: 102449638); Cyclolinopeptides; Gamma-tocopherol (PubChem CID: 92729); HPLC-MS; Nonpolar carbonyls; Orbitides; Oxidation indicator; Total oxidation value
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Aceite de Linaza
/
Lino
/
Metionina
Idioma:
En
Revista:
Food Chem
Año:
2018
Tipo del documento:
Article
País de afiliación:
China