|
KMID : 0380620090410060628
|
|
Korean Journal of Food Science and Technology
2009 Volume.41 No. 6 p.628 ~ p.635
|
|
|
Comparison of Autoxidative Stability and Minor Compounds in Oils Extracted from Bran and Germ of Keumkang Wheat and Dark Northern Spring Wheat
|
|
Choi Hyun-Ki
Choe Eun-Ok
|
|
|
Abstract
|
|
|
|
Autoxidative stability of wheat bran and germ oil extracted from Keumkang wheat (WBG-K) or Dark Northern Spring wheat (WBG-DNS) at 50oC in the dark was compared by peroxide values (POV) and fatty acid composition by gas chromatography. Changes of minor compounds were monitored by HPLC. WBG-K showed significantly higher linoleic but lower oleic acid content than WBG-DNS. WBG-DNS contained more phospholipids but less tocopherols and carotenoids than WBG-K. POV of oils was increased during storage, with no significant difference in the oxidation rates between two oils. Tocopherols, carotenoids, and phospholipids in both oils were degraded during the autoxidation. Total phospholipids content showed the highest correlation with the degree of oxidation in WBG oils. The results clearly showed that both fatty acid composition and contents of tocopherols, carotenoids, and phospholipids co-affected the autoxidation of WBG oil
|
|
|
KEYWORD
|
|
|
autoxidation, wheat bran and germ oil, phospholipids
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|