Xiang-Bo Zeng, Fa-Wen Yin, Guan-Hua Zhao, Chao Guo, De-Yang Li, Hui-Lin Liu, Lei Qin, Fereidoon Shahidi, Da-Yong Zhou
Antarctic krill oil (AKO) is reddish-orange in color but undergoes changes during storage. To investigate the color deterioration and potential mechanisms involved, the changes in color, endogenous components (astaxanthin, fatty acids, and phospholipids), and reaction products (aldehydes, α-dicarbonyl compounds, and pyrroles) of AKO upon storage were determined. Although the visual color of AKO tended to darken upon storage, the colorimetric analysis and ultraviolet-visible spectrum analysis both indicated a fading in red and yellow due to the oxidative degradation of astaxanthin...
January 30, 2024: Food Chemistry