Effects of extraction solvents on antarctic krill oil quality characteristics and some insights into the oxidation stability of antarctic krill oil

• DOI: 10.1016/j.lwt.2024.116429
• Publication Date: 2024-07-03T00:04:51Z
• Authors: Liu Lin; Zhenhai Cao; Xinyi Tao; Mingyu Liu; Mingyu Yin; Xuewei Wan; Fengqiujie Wang; Xichang Wang; Junjian Miao; Ningping Tao
• Keywords: Lysophosphatidylethanolamine; Antarctic krill

The effects of 6 solvent combinations (Folch, acetone/ethanol [1:1, v/v], ethanol [95%, n-hexane/ethyl acetate [7:3, n-hexane/ethanol [10:1, and isopropanol alcohol v/v] with different polarities on the quality characteristics Antarctic krill oil (AKO) extracted from were investigated in this study. relationship between endogenous active substances oxidative stability was also explored. There a significant positive correlation polarity AKO yield (r = 0.91, p < 0.05), total tocopherols 0.84, 0.05) weak astaxanthin 0.53). In addition, eicosapentaenoic acid (EPA) docosahexaenoic (DHA) mostly located phosphatidylcholines, lysophosphatidylcholine, phosphatidylethanolamine lysophosphatidylethanolamine. (95%, v/v) had highest efficiency glycerophospholipids (34.39%), EPA (20.83%) DHA (9.61%). For liposolubility trace substances, most efficiently Folch (283.49 μg/g) (1:1, v/v, 264.58 μg/g), whereas 114.29 μg/g). Astaxanthin, tocopherol phosphatidylcholines closely related to AKO. Astaxanthin showed (p ABTS· scavenging capacity, dose-effect reducing power.