期刊
FOOD RESEARCH INTERNATIONAL
卷 42, 期 1, 页码 85-90出版社
ELSEVIER
DOI: 10.1016/j.foodres.2008.09.004
关键词
Lipoxygenase; Fishy odor; Hemoglobin; Lipid oxidation
The effect of lipoxygenase (LOX) and hemoglobin on the kinetics of lipid oxidation and off-odor formation was compared, using a model system of silver carp (Hypophthalmichthys molitrix) mince. The major LOX in silver carp muscle was the 12-isozyme. Compared to hemoglobin, the LOX Caused faster lipid oxidation in the initial phase but had lower lipid hydroperoxides value (POV) and less thiobarbituric acid reactive substance (TBARS) in the end. The LOX was affiliated with strong fishy odor, while hemoglobin resulted in severe oxidized oil odor. It is likely that the 2,4-heptadienal (E,E) contributes to fishy odor, while the hexanal and nonanal are responsible for oxidated oil odor. (C) 2008 Elsevier Ltd. All rights reserved.
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