Lipid oxidation studied by electron paramagnetic resonance (EPR)
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Lipid oxidation studied by electron paramagnetic resonance (EPR). / Andersen, Mogens L.
Omega-3 Delivery Systems: Production, Physical Characterization and Oxidative Stability. Academic Press, 2021. s. 201-213.Publikation: Bidrag til bog/antologi/rapport › Bidrag til bog/antologi › Forskning › fagfællebedømt
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TY - CHAP
T1 - Lipid oxidation studied by electron paramagnetic resonance (EPR)
AU - Andersen, Mogens L.
N1 - Publisher Copyright: © 2021 Elsevier Inc. All rights reserved.
PY - 2021
Y1 - 2021
N2 - Electron paramagnetic resonance spectroscopy (EPR) allows the detection and quantification of radicals generated during autoxidation of lipids. Even though the high reactivities and very low steady-state concentrations limit the direct detection of lipid-derived radicals to near rigid systems at low temperatures, then the spin trapping technique makes it possible to study radical formation in most types of lipid-containing foods. The addition of radicals to spin traps generates EPR detectable spin adducts that can allow assessment of shelf life and evaluation of possible antioxidants. By analysis of EPR spectra of spin probes, which are stable radicals, the availability of dioxygen at a microscopic scale can be evaluated as well as the location of important components such as antioxidants in emulsion systems.
AB - Electron paramagnetic resonance spectroscopy (EPR) allows the detection and quantification of radicals generated during autoxidation of lipids. Even though the high reactivities and very low steady-state concentrations limit the direct detection of lipid-derived radicals to near rigid systems at low temperatures, then the spin trapping technique makes it possible to study radical formation in most types of lipid-containing foods. The addition of radicals to spin traps generates EPR detectable spin adducts that can allow assessment of shelf life and evaluation of possible antioxidants. By analysis of EPR spectra of spin probes, which are stable radicals, the availability of dioxygen at a microscopic scale can be evaluated as well as the location of important components such as antioxidants in emulsion systems.
KW - EPR spectroscopy
KW - Oxidation
KW - Radicals
KW - Spin probes
KW - Spin trapping
U2 - 10.1016/B978-0-12-821391-9.00004-1
DO - 10.1016/B978-0-12-821391-9.00004-1
M3 - Book chapter
AN - SCOPUS:85127157321
SP - 201
EP - 213
BT - Omega-3 Delivery Systems
PB - Academic Press
ER -
ID: 307004134