Formation of toxic aldehydes in cod liver oil after ultraviolet irradiation |
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Authors: | Fatemeh Niyati-Shirkhodaee Takayuki Shibamoto |
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Affiliation: | (1) Department of Environmental Toxicology, University of California, 95616 Davis, California |
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Abstract: | Formaldehyde, acrolein, malonaldehyde (MA), acetaldehyde and propanal produced from cod liver oil upon ultraviolet irradiation
(λmax=300 nm) were derivatized into nitrogenor sulfur-containing compounds and then analyzed by capillary gas chromatography with
a nitrogen-phosphorus detector or a flame photometric detector. Acrolein and MA were formed at levels of 10.9±3.06 and 190.2±38.4
nmol/mg of fish oil, respectively. Maximum levels of formaldehyde, acetaldehyde and propanal formed were 7.0±0.90, 49.1±4.5
and 35.8±4.0 nmol/mg of oil, respectively. Formation of propanal in large quantities corresponded to the high content of ɛ-3
fatty acids in cod liver oil. |
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Keywords: | Acetaldehyde acrolein cod liver oil formaldehyde malonaldehyde photooxidation |
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