Liha töötlemine
One of the most common methods is the emulsification, solubility, and water-holding
TBARS that consists of the spectrophotomet- capacity (Ooizumi and Xiong 2004). The
ric determination of malondialdehyde (MDA) main modifications of amino acids by oxida-
Detection of Chemical Hazards 475
tion, especially proline, arginine, lysine, 2008). Both semialdehydes are formed as the
methionine, and cysteine residues, consist of main carbonyl products from metal-catalyzed
the formation of carbonyl derivatives (Giulivi oxidized proteins. This method uses liquid
et al. 2003). The formation of carbonyl com- chromatography-electrospray ionization
pounds can be used as a kind of measurement mass spectrometry and was recently applied
of protein damage by oxygen radicals under to a survey of protein oxidation in different
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