Liha töötlemine
1997; Carlin It does have the ability to combine with other
et al. 2006). biomolecules that also have physiological
Oxidation does occur early in postmortem importance.
meat, and it does influence proteolysis (Harris One example of this is its ability to
et al. 2001; Rowe et al. 2004b). Rowe et al. combine with superoxide to form the highly
(2004) showed that there was a significant oxidizing molecule peroxynitrite. Proteins
increase in proteolysis of troponin-T in steaks are important biological targets of peroxyni-
from alpha-tocopherol-fed steers after 2 days trite, particularly proteins containing cyste-
of postmortem aging compared with steers ine, motioning, and/or tryptophan (Radi et al.
fed a conventional feedlot diet. This indicates 2000). Several enzymes are known to be
that very low levels of oxidation can influ- inactivated by peroxynitrite. Among these is