Liha töötlemine
myofibrillar structure and increase proteo- Traditionally, most of the research on post-
lytic susceptibility of myofibrillar proteins. mortem proteolysis and meat aging was
The high ionic strength in postmortem muscle done using classic SDS-PAGE and western
(0.3 M) was shown to be responsible for blotting techniques to document protein deg-
the solubilization of structural proteins radation in either tissue sampled from aged
(C-protein, M line protein, troponoin T, intact muscle cuts or from protein extracts
actin, tropomyosin, and α-actinin; Wu and following the in vitro digestion of isolated
Smith 1985, 1987) and changes in myofibril- myofibrils and muscle proteins. Researchers
lar ATPase activity with aging (Ouali 1992). are increasingly taking a proteomics approach
This was further supported by the fact that to understanding protein changes related to