"bined" - 1 õppematerjal

Liha töötlemine

A 20S debate in the literature (Prates 2002; Goll et latent form is part of the 26S proteasome al. 2003; Geesink and Veiseth 2009), but the (Attaix et al. 1998, 2001) and can be acti- prevailing belief is that μ-calpain is the vated by mild denaturing treatments essential and predominant enzyme responsi- (Yamamoto et al. 2009) such as heat, chemi- ble for postmortem proteolysis and that com- cals, or high pressure. At least five multipep- bined m- and μ-calpain activity may be tidase activities (Mykles and Harie 1995) responsible for up to 85% of postmortem have been described: trypsin-like, chymo- meat tenderization (Geesink et al. 2000; trypsin-like, branched-chain amino acid-pre- Geesink et al. 2006) ferring, small neutral amino acid-preferring, and peptidylglutamyl peptide hydrolase