Liha töötlemine
decreases with time postmortem (Underwood increasingly being investigated as potential
et al. 2008). In this study, pro-caspase 3 was factors influencing the conversion of muscle
not activated during postmortem storage and to meat and meat quality. In living muscle
caspase 3 activity was not correlated with tissue, HSP such as alpha β-crystallin,
Warner-Bratzler shear force in beef longis- HSP20, and HSP27 have a homeostatic func-
simus. The data from one study using muscle tion in which they stabilize unfolded pro-
from callipyge and normal lambs indicated teins, help refold denatured proteins, and
that caspase 3/7 and caspase 9 activities prevent protein aggregation (Liu and
decreased between 1 and 21 days postmor- Steinacker 2001). Due to their abilities to
tem but did not directly support or reject the protect cellular proteins from denaturation