Liha töötlemine
anaerobic glycolysis is the primary source of thick and thin filaments, thus reducing avail-
ATP production. As a result, lactic acid able space for water to reside (Offer and
builds up in the tissue, leading to a reduction Trinick 1983). It has been shown that as the
in pH of the meat. Once the pH has reached pH of porcine muscle is reduced from physi-
the isoelectric point (pI) of the major pro- ological values to 5.2–5.6 (near the isoelec-
teins, especially myosin (pI = 5.3), the net tric point of myosin), the distance between
charge of the protein is zero, meaning the the thick filaments declines an average of
numbers of positive and negative charges 2.5 nm (Diesbourg et al. 1988). This decline
on the proteins are essentially equal. These in filament spacing may force sarcoplasmic
positive and negative groups within the fluid from between the myofilaments to the
annaabi.ee 
