2.4. Pale soft exudative (PSE) and dark firm dry (DFD) meats
These two quality defects are associated with membrane modifications
and changes in the extracellular medium. They are therefore
bound to affect electrical properties. A major quality problem in pork is
preventing the production of pale soft exudative (PSE) meat whose pH
decreases rapidly, they are highly exudative, and so are unsuitable for
processing. In beef, one quality problem is dark firm dry (DFD) meat
with high pH and high susceptibility to spoiling. The difficulty in detecting
PSE meats during the development of rigor mortis arises because, as this
phenomenon occurs, parameters such as pH and temperature evolve