ABSTRACT
In the view of characterizing the animal tissues with respect to their physical properties, the AA. have investigated on the behaviour of the electrical responses of bovine diaphragmatic muscle. In particolar the resistance and the impedance (at a fixed frequency of 20 Hz, sinusoidal wave) have been checked in samples from the 4th up to the 148th hour after slaughter. The results of these experiments show that, during the maturation of the meat, there is a decrease of the values of the resistance and of the capacitive reactance. On the basis of the data acquired, the only hypothesis explaining the course of the research could be that the electrical properties of the meat are greatly influenced in a very relevant way by capacitive structures and in lower degree by a pure resistive medium.
Subject(s)
Muscles/physiology , Postmortem Changes , Animals , Cattle , Diaphragm/physiology , Electric Conductivity , Electrophysiology , KineticsABSTRACT
The Authors continuing a program of research on the characterization of physical properties of muscular tissues of Mammalia after slaughtering, have performed a new series of observations on the electrical conductance of femoral biceps of swine. Using two groups of specimen (one cut along the axis of the muscular fibers, the other at right angle of them), the AA. checked different values of resistance and of impedance, particularly during the first hours. On the contrary in the final stage of the research the data are quite similar in both the groups of samples. In the comment has taken into account the hypothesis that, on the basis of changes in the tissue structures, electrochemical processes could explain the results.