title: Release of major ions during rigor mortis development in kid Longissimus dorsi muscle.
abstract: Ionic strength plays an important role in post mortem muscle changes. Its increase is due to ion release during the development of rigor mortis. Twelve alpine kids were used to study the effects of chilling and meat pH on ion release. Free ions were measured in Longissimus dorsi muscle by capillary electrophoresis after water extraction. All free ion concentrations increased after death, but there were differences between ions. Temperature was not a factor affecting ion release in contrast to ultimate pH value. Three release mechanisms are believed to coexist: a passive binding to proteins, which stops as pH decreases, an active segregation which stops as ATP disappears and the production of metabolites due to anaerobic glycolysis.
authors: Laboratoire Sciences Animales, ENSAIA, 2 av. de la Forêt de Haye, 54500 Vandoeuvre-les Nancy, France.
authors: C
authors: C
authors: Feidt
authors: J
authors: J
authors: Brun-Bellut