Journal ArticleDOI
Effects of pre‐ and postmortem glycolysis on poultry tenderness
A. W. Khan,Ryo Nakamura +1 more
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TLDR
The results indicate that a pH value above 6.2 just after slaughtering, and an ultimate pH near 5.7, are desirable for maintaining quality of poultry breast meat, and that these pH values are maintained by minimum premortem and maximum postmortem glycolysis.Abstract:
SUMMARY
To study the effects of glycolysis on tenderness of poultry breast meat, premortem and postmortem glycolysis in muscle tissue was controlled either by epinephrine administration at suitable intervals of time before slaughtering or by allowing the birds to struggle freely just before and during slaughtering. Premortem glycolysis, occurring as a result of death struggle or epinephrine administration 1-2 hr before slaughtering, lowered the pH of the meat at the time of death and caused toughness. Minimization of postmortem glycolysis by epinephrine administration more than 5 hr before slaughtering increased the ultimate pH of meat and the tenderness. The results indicate that a pH value above 6.2 just after slaughtering, and an ultimate pH near 5.7, are desirable for maintaining quality of poultry breast meat, and that these pH values are maintained by minimum premortem and maximum postmortem glycolysis.read more
Citations
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Journal ArticleDOI
Colour measurements for evaluating the pale soft exudative (PSE) occurrence in turkey meat
TL;DR: The CIELAB colour measuring system was used to measure the colour of turkey breast muscle from young toms, ranging from very light to very dark in colour as mentioned in this paper, and the results indicated that a type of pale soft and exudative (PSE) condition may exist in turkey breast meat from young Toms and such meat can be identified by a fast and non-destructive colour evaluation.
Journal ArticleDOI
Transport stress in broilers: I. Blood metabolism, glycolytic potential, and meat quality
TL;DR: It is suggested that transport induced the release of plasma CORT and glycopenia, which affected the contractive status of muscle fibers by changing their area and density, and enhanced glycolysis and even lipolysis, which might improve broiler meat quality.
Journal ArticleDOI
The Influence of Transportation on Turkey Meat Quality
Casey M. Owens,A. R. Sams +1 more
TL;DR: It is suggested that transporting turkeys immediately before processing does not induce PSE meat and may actually improve water-holding properties.
Book ChapterDOI
Influence of Ante- and Postmortem Treatments Upon Muscle Composition and Meat Quality
A. Asghar,A. M. Pearson +1 more
TL;DR: It is discussed that the physical, chemical, and histological properties of muscle change markedly during the first 24 hours following slaughter.
Journal ArticleDOI
The relationship of razor blade shear, allo-kramer shear, warner-bratzler shear and sensory tests to changes in tenderness of broiler breast fillets
TL;DR: This paper evaluated the ability of the razor blade (RB) shearing method and various other instrumental shearing methods as a means for developing models to predict tenderness in broiler breast fillets.
References
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Book ChapterDOI
Etiological status and associated studies of pale, soft, exudative porcine musculature.
TL;DR: This chapter briefly reviews the biochemistry and physiology of rigor mortis in regard to the development of pale, soft, exudative ( PSE) muscle.
Journal ArticleDOI
Determination of glycogen with the anthrone reagent
TL;DR: The method combines the advantages of the classical alkaline extraction technique and the rapid colorimetric anthrone procedure and the possibility of interference from glycoprotein is removed by the perchloric acid treatment.
Journal ArticleDOI
Factors determining the time course of rigor mortis.
E. C. Bate‐Smith,J. R. Bendall +1 more
Journal ArticleDOI
BIOCHEMISTRY OF CHICKEN MUSCLE AS RELATED TO RIGOR MORTIS AND TENDERIZATIONa
Donald De Fremery,M. F. Pool +1 more
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Optimal Conditions for the Enzymatic Determination of L-Lactic Acid
TL;DR: When lactic acid concentrations in plasma, liver, and heart muscle were determined by both enzymatic and chemical methods, identical results were obtained.
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