Article (Scientific journals)
The effect of sarcoplasmic protein phosphorylation on glycolysis in postmortem ovine muscle
Chen, Li; Li, Z.; Li, X. et al.
2018In International Journal of Food Science and Technology
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Keywords :
Glycolysis; Glycolysis rate; Glycolytic enzyme; Protein phosphorylation; Enzyme activity; Muscle; Pathology; Food science and technology; Glycogen phosphorylase; International journals; Phosphofructokinase; Sarcoplasmic protein; Phosphorylation
Abstract :
[en] Protein phosphorylation is a key modulator in glycolysis metabolism and regulates the activity of glycometabolic enzymes. The phosphorylation levels of sarcoplasmic proteins were investigated in relationship to the glycolysis rate in postmortem ovine muscle in the present study. The global phosphorylation levels of sarcoplasmic proteins increased early postmortem and then decreased afterwards in postmortem ovine muscle. Protein bands of different phosphorylation levels were identified as glycometabolism-related enzymes. The phosphorylation levels of Glycogen phosphorylase and Pyruvate kinase maybe one possible reason for the different glycolytic rates at 0.5 h postmortem. The glycolytic rate attributes were negatively correlated with four bands which were probably phosphofructokinase, enolase and adenylate kinase isoenzyme. In summary, the phosphorylation of sarcoplasmic proteins is related to muscle pH decline early postmortem, influencing the meat rigour mortis and quality development. International Journal of Food Science and Technology © 2018 Institute of Food Science and Technology.
Disciplines :
Animal production & animal husbandry
Author, co-author :
Chen, Li ;  Université de Liège - ULiège > Doct. sc. agro. & ingé. biol. (Paysage)
Li, Z.;  Institute of Food Science and Technology Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Products Processing Ministry of Agriculture Beijing China
Li, X.
Chen, J.;  Institute of Food Science and Technology Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Products Processing Ministry of Agriculture Beijing China
Everaert, Nadia ;  Université de Liège - ULiège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Ingénierie des productions animales et nutrition
Zhang, D.;  Institute of Food Science and Technology Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Products Processing Ministry of Agriculture Beijing China
Language :
English
Title :
The effect of sarcoplasmic protein phosphorylation on glycolysis in postmortem ovine muscle
Publication date :
2018
Journal title :
International Journal of Food Science and Technology
ISSN :
0950-5423
eISSN :
1365-2621
Publisher :
Blackwell Publishing Ltd
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 08 May 2019

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