Protein phosphorylation profile of Atlantic cod (Gadus morhua) in response to pre-slaughter pumping stress and postmortem time
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Protein phosphorylation profile of Atlantic cod (Gadus morhua) in response to pre-slaughter pumping stress and postmortem time. / Zhang, Longteng; Li, Qian; Sørensen, Jonas Steenholdt; Luo, Yongkang; Lametsch, René.
In: Food Chemistry, Vol. 402, 134234, 2023.Research output: Contribution to journal › Journal article › peer-review
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TY - JOUR
T1 - Protein phosphorylation profile of Atlantic cod (Gadus morhua) in response to pre-slaughter pumping stress and postmortem time
AU - Zhang, Longteng
AU - Li, Qian
AU - Sørensen, Jonas Steenholdt
AU - Luo, Yongkang
AU - Lametsch, René
N1 - Publisher Copyright: © 2022 Elsevier Ltd
PY - 2023
Y1 - 2023
N2 - This study aimed to evaluate the effect of pumping stress (pumping and pumping-resting) and postmortem time (before and after rigor mortis) on phosphorylation profiles of myofibrillar protein (MP) and sarcoplasmic protein (SP) of Atlantic cod (Gadus morhua) fillets. The result showed that MP had higher global phosphorylation levels than SP regardless of stress condition and postmortem time. The pumping process resulted in significant changes in phosphorylation of structural proteins including myosin heavy and light chains. Pumping also affected the phosphorylation status of heat shock proteins and metabolic enzymes involved in the glycolytic pathways, indicating the possible role of phosphorylation in regulating energy hemostasis of fish under stressful conditions. The pumping-induced phosphorylation changes mainly occurred before rigor mortis, and postmortem time affected the phosphorylation status to a less extent. This work contributes to a deeper understanding on protein phosphorylation affected by pre-slaughter stress and postmortem time of fish.
AB - This study aimed to evaluate the effect of pumping stress (pumping and pumping-resting) and postmortem time (before and after rigor mortis) on phosphorylation profiles of myofibrillar protein (MP) and sarcoplasmic protein (SP) of Atlantic cod (Gadus morhua) fillets. The result showed that MP had higher global phosphorylation levels than SP regardless of stress condition and postmortem time. The pumping process resulted in significant changes in phosphorylation of structural proteins including myosin heavy and light chains. Pumping also affected the phosphorylation status of heat shock proteins and metabolic enzymes involved in the glycolytic pathways, indicating the possible role of phosphorylation in regulating energy hemostasis of fish under stressful conditions. The pumping-induced phosphorylation changes mainly occurred before rigor mortis, and postmortem time affected the phosphorylation status to a less extent. This work contributes to a deeper understanding on protein phosphorylation affected by pre-slaughter stress and postmortem time of fish.
KW - Myofibrillar proteins
KW - Postmortem time
KW - Protein phosphorylation
KW - Pumping
KW - Sarcoplasmic proteins
U2 - 10.1016/j.foodchem.2022.134234
DO - 10.1016/j.foodchem.2022.134234
M3 - Journal article
C2 - 36137388
AN - SCOPUS:85138210460
VL - 402
JO - Food Chemistry
JF - Food Chemistry
SN - 0308-8146
M1 - 134234
ER -
ID: 327927754