ACTA AGRICULTURAE BOREALI-SINICA ›› 2012, Vol. 27 ›› Issue (5): 191-197. doi: 10.3969/j.issn.1000-7091.2012.05.036

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Study on the Apoptosis and Effect Facts of Duck Skeletal Muscle during Postmortem Ageing

WANG Dao-ying1,2, HUANG Wei1,2, ZHANG Mu-han1, LIU Fang1, ZHU Yong-zhi1, XU Xing-lian2, XU Wei-min1, CAO Jian-min1   

  1. 1. Institute of Agricultural Products Processing Jiangsu Academy of Agricultural Sciences Nanjing 210014 China;

    2. Key Laboratory of Meat Processing and Quality Control Ministry of Education Nanjing Agriculture University Key Laboratory of Food Processing and Quality Control Ministry of Agriculture Nanjing Agriculture University Nanjing 210095 China
  • Received:2012-07-17 Published:2012-10-28

Abstract: This experiment investigate whether the duck skeletal muscle cells apoptosis occurs and what factors affect it and provide new experimental evidence for further use of the mechanism of apoptosis mature mechanism to clarify the water in poultry meat.Analysis detected after slaughter,the duck breast and thigh meat of Bcl-2,Bax in Caspase-3 protein expression and mitochondrial cytochrome-C content,TUNEL detect changes of the number of positive-apoptotic nuclei as well as post-mortem ATP metabolism and pH changes situation.The results showed that the duck skeletal muscle after slaughter Bax/Bcl-2 protein ratio were significantly raised(P0.05),mitochondrial cytochrome-C content was significantly lower(P0.05),Caspase-3 zymogen,respectively split into the activation of about 20 kDa fragment,0.5-8 h skeletal muscle after slaughter,the number of positive apoptotic nuclei were significantly increased(P0.05);content of ATP and pH value in the postmortem 0.5-8 h showed a significant downward trend(P0.05).The results of Bax pro-apoptotic protein expression levels was dominant,the quick emancipation of mitochondrial cytochrome-C,the activation of apoptosis key pro-Caspase-3 and the sharp increase of the number of positive apoptotic nuclei showed that there was a process of apoptosis postmortem in the duck skeletal muscle cells evidently.Consumption of ATP and the pH value reduction provide a necessary environment within the cell apoptosis and,the degree of apoptosis may reach a peak around 8 h postmortem in duck skeletal muscle.

Key words: Bcl-2 Bax, Cytochrome-C, Caspase-3 TUNEL, ATP pH Apoptosis, Duck Postmortem conditioning

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Cite this article

WANG Dao-ying, HUANG Wei, ZHANG Mu-han, LIU Fang, ZHU Yong-zhi, XU Xing-lian, XU Wei-min, CAO Jian-min. Study on the Apoptosis and Effect Facts of Duck Skeletal Muscle during Postmortem Ageing[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2012, 27(5): 191-197. doi: 10.3969/j.issn.1000-7091.2012.05.036.

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