2D DIGE proteomic analysis of early post mortem muscle exudate highlights the importance of the stress response for improved water-holding capacity of fresh pork meat

PROTEOMICS ◽  
2013 ◽  
Vol 13 (9) ◽  
pp. 1528-1544 ◽  
Author(s):  
Alessio Di Luca ◽  
Giuliano Elia ◽  
Ruth Hamill ◽  
Anne Maria Mullen
2005 ◽  
Vol 10 (1) ◽  
Author(s):  
R.G. KÖHLER ◽  
R.J.S. FREITAS

Existem vários fatores estressantes que podem afetar a qualidade da carne e também há falta de informação sobre a quantidade de horas mínimas e máximas ideais de descanso no frigorífico para a reposição do esgotamento físico dos animais após o transporte. O presente trabalho teve como objetivo estudar o efeito da redução do tempo de permanência na pocilga do frigorífico sobre a qualidade da carne suína, avaliando-se as seguintes características: pH; capacidade de retenção de água (WHC). A redução de descanso de 9 horas para 3 horas de descanso no frigorífico não alteraram de modo significativo a qualidade da carne suína nas variáveis pH 45 minutos, pH 24 horas pós abate e na capacidade de retenção de água (WHC) pelos métodos Drip Loss e papel de filtro prensado de GRAU e HAMM, mas com a redução do tempo de descanso no frigorífico, pôdese obter outros ganhos (redução do estresse, escoriações de pele, hematomas, fraturas e outros) e em qualidade da carne. Pork meat quality after two times of lairage in slaugther Abstract There are several stressing factors that can affect the meat quality, and also a lack of information on the minimum and maximum ideal lairage time in the slaugther for the replacement of animal physical exhaustion after transportation. The reduction of 9 to 3 hours of lairage in the preslaugther did not significantly alter the pork meat quality in the variables pH 45 min, pH 24 h postslaugther, water-holding capacity (WHC) for the methods Drip Loss and filter paper press of GRAU & HAMM. However, with the reduction lairage time in the slaugther, other gains could be obtained (reduction of stress, skin excoriations, hematomas, fractures and others) as well as increase in meat quality.


LWT ◽  
2003 ◽  
Vol 36 (1) ◽  
pp. 125-133 ◽  
Author(s):  
Gunn Berit Olsson ◽  
Ragnar L. Olsen ◽  
Ragni Ofstad

LWT ◽  
2005 ◽  
Vol 38 (5) ◽  
pp. 437-445 ◽  
Author(s):  
Elisabeth Micklander ◽  
Hanne Christine Bertram ◽  
Henrik Marnø ◽  
Lone Søvad Bak ◽  
Henrik Jørgen Andersen ◽  
...  

PLoS ONE ◽  
2016 ◽  
Vol 11 (3) ◽  
pp. e0150605 ◽  
Author(s):  
Alessio Di Luca ◽  
Ruth M. Hamill ◽  
Anne Maria Mullen ◽  
Nikolai Slavov ◽  
Giuliano Elia

2014 ◽  
Vol 14 (3) ◽  
pp. 737-747 ◽  
Author(s):  
Marta Chmiel ◽  
Mirosław Słowiñski ◽  
Sławomir Janakowski

AbstractThe aim of this study was to evaluate selected quality attributes of pork longissimus lumborum (LL) muscle characterized by Rfn and PSe occurrence considering its microstructure. The material used in the research was 100 pork meat samples of normal quality (RFN – red, firm, normal, non-exudative) and 100 pork meat samples with PSe defect. The digital images of microstructure of selected meat samples were captured and some quality attributes, including ph level, drip loss, electrical conductivity (ec), water holding capacity (Whc) and ciel*a*b* parameters, were determined. Based on the findings obtained it was concluded that PSE meat (pH24h≤5.5) was characterized by higher degradation of muscle fibre structure when compared with the normal meat (RFN). The differences in the microstructure of PSE and RFN meat influenced the colour, electrical conductivity, drip loss and WHC of the meat. The PSE meat was characterized by a signifi- cantly lighter color and significantly higher electrical conductivity, along with more intense drip loss and worsened water holding capacity in comparison with Rfn meat.


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