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Shockwave processing of beef brisket in conjunction with sous vide cooking: Effects on protein structural characteristics and muscle microstructure

Abstract : We studied the effect of shockwave processing and subsequent sous vide cooking on meat proteins (molecular size and thermal stability) and muscle structures (molecular, microand ultrastructure). Beef briskets were subjected to shockwave (11 kJ/pulse) and were sous vide-cooked at 60 degrees C for 12 h. Shockwave processing alone decreased the enthalpy and thermal denaturation temperature of the connective tissue proteins (second peak in the DSC thermogram, p < 0.05) compared to the control raw samples, while the protein gel electrophoresis profile remained unaffected. It led to disorganisation of the sarcomere structure and also modified the protein secondary structure. More severe muscle fibre coagulation and denaturation were observed in the shockwavetreated cooked meat compared to the cooked control. The results show that shockwave processing, with and without sous vide cooking, promotes structural changes in meat, and thus may have the potential to improve the organoleptic quality of the tough meat cuts.
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https://hal.inrae.fr/hal-03171584
Contributor : Sabine Rossi <>
Submitted on : Wednesday, March 17, 2021 - 8:47:20 AM
Last modification on : Wednesday, March 17, 2021 - 8:47:21 AM

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Feng Ming Chian, Lovedeep Kaur, Thierry Astruc, Annie Vénien, Anna-Sophie Stübler, et al.. Shockwave processing of beef brisket in conjunction with sous vide cooking: Effects on protein structural characteristics and muscle microstructure. Food Chemistry, Elsevier, 2021, 343, pp.128500. ⟨10.1016/j.foodchem.2020.128500⟩. ⟨hal-03171584⟩

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