Effect of salt addition on the thermal behavior of proteins of bovine meat from Argentina

Research was undertaken to investigate how the addition of sodium chloride (NaCl) and/or sodium tripolyphosphate (TPP) to sous vide cooked meat pieces produces an increase in water holding capacity (WHC). Semitendinosus muscles were injected to obtain tissue final concentrations of 0.70% NaCl, 0.25%...

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Veröffentlicht in:Meat science 2008-07, Vol.79 (3), p.549-556
Hauptverfasser: Pighin, D.G., Sancho, A.M., Gonzalez, C.B.
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container_title Meat science
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creator Pighin, D.G.
Sancho, A.M.
Gonzalez, C.B.
description Research was undertaken to investigate how the addition of sodium chloride (NaCl) and/or sodium tripolyphosphate (TPP) to sous vide cooked meat pieces produces an increase in water holding capacity (WHC). Semitendinosus muscles were injected to obtain tissue final concentrations of 0.70% NaCl, 0.25% TPP, 0.70% NaCl+0.25% TPP, and 1.20% NaCl+0.25% TPP. SDS-PAGE analysis showed increased protein solubilization in those treatments which included NaCl. Thermal analysis of whole muscles and isolated myofibrils showed the destabilizing effect of NaCl and a global stabilizing effect of TPP. Both salts together induced a destabilizing global effect, where TPP assisted NaCl in breaking the meat structure. It is suggested that the WHC increments are related to conformational changes in myofibrillar proteins and to the weakening of myofibrillar structure by the removal of myofibrillar proteins.
doi_str_mv 10.1016/j.meatsci.2007.12.011
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subjects Beef
beef cattle
beef quality
cooked foods
cooking
cooking quality
Differential scanning calorimetry
food additives
marinating
muscle protein
Myofibrillar proteins
protein degradation
sarcomeres
Sodium chloride
Sodium tripolyphosphate
sous vide
thermal stability
water holding capacity
title Effect of salt addition on the thermal behavior of proteins of bovine meat from Argentina
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