Literature DB >> 28527364

Effect of extended aging on calpain-1 and -2 activity in beef longissimus lumborum and semimembranosus muscles.

M J Colle1, M E Doumit2.   

Abstract

Our objectives were to (Exp. 1) determine the effect of postmortem aging (2, 3, 4, 14, 28, and 42days) on calpain-1 and -2 activity in beef longissimus lumborum (LL) and semimembranosus (SM) steaks and (Exp. 2) determine the effect of postmortem aging for two extended periods (63 and 84days) on calpain-2 activity of beef SM steaks. Calpain-1 was not active in either muscle following 14days of aging. Native calpain-2 activity decreased (P<0.001) with longer aging periods for both the LL and SM in Exp. 1 and for the SM in Exp. 2. Autolyzed calpain-2 activity increased (P<0.001) with longer aging for the LL and SM in Exp. 1 and for the SM in Exp. 2. Our results indicate that both calpain-1 and calpain-2 may contribute to the postmortem improvement of beef tenderness, with calpain-1 being responsible for the tenderness improvement early postmortem and calpain-2 responsible for additional tenderization during extended aging.
Copyright © 2017 Elsevier Ltd. All rights reserved.

Entities:  

Keywords:  Aging; Beef; Calpain

Mesh：

Substances：

Year:  2017        PMID： 28527364     DOI： 10.1016/j.meatsci.2017.05.014

Source DB:  PubMed          Journal:  Meat Sci        ISSN： 0309-1740            Impact factor:   5.209


  8 in total

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7.  Feeding strategies and ageing time alter calpain system proteins activities and meat quality of Braford steers.

Authors:  María Sumampa Coria; Dario Pighin; Gabriela Grigioni; Gustavo Adolfo Palma
Journal:  Anim Biosci       Date:  2021-10-21

8.  Sustained Effects of Muscle Calpain System Genotypes on Tenderness Phenotypes of South African Beef Bulls during Ageing up to 20 Days.

Authors:  Annie Basson; Phillip E Strydom; Esté van Marle-Köster; Edward C Webb; Lorinda Frylinck
Journal:  Animals (Basel)       Date:  2022-03-09       Impact factor: 2.752
  8 in total

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