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1. Inhibition of mitochondrial calcium uniporter enhances postmortem proteolysis and tenderness in beef cattle

Author:
Dang, David S.; Buhler, Jared F.; Davis, Haden T.; Thornton, Kara J.; Scheffler, Tracy L.; Matarneh, Sulaiman K.
Source:
Meat science 2020 v.162 pp. 108039
ISSN:
0309-1740
Subject:
autolysis; beef cattle; calcium; calpastatin; homeostasis; longissimus muscle; meat tenderness; mitochondria; proteolysis; steaks; tenderizing; texture
Abstract:
... The purpose of this study was to examine the role of mitochondria in postmortem calcium homeostasis and its effect on proteolysis and tenderness. We hypothesized that mitochondria buffer cytosolic calcium levels and delay the activation of calpain-1 and subsequently the development of meat tenderness. To test this hypothesis, pre-rigor bovine longissimus thoracis et lumborum muscle samples were in ...
DOI:
10.1016/j.meatsci.2019.108039