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- Tayengwa, Tawanda; Chikwanha, Obert C.; Gouws, Pieter; Dugan, Michael E.R.; Mutsvangwa, Timothy; Mapiye, Cletos
- Meat science 2020 v.162 pp. 108029
- Angus; antioxidant activity; beef; beef cattle; biopreservatives; body weight; cattle finishing; citrus pulp; coliform bacteria; diet; grape pomace; lipids; longissimus muscle; microbial load; oxidation; packaging; shelf life; slaughter; steers; thiobarbituric acid-reactive substances
- ... The shelf-life of beef was compared from 7-months old Angus steers (281 ± 15.4 kg initial body weight) fed 150 g/kg DM dried citrus pulp (DCP) or grape pomace (DGP) for 90 days. The antioxidant activity, bacterial load, and lipid and protein oxidation were evaluated on the longissimus lumborum subjected to air-permeable packaging at days 1, 3, 5, 7 and 9 post-slaughter. Beef antioxidant activity w ...
- Dang, David S.; Buhler, Jared F.; Davis, Haden T.; Thornton, Kara J.; Scheffler, Tracy L.; Matarneh, Sulaiman K.
- Meat science 2020 v.162 pp. 108039
- autolysis; beef cattle; calcium; calpastatin; homeostasis; longissimus muscle; meat tenderness; mitochondria; proteolysis; steaks; tenderizing; texture
- ... 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 ...