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You searched for: Publication Year 2020 Remove constraint Publication Year: 2020 Source 2020 v.162 Remove constraint Source: 2020 v.162 Subject beef cattle Remove constraint Subject: beef cattle
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1. Dietary citrus pulp and grape pomace as potential natural preservatives for extending beef shelf life

Author:
Tayengwa, Tawanda; Chikwanha, Obert C.; Gouws, Pieter; Dugan, Michael E.R.; Mutsvangwa, Timothy; Mapiye, Cletos
Source:
Meat science 2020 v.162 pp. 108029
ISSN:
0309-1740
Subject:
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
Abstract:
... 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 ...
DOI:
10.1016/j.meatsci.2019.108029

2. 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