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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Preliminary study on the characterization of Longissimus lumborum dark cutting meat in Angus x Nellore crossbreed cattle using NMR-based metabolomics

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Brandao Consolo, Nara Regina [1, 2] ; Rosa, Alessandra Fernandes [2] ; Garibaldi Simon Barbosa, Luis Carlos [2] ; Maclean, Paul Haydon [1] ; Higuera-Padilla, Angel [3] ; Colnago, Luiz Alberto [3] ; Lencioni Titto, Evaldo Antonio [2]
Total Authors: 7
[1] AgResearch, Grasslands Res Ctr, Tennent Dr, 11 Dairy Farm Rd, Palmerston North 4442 - New Zealand
[2] Univ Sao Paulo, Fac Zootecnia & Engn Alimentos FZEA USP, Duque Caxias Norte 225, BR-13635900 Pirassununga, SP - Brazil
[3] EMBRAPA Instrumentacao, XV Novembro 1452, BR-13560970 Sao Carlos, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Source: MEAT SCIENCE; v. 172, FEB 2021.
Web of Science Citations: 0

The aim of this preliminary study was to evaluate meat quality properties, muscle metabolite profile and metabolic pathways associated with the occurrence of dark cutting meat in Angus x Nellore crossbreed cattle. After 14 days' ageing, dark cutting meat presented a higher pH, lower cooking loss and colour parameters, and greater tenderness compared with normal meat. Dark cutting meat had a higher ATP level and lower concentrations of glucose-6-phosphate, lactate, glucose, serine, threonine, creatine phosphate, inosine, leucine, methionine, succinate and glucose-1-phosphate compared to normal meat. In dark cutting samples, the ultimate pH was positively correlated with carnitine and negatively correlated with glucose-6-phosphate. However, in normal meat, the ultimate pH presented a positive correlation with arginine, leucine, methionine, proline, threonine, tyrosine and valine. Pathway analysis showed that differentiation of the groups was linked to energetic pathways such as starch and sucrose metabolism, the pentose phosphate pathway, amino sugar, nucleotide sugar metabolism, and glycolysis or gluconeogenesis. In conclusion, the occurrence of dark cutting meat has a notable impact on meat quality attributes and concentrations of post-mortem glycolytic metabolites, appears to be correlated with mitochondrial activity and affects energetic metabolic pathways. (AU)

FAPESP's process: 19/13656-8 - Development and application of nuclear magnetic resonance in products and agricultural processes
Grantee:Luiz Alberto Colnago
Support type: Regular Research Grants
FAPESP's process: 18/09800-3 - Metabolomics characterization of sheep and cattle meat
Grantee:Nara Regina Brandão Cônsolo
Support type: Scholarships abroad - Research Internship - Post-doctor