The study of protein biomarkers to understand the biochemical processes underlying beef color development in young bulls. (December 2017)

• Record Type: Journal Article
• Authors: Gagaoua, Mohammed; Terlouw, E.M. Claudia; Picard, Brigitte
• Is Part Of: Meat science. Volume 134(2017)
• Page Start: 18
• Page End: 27
• Publication Date: 2017-12
• Subjects: Beef -- Young bulls -- Meat color -- Biomarkers -- Biological mechanisms -- Regression; Meat -- Periodicals; Meat industry and trade -- Periodicals; Viande -- Périodiques; Viande -- Industrie -- Périodiques; Meat; Meat industry and trade; Periodicals; 641.36
• DOI: 10.1016/j.meatsci.2017.07.014
• Languages: English
• ISSNs: 0309-1740

Abstract

Abstract: This study investigates relationships between 21 biomarkers and meat color traits of Longissimus thoracis muscles of young Aberdeen Angus and Limousin bulls. The relationships found allowed to propose metabolic processes underlying meat color. The color coordinates were related with several biomarkers. The relationships were in some cases breed-dependent and the variability explained in the regression models varied between 31 and 56%. The correlations between biomarkers and color parameters were sometimes opposite between breeds. The PCA using the 21 biomarkers and the instrumental color coordinates showed that these variables discriminated efficiently between the two studied breeds. Results are coherent with earlier studies on other beef breeds showing that several proteins belonging to different but partly related biological pathways involved in muscle contraction, metabolism, heat stress and apoptosis are related to beef color. The results suggest that in future, biomarkers may be used to classify meat cuts sampled early post - mortem according to their forthcoming color. Highlights: Protein biomarkers for meat tenderness are also related with meat color. The correlations between biomarkers and meat color are breed and color parameter-dependent. Color of different muscles showed consistent relationships involving similar biological pathways. The biomarkers discriminated efficiently between the two breeds.