Utilization of Bioelectrical Impedance to Predict Intramuscular Fat and Physicochemical Traits of the Beef <i>Longissimus Thoracis et Lumborum</i> Muscle
The bioelectrical impedance analysis (BIA) is a non-destructive technique that has been successfully used to assess the body and carcass composition of farm species. This study aimed to predict intramuscular fat (IMF) and physicochemical traits in the longissimus thoracis et lumborum muscle (LM) of...
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| Format: | Article |
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MDPI AG
2020-06-01
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| Series: | Foods |
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| Online Access: | https://www.mdpi.com/2304-8158/9/6/836 |
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| author | João Afonso Cristina Guedes Virgínia Santos Raul Morais José Silva Alfredo Teixeira Severiano Silva |
| author_facet | João Afonso Cristina Guedes Virgínia Santos Raul Morais José Silva Alfredo Teixeira Severiano Silva |
| author_sort | João Afonso |
| collection | DOAJ |
| description | The bioelectrical impedance analysis (BIA) is a non-destructive technique that has been successfully used to assess the body and carcass composition of farm species. This study aimed to predict intramuscular fat (IMF) and physicochemical traits in the longissimus thoracis et lumborum muscle (LM) of beef, using BIA. These traits were evaluated in LM samples of 52 crossbred heifer carcasses. The BIA was performed in LM, using a 50 Hz frequency high precision impedance converter system. A correlation analysis of the studied variables was performed. Then a stepwise with a k-folds cross validation procedure was used to modelling the prediction of IMF and physicochemical traits from BIA parameters (24.5% ≤ CV ≤ 47.3%). Wide variation was found for IMF and BIA parameters. In general, correlations of BIA parameters with IMF and physicochemical traits were moderate to high and were similar for all BIA parameters (−0.50 ≤ r ≤ 0.50 only for total pigments, a* and pH48). It was possible to predict IMF and physicochemical traits from BIA. The best fit explained 79.3% of the variation in IMF, while for physicochemical traits the best fits were for sarcomere length and shear force (64.4% and 60.5%, respectively). The results confirmed the potential of BIA for objective measurement of meat quality. |
| first_indexed | 2024-03-10T18:53:32Z |
| format | Article |
| id | doaj.art-a9f1799950374f5da3beda63f92b25e5 |
| institution | Directory Open Access Journal |
| issn | 2304-8158 |
| language | English |
| last_indexed | 2024-03-10T18:53:32Z |
| publishDate | 2020-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Foods |
| spelling | doaj.art-a9f1799950374f5da3beda63f92b25e52023-11-20T04:57:50ZengMDPI AGFoods2304-81582020-06-019683610.3390/foods9060836Utilization of Bioelectrical Impedance to Predict Intramuscular Fat and Physicochemical Traits of the Beef <i>Longissimus Thoracis et Lumborum</i> MuscleJoão Afonso0Cristina Guedes1Virgínia Santos2Raul Morais3José Silva4Alfredo Teixeira5Severiano Silva6Faculdade de Medicina Veterinária, ULisboa, Avenida da Universidade Técnica, 1300-477 Lisboa, PortugalCentro de Ciência Animal e Veterinária, Universidade de Trás-os-Montes e Alto Douro, 5001-801 Vila Real, PortugalCentro de Ciência Animal e Veterinária, Universidade de Trás-os-Montes e Alto Douro, 5001-801 Vila Real, PortugalINESC TEC-INESC Technology and Science and Universidade de Trás-os-Montes e Alto Douro, 5001-801 Vila Real, PortugalCentro de Ciência Animal e Veterinária, Universidade de Trás-os-Montes e Alto Douro, 5001-801 Vila Real, PortugalCIMO, Instituto Politécnico de Bragança, 5300-253 Bragança, PortugalCentro de Ciência Animal e Veterinária, Universidade de Trás-os-Montes e Alto Douro, 5001-801 Vila Real, PortugalThe bioelectrical impedance analysis (BIA) is a non-destructive technique that has been successfully used to assess the body and carcass composition of farm species. This study aimed to predict intramuscular fat (IMF) and physicochemical traits in the longissimus thoracis et lumborum muscle (LM) of beef, using BIA. These traits were evaluated in LM samples of 52 crossbred heifer carcasses. The BIA was performed in LM, using a 50 Hz frequency high precision impedance converter system. A correlation analysis of the studied variables was performed. Then a stepwise with a k-folds cross validation procedure was used to modelling the prediction of IMF and physicochemical traits from BIA parameters (24.5% ≤ CV ≤ 47.3%). Wide variation was found for IMF and BIA parameters. In general, correlations of BIA parameters with IMF and physicochemical traits were moderate to high and were similar for all BIA parameters (−0.50 ≤ r ≤ 0.50 only for total pigments, a* and pH48). It was possible to predict IMF and physicochemical traits from BIA. The best fit explained 79.3% of the variation in IMF, while for physicochemical traits the best fits were for sarcomere length and shear force (64.4% and 60.5%, respectively). The results confirmed the potential of BIA for objective measurement of meat quality.https://www.mdpi.com/2304-8158/9/6/836bioelectrical impedance analysismeat qualitybeef |
| spellingShingle | João Afonso Cristina Guedes Virgínia Santos Raul Morais José Silva Alfredo Teixeira Severiano Silva Utilization of Bioelectrical Impedance to Predict Intramuscular Fat and Physicochemical Traits of the Beef <i>Longissimus Thoracis et Lumborum</i> Muscle Foods bioelectrical impedance analysis meat quality beef |
| title | Utilization of Bioelectrical Impedance to Predict Intramuscular Fat and Physicochemical Traits of the Beef <i>Longissimus Thoracis et Lumborum</i> Muscle |
| title_full | Utilization of Bioelectrical Impedance to Predict Intramuscular Fat and Physicochemical Traits of the Beef <i>Longissimus Thoracis et Lumborum</i> Muscle |
| title_fullStr | Utilization of Bioelectrical Impedance to Predict Intramuscular Fat and Physicochemical Traits of the Beef <i>Longissimus Thoracis et Lumborum</i> Muscle |
| title_full_unstemmed | Utilization of Bioelectrical Impedance to Predict Intramuscular Fat and Physicochemical Traits of the Beef <i>Longissimus Thoracis et Lumborum</i> Muscle |
| title_short | Utilization of Bioelectrical Impedance to Predict Intramuscular Fat and Physicochemical Traits of the Beef <i>Longissimus Thoracis et Lumborum</i> Muscle |
| title_sort | utilization of bioelectrical impedance to predict intramuscular fat and physicochemical traits of the beef i longissimus thoracis et lumborum i muscle |
| topic | bioelectrical impedance analysis meat quality beef |
| url | https://www.mdpi.com/2304-8158/9/6/836 |
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