<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>The impact of processes related to meat aging on physico-chemical characteristics and biologically active compound content remain in the minority. Thus, the aim of the study was to analyze the physico-chemical traits (pH, meat color, expressed juice, moisture content, protein, fat, total collagen, and fatty acid ) and carnosine, taurine, and L-carnitine content for fresh meat and vacuum-packaged meat aged for 7 and 14 days at temperature of 2°C, from the <italic>longissimus lumborum</italic> (LL) and <italic>gluteus medius</italic> (GM) muscles. This was carried out using 66 Polish Merino heavy lambs. In both muscles, the L* parameter decreased in aged meat, however, the differences with respect to fresh meat were not statistically confirmed. In the <italic>gluteus medius</italic> muscle, a higher (P&lt;0.05) redness value (a*) and lower yellowness (b*) were recorded in meat after aging. A lower (P&lt;0.05) expressed juice value was found in both LL and GM after 7 days of aging. An increase (P&lt;0.05) in protein and fat content in both muscle, and collagen content in LL was observed in aging meat. There was no difference in fatty acid groups or C18:2 c9, t11 content between the GM and LL muscles, or fresh and aging meat. A higher TBARS (Thiobarbituric acid reactive substances) content (P&lt;0.05) was recorded in meat after aging for both GM and LL. The meat aging process increased (P&lt;0.05) the carnitine and taurine content, while the carnosine content decreased. Apart from carnosine, the aging process did not significantly reduce the content of bioactive ingredients, which are important in the human diet. This process also did not negatively affect the physicochemical characteristics determining consumers’ evaluation of the meat.</p>
</abstract>

The impact of processes related to meat aging on physico-chemical characteristics and biologically active compound content remain in the minority. Thus, the aim of the study was to analyze the physico-chemical traits (pH, meat color, expressed juice, moisture content, protein, fat, total collagen, and fatty acid ) and carnosine, taurine, and L-carnitine content for fresh meat and vacuum-packaged meat aged for 7 and 14 days at temperature of 2°C, from the longissimus lumborum (LL) and gluteus medius (GM) muscles. This was carried out using 66 Polish Merino heavy lambs. In both muscles, the L* parameter decreased in aged meat, however, the differences with respect to fresh meat were not statistically confirmed. In the gluteus medius muscle, a higher (P<0.05) redness value (a*) and lower yellowness (b*) were recorded in meat after aging. A lower (P<0.05) expressed juice value was found in both LL and GM after 7 days of aging. An increase (P<0.05) in protein and fat content in both muscle, and collagen content in LL was observed in aging meat. There was no difference in fatty acid groups or C18:2 c9, t11 content between the GM and LL muscles, or fresh and aging meat. A higher TBARS (Thiobarbituric acid reactive substances) content (P<0.05) was recorded in meat after aging for both GM and LL. The meat aging process increased (P<0.05) the carnitine and taurine content, while the carnosine content decreased. Apart from carnosine, the aging process did not significantly reduce the content of bioactive ingredients, which are important in the human diet. This process also did not negatively affect the physicochemical characteristics determining consumers’ evaluation of the meat.

Analysis of the physico-chemical characteristics and content of selected bioactive components in lamb meat, depending on the type of muscle and vacum-aging time

Department of Animal Breeding and Production

Annals of Animal Science

This work is licensed under the Creative Commons Attribution 4.0 International License.

The impact of processes related to meat aging on physico-chemical characteristics and biologically active compound content remain in the minority. Thus, the...

Analysis of the physico-chemical characteristics and content of selected bioactive components in lamb meat, depending on the type of muscle and vacum-aging time

Publicado en línea: 19 jul 2024

Páginas: -

Recibido: 12 jul 2023

Aceptado: 08 may 2024

DOI: https://doi.org/10.2478/aoas-2024-0062

Palabras clave
lambs, muscle type, aging time, CLA, carnosine L-carnitine, taurine

© 2024 Aurelia Radzik-Rant et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Analysis of the physico-chemical characteristics and content of selected bioactive components in lamb meat, depending on the type of muscle and vacum-aging time

Publicado en línea: 19 jul 2024

Páginas: -

Recibido: 12 jul 2023

Aceptado: 08 may 2024

DOI: https://doi.org/10.2478/aoas-2024-0062

Palabras clavelambs, muscle type, aging time, CLA, carnosine L-carnitine, taurine

© 2024 Aurelia Radzik-Rant et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Palabras clave
lambs, muscle type, aging time, CLA, carnosine L-carnitine, taurine