Comparison of Marbling Fleck Characteristics and Objective Tenderness Parameters with Different Marbling Coarseness within Longissimus thoracis Muscle of High-marbled Hanwoo Steer

It is important to understand how marbling traits and tenderness differ among beef steaks from the carcass grading site and other regions within the (LT) muscle, as these characteristics are closely associated with consumer acceptability and willingness to purchase. Thus, the aim of this study was t...

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Published in:Korean journal for food science of animal resources 2018-07, Vol.38 (3), p.606-614
Main Authors: Lee, Boin, Yoon, Sungho, Lee, Younkyung, Oh, Eunmi, Yun, Yun Kyung, Kim, Byoung Do, Kuchida, Keigo, Oh, Hee Kyung, Choe, Jeehwan, Choi, Young Min
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container_title Korean journal for food science of animal resources
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creator Lee, Boin
Yoon, Sungho
Lee, Younkyung
Oh, Eunmi
Yun, Yun Kyung
Kim, Byoung Do
Kuchida, Keigo
Oh, Hee Kyung
Choe, Jeehwan
Choi, Young Min
description It is important to understand how marbling traits and tenderness differ among beef steaks from the carcass grading site and other regions within the (LT) muscle, as these characteristics are closely associated with consumer acceptability and willingness to purchase. Thus, the aim of this study was to compare the marbling fleck traits and objective tenderness parameters in the groups classified by the coarseness index (CI) of marbling fleck (high and low groups) at the carcass grading site (13 thoracic vertebra; 13T) and three different locations (13T, 9T, and 6T) within the LT muscle from well-marbled (marbling score 7 to 9) Hanwoo steer. Image analysis showed that the longitudinal locations had a significant effect on marbling fleck traits. The total area of large marbling fleck divided by the total marbling area (coarseness) was higher at the central region (13T to 12T) compared to the front thoracic region (6T to 5T) in the high CI group (0.23 vs. 0.17, 0.05). Location effect on objective tenderness parameters within the LT muscle was somewhat limited, although the high CI group had a lower Warner-Bratzler shear force (WBS) value than did the low group (
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Thus, the aim of this study was to compare the marbling fleck traits and objective tenderness parameters in the groups classified by the coarseness index (CI) of marbling fleck (high and low groups) at the carcass grading site (13 thoracic vertebra; 13T) and three different locations (13T, 9T, and 6T) within the LT muscle from well-marbled (marbling score 7 to 9) Hanwoo steer. Image analysis showed that the longitudinal locations had a significant effect on marbling fleck traits. The total area of large marbling fleck divided by the total marbling area (coarseness) was higher at the central region (13T to 12T) compared to the front thoracic region (6T to 5T) in the high CI group (0.23 vs. 0.17, &lt;0.05), whereas no significant differences were observed in the total number of marbling fleck within the LT muscle in the high or low CI groups ( &gt;0.05). Location effect on objective tenderness parameters within the LT muscle was somewhat limited, although the high CI group had a lower Warner-Bratzler shear force (WBS) value than did the low group ( &lt;0.05). 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title Comparison of Marbling Fleck Characteristics and Objective Tenderness Parameters with Different Marbling Coarseness within Longissimus thoracis Muscle of High-marbled Hanwoo Steer
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