PMID- 30018503 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20201001 IS - 1225-8563 (Print) IS - 2234-246X (Electronic) IS - 1225-8563 (Linking) VI - 38 IP - 3 DP - 2018 Jul TI - Comparison of Marbling Fleck Characteristics and Objective Tenderness Parameters with Different Marbling Coarseness within Longissimus thoracis Muscle of High-marbled Hanwoo Steer. PG - 606-614 LID - 10.5851/kosfa.2018.38.3.606 [doi] AB - It is important to understand how marbling traits and tenderness differ among beef steaks from the carcass grading site and other regions within the longissimus thoracis (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(th) 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, p<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 (p>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 (p<0.05). Taken together, the degree of coarseness of marbling fleck decreased from the carcass grading site to the front thoracic site, whereas the objective tenderness parameters, including WBS and hardness, of the grading site did not differ from the other regions within the LT muscle. FAU - Lee, Boin AU - Lee B AD - Department of Animal Sciences, Kyungpook National University, Sangju 37224, Korea. FAU - Yoon, Sungho AU - Yoon S AD - Korea Institute for Animal Products Quality Evaluation, Sejong 30100, Korea. FAU - Lee, Younkyung AU - Lee Y AD - Department of Animal Sciences, Kyungpook National University, Sangju 37224, Korea. FAU - Oh, Eunmi AU - Oh E AD - Department of Animal Sciences, Kyungpook National University, Sangju 37224, Korea. FAU - Yun, Yun Kyung AU - Yun YK AD - Korea Institute for Animal Products Quality Evaluation, Sejong 30100, Korea. FAU - Kim, Byoung Do AU - Kim BD AD - Korea Institute for Animal Products Quality Evaluation, Sejong 30100, Korea. FAU - Kuchida, Keigo AU - Kuchida K AD - Obihiro University of Agriculture and Veterinary Medicine, Obihiro-Shi 080-8555, Japan. FAU - Oh, Hee Kyung AU - Oh HK AD - Department of Food and Nutrition, Jangan University, Hwaseong 18331, Korea. FAU - Choe, Jeehwan AU - Choe J AD - Department of Animal Science and Biotechnology, Chungnam National University, Daejeon 34134, Korea. FAU - Choi, Young Min AU - Choi YM AD - Department of Animal Sciences, Kyungpook National University, Sangju 37224, Korea. LA - eng PT - Journal Article DEP - 20180731 PL - Korea (South) TA - Korean J Food Sci Anim Resour JT - Korean journal for food science of animal resources JID - 101660566 PMC - PMC6048382 OTO - NOTNLM OT - Hanwoo OT - coarseness OT - marbling fleck OT - tenderness parameter EDAT- 2018/07/19 06:00 MHDA- 2018/07/19 06:01 PMCR- 2018/07/01 CRDT- 2018/07/19 06:00 PHST- 2018/05/17 00:00 [received] PHST- 2018/05/31 00:00 [revised] PHST- 2018/06/03 00:00 [accepted] PHST- 2018/07/19 06:00 [entrez] PHST- 2018/07/19 06:00 [pubmed] PHST- 2018/07/19 06:01 [medline] PHST- 2018/07/01 00:00 [pmc-release] AID - kosfa-38-3-606 [pii] AID - 10.5851/kosfa.2018.38.3.606 [doi] PST - ppublish SO - Korean J Food Sci Anim Resour. 2018 Jul;38(3):606-614. doi: 10.5851/kosfa.2018.38.3.606. Epub 2018 Jul 31.