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논문 기본 정보

자료유형
학술저널
저자정보
Koh, Kyung Chul (Korean Meat Research Institute) Chung, Ku-Yong (Department of Animal Science and Biotechnology, Sangji University) Kim, Hyun-Seok (Department of Animal Science and Biotechnology, Sangji University) Kang, Se-Joo (Korea Institute for Animal Products Quality Evaluation) Choi, Chang-Bon (Department of Medical Biotechnology, Yeungnam University) Jo, Cheorun (Institute of Green Bio Science and Technology, Seoul National University) Choe, Juhui (Department of Agricultural Biotechnology, Center for Food and Bioconvergence, and Research Institute of Agriculture and Life Science, Seoul National University)
저널정보
한국축산식품학회 Food science of animal resources Food science of animal resources 제39권 제1호
발행연도
2019.1
수록면
139 - 150 (12page)

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This study aimed to determine the suitable point of sale and consumption of different quality grade (QG) Hanwoo short loin during aging period, based on physicochemical, sensory, and microbiological quality. Short loins obtained from the carcasses of 13 Hanwoo steers and 2 bulls with 5 different QGs (1++, 1+, 1, 2, and 3) were analyzed over 28 d. QG and aging time had significant effect on water holding capacity, color, shear force, total volatile basic nitrogen (TVBN) content, and sensory traits. Higher QG groups generally exhibited a lower shear force, nucleotide content, and water holding capacity, and higher $L^*$, $a^*$, and $b^*$ values. Acceptable tenderness (shear force <5.4 kg) in QG 1++, 1+, 1, and 2 was achieved on days 7, 14, 16, and 18, respectively, and QG 3 showed a shear force of 6.8 kg, even after 28 d. Regardless of QG, TVBN content below threshold levels (20-30 mg%) was observed throughout the 28 d aging period, while total plate counts above 7 Log CFU/g were seen at 21 d. In conclusion, it is recommended that Hanwoo beef with QG 1++, 1+, and intermediate QG (1 and 2) should be sold or consumed between 7 and 21, 14 and 21, 16 and 21 d, respectively. Beef with QG 3 should be sold or consumed within 21 d, based on microbial growth, even though it has not achieved desirable tenderness. For this reason, an additional tenderizing process is recommended before this beef is ready for consumption.

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