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아미노산 및 비타민 C 급여에 따른 한우 우둔육의 품질특성 KCI 등재

Quality Characteristics of Top Round from Korean Cattle (Hanwoo) Supplemented with Amino Acid and Vitamin C

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동물자원연구 (Annals of Animal Resources Sciences)
강원대학교 동물자원공동연구소 (Institute of Animal Resources Kangwon National University)
초록

The objective of this study was to investigate the effect of amino acid and vitamin C supplementation on the quality attributes of top round (TR) muscle from Korean cattle (Hanwoo). Sixteen-month-old steers were divided into three different feeding groups and raised until they were 28 months old. A control group (9 heads) was fed a basal diet and rice straw, whereas two experimental groups (8 heads/group) were fed a basal diet and rice straw supplemented with rumen-protected amino acids (≥16.0% L-lysine monohydrochloride, ≥8.0% DL-methionine) and vitamin C at a dose of 100 g/head/day (AA+VC group) or only vitamin C at 100 g/head/day (VC group). After slaughter, TR muscle (M. semimembranosus) was collected from carcasses and used to measure the quality attributes. Crude fat content was significantly higher (p<0.05) in the AA+VC group than in the VC group. No significant difference was observed for water-holding capacity and shear force value between the control, AA+VC, and VC groups. Contents of the free amino acids (FAAs) glycine, aspartate, and glutamate were significantly higher (p<0.05) in the VC group than in the control group. Sensory evaluation of tenderness and flavor preference revealed significantly higher scores (p<0.05) in the AA+VC group than in the control group. These findings suggest that vitamin C supplementation increases the contents of some FAAs, and the combined supplementation of amino acids and vitamin C improves the marbling and sensory attributes of TR muscle in Hanwoo.

저자
  • 강선문(농촌진흥청 국립축산과학원 축산생명환경부) | Sun Moon Kang
  • 성필남(농촌진흥청 국립축산과학원 축산생명환경부) | Pil-Nam Seong
  • 강근호(농촌진흥청 국립축산과학원 축산생명환경부) | Geunho Kang
  • 김진형(농촌진흥청 국립축산과학원 축산생명환경부) | Jin-Hyoung Kim
  • 장선식(농촌진흥청 국립축산과학원 한우연구소) | Seonsik Jang
  • 김영춘(농촌진흥청 국립축산과학원 축산생명환경부) | Youngchun Kim
  • 김윤석(농촌진흥청 국립축산과학원 축산생명환경부) | Yunseok Kim
  • 박범영(농촌진흥청 국립축산과학원 축산자원개발부) | Beomyoung Park
  • 조수현(농촌진흥청 국립축산과학원 축산생명환경부) | Soohyun Cho Corresponding author