Food Science of Animal Resources (한국축산식품학회지)

Korean Society for Food Science of Animal Resources (한국축산식품학회)
권호 표지

Antioxidant Activity of Rhus verniciflua Stokes Extract in Model Systems and Cooked Beef

모델시스템과 가열우육에서 옻나무 추출물의 항산화 효과

  • Liang Cheng Yun (College of Agriculture, Yanbian University) ;
  • Kang Sun Moon (Dept. of Food Science and Technology in Animal Resources, Kangwon National University) ;
  • Kim Yong Sun (Institute of Animal Resources, Kangwon National University) ;
  • Lee Sung Ki (Dept. of Food Science and Technology in Animal Resources, Kangwon National University)
  • 양성운 (중국 연변대학교 농학원) ;
  • 강선문 (강원대학교 축산식품과학과) ;
  • 김용선 (강원대학교 동물자원공동연구소) ;
  • 이성기 (강원대학교 축산식품과학과)
  • Published : 2005.06.01
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Abstract

This study was carried out to investigate the antioxidant effect of Rhus verniciflua Stokes (RVS) extracts. The antioxidant activity of ethanol and water extract from RVS was examined on model systems and cooked beef, respectively. As concentration of RVS ethanol extract increased (1, 10, 100, and 1,000 ppm), the reductive activity of DPPH (2, 2-diphenyl-1-picrylhydrazyl) was significantly increased (14.79, 75.08, 82.02, and $83.97\%$ respectively) (p<0.05). The RVS ethanol extract (10 ppm) was showed higher antioxidant activity than control in liposome and meat homogenate (p<0.05). It had more antioxidative effect in 10 ppm RVS ethanol extract with 2 ppm $\alpha-tocopherol$ treatment The maximum antioxidant activity appeared at pH 6.0 in meat homogenate and at pH $5.0\~6.0$ in liposome. Cooked beef mixed with Rhus verniciflua Stokes water extract showed significantly lower TBARS value, POV during storage for 4 days at $4^{\circ}C$ (p<0.05). And the RVS water extract also showed strong antioxidant activity in cooked beef which accelerated NaCl-catalyzed oxidation. Therefore, the results suggest that RVS extract may be used in commercial meat products as natural antioxidant in the near future.

본 연구는 모델시스템과 가열우육에서 옻나무 추출물의 항산화 효과를 구명함으로서 육제품에 이용 가능성을 검토하고자 실시하였다. DPPH에 대한 소거력$(\%)$은 옻나무 에탄올 추출물을 1, 10, 100, 1,000 ppm으로 증가시킴에 따라 14.79, 75.08, 82.02, $83.97\%$로 증가하였다(p<0.05). 옻나무 에탄올 추출물(10 ppm)을 liposome과 육균질물에 첨가하면 대조구보다 높은 항산화 효과를 나타냈으며, 단독 첨가보다 $\alpha-tocopherol$(2 ppm) 혼용 첨가가 억제율이 증가되었다. 육균질물은 pH 6.0에서, liposome은 pH $5.0\~6.0$에서 최대 산화 억제율을 보였다. 또한 옻나무 열수 추출물의 첨가로 인해 가열 우육의 냉장저장 중 TBARS와 POV가 대조구보다 낮은 수준으로 유지되었으며(p<0.05), 소금을 첨가하여 산화를 촉진시켰어도 강력한 항산화 효과를 나타내었다. 따라서 육제품 제조 시 옻나무 추출물이 천연 항산화제로서 이용 가능성이 있다고 판단된다.

Keywords

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