Journal of Applied Biological Chemistry

The Korean Society for Applied Biological Chemistry (한국응용생명화학회)
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Composition Analysis and Antioxidant Activity of Ojuk (Phyllostachys nigra Munro) Leaf Tea and Shoot Tea

오죽잎차와 오죽죽순차의 성분 분석 및 항산화 효과

  • Kim, Sang-Min (Functional Food Center, KIST Gangneung Institute) ;
  • Jeon, Je-Seung (Functional Food Center, KIST Gangneung Institute) ;
  • Kang, Suk-Woo (Functional Food Center, KIST Gangneung Institute) ;
  • Kim, Woo-Ri (Functional Food Center, KIST Gangneung Institute) ;
  • Lee, Ki-Deok (Faculty of Marine Bioscience & Technology, Gangneung-Wonju National University) ;
  • Um, Byung-Hun (Functional Food Center, KIST Gangneung Institute)
  • Received : 2012.03.19
  • Accepted : 2012.05.15
  • Published : 2012.06.30
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Abstract

Nutritional components of Ojuk leaf tea and Ojuk shoot tea prepared from the leaves and shoots of black bamboo (Phyllostachys nigra Munro) by tea manufacturing process were evaluated. In addition, the extraction yield of water soluble components from these teas in the general tea brewing condition (water extraction in $80^{\circ}C$ for 10 min.) and the contents of polyphenol and flavonoid were compared with not only the dried raw materials, but also green tea and mate tea. Finally, offline and online scavenging activities against 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) and di(phenyl)-(2,4,6 trinitrophenyl)iminoazanium free radicals were investigated to evaluate the antioxidant activity and explore the components showing ABTS free radical scavenging activity from tea infusion. These results demonstrated that these teas from black bamboo contain various nutritional components and can be used as traditional tea beneficial to human health.

본 논문에서는 오죽(Phyllostachys nigra Munro)의 잎과 죽순을 사용하여 차 가공공정을 통한 오죽잎차와 오죽죽순차가 제조되었고, 이들에 대한 영양성분 분석을 실시하였다. 뿐만 아니라, 일반적인 차를 음용하는 조건($80^{\circ}C$ 물, 10분)에서 이들 차로부터 얻을 수 있는 수용성 물질의 추출율과 총 폴리페놀 함량, 총 플라보노이드 함량이 가공되지 않은 오죽 원재료 및 마테차, 녹차와 비교되었다. 마지막으로 차 음료에 포함된 항산화능과 각 항산화 화합물을 탐색하고자 온라인, 오프라인 항산화 분석이 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) and di(phenyl)-(2,4,6trinitrophenyl)iminoazanium (DPPH) 라디칼에 대해서 이루어졌다. 본 논문의 결과는 오죽으로부터 제조된 이들 차가 다양한 영양성분을 함유하고 있고, 건강에 이로운 전통차로 음용될 수 있음을 보여주었다.

Keywords

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