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NTIS 바로가기한국유화학회지 = Journal of oil & applied science, v.34 no.3, 2017년, pp.631 - 642
하유진 (중부대학교 식품생명과학과) , 지중구 (중부대학교 한방건강관리학과) , 유선균 (중부대학교 식품생명과학과)
Protein hydrolysates derived from plants and animals having antioxidant, suppression of hypertension, immunodulatory, alleviation of pain, and antimicrobial activity has been known as playing important role like hormone. This study was performed to hydrolysis of Ogae egg white protein using the six ...
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핵심어 | 질문 | 논문에서 추출한 답변 |
---|---|---|
포스비틴의 구조는 어떠한가? | 특히 항암효과로 알려진 난황 단백질인 포스비틴(Phosvitin)은 아미노산 사슬의 50% 이상을 인 산화 된 serine이 차지하고 있는 특이한 구조로 되어있는데[22], 이러한 특이구조로 인해 phosvitin은 강력한 금속 킬레이트제(metal chelator)로 작용한다고 보고되고 있으며[23]. 금속 킬레이트 능력으로 인해 phosvitin이 항산화제로서 금속이온에 의해 발생되는 지방 산패를 억제할 수 있다[24-26]. | |
항산화 작용이 질병 예방에 중요한 이유는 무엇인가? | Hydroxyl radical(·OH), superoxide anion radical(·O2−), hydrogen peroxide(H2O2), peroxy radical(ROO·), singlet oxygen(1O2) 등의 활성산소(reactive oxygen species, ROS)는 정상적인 대사과정 중 미토콘드리아와 같은 세포 내 소기관에서 자연적으로 생성된다[1,2]. 생체 내에는 이들에 대한 방어기작 이 자체적으로 존재하여 체내 항산화 시스템에 의해 제거되지만[3,4], 과도한 스트레스 등과 같은 여러 요인에 의해 산화-항산화 시스템의 균형이 깨지면서 체내에 활성산소가 다량으로 존재하게 되면 세포의 구성 성분인 지질, 단백질, 당 및 DNA 등을 비가역적으로 파괴되고 암을 비롯한 뇌질환과 심장질환, 동맥경화, 피부질환, 소화기 질환, 염증, 류마티스, 면역 질환 등의 각종 질병이 발생하는 것으로 알려져 있다[5-7]. 따라서 이러한 활성산소를 제거하는 항산화 작용은 인체 내의 산화적 스트레스를 감소시켜 질병 예방에 크게 기여한다[8-10]. | |
활성산소의 종류에는 어떤 것들이 있는가? | 최근 증가하고 있는 환경오염 물질, 환경 호르몬, 흡연 및 알코올 등은 인체 내 산화적 스트레스를 가중시키고 있다. Hydroxyl radical(·OH), superoxide anion radical(·O2−), hydrogen peroxide(H2O2), peroxy radical(ROO·), singlet oxygen(1O2) 등의 활성산소(reactive oxygen species, ROS)는 정상적인 대사과정 중 미토콘드리아와 같은 세포 내 소기관에서 자연적으로 생성된다[1,2]. 생체 내에는 이들에 대한 방어기작 이 자체적으로 존재하여 체내 항산화 시스템에 의해 제거되지만[3,4], 과도한 스트레스 등과 같은 여러 요인에 의해 산화-항산화 시스템의 균형이 깨지면서 체내에 활성산소가 다량으로 존재하게 되면 세포의 구성 성분인 지질, 단백질, 당 및 DNA 등을 비가역적으로 파괴되고 암을 비롯한 뇌질환과 심장질환, 동맥경화, 피부질환, 소화기 질환, 염증, 류마티스, 면역 질환 등의 각종 질병이 발생하는 것으로 알려져 있다[5-7]. |
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