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NTIS 바로가기한국유화학회지 = Journal of oil & applied science, v.34 no.3, 2017년, pp.673 - 682
하유진 (중부대학교 식품생명과학과) , 김슬기 (중부대학교 식품생명과학과) , 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 fractioned to hydrolysis of Ogae egg white protein using the ult...
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핵심어 | 질문 | 논문에서 추출한 답변 |
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Phosvitin는 어떤 구조로 되어있는가? | 천연기념물 265호로 지정이 된 한국 재래 오골계인 연산 오계는 예로부터 질병을 예방하고 건강을 개선하는 식품으로 알려져 왔다. 특히 항암효과로 알려진 오계의 난황 단백질인Phosvitin은 아미노산 사슬의 50 % 이상을 인산화 된 serine이 차지하고 있는 특이한 구조로 되어있는데[2], 이러한 특이구조로 인해 phosvitin은 강력한 Fe2+ metal chelator로 작용한다고 보고되고 있으며[3], Fe2+ chelation ability으로 인해 phosvitin이 항산화제로서 금속이온에 의해 발생되는 지방 산패를 억제할 수 있는 것으로 발표되었다[4, 5]. 이외에 닭 가공 공정 부산물 단백질, 닭 가슴살 단백질, 닭 날개 단백질, 난 단백질, 닭 피부 단백질로부터 기능성 펩타이드 생산 및 생리활성에 대한 연구들이 발표되고 있다[6-12]. | |
막 분리는 무엇인가? | 막 분리(membrane separation)는 환경 친화적이고 비교적 적은 공정비로 유용한 물질을 분획하는 기술이다[13]. 많은 연구들이 단백질 및 단백질 가수 분해물들의 분획을 pH, 온도, 이온강도 등 조건에 따라 막과 물질과의 상호 연관에 대한 많은 연구들이 발표 되어 오고 있다[14]. | |
항산화제의 프로톤공여 능력은 DPPH radical scavenging activity의 어떤 지표를 통해 나타나는가? | DPPH radical scavenging activity는 DPPH radical이 항산화제와 같은 프로톤공여(proton donating) 물질과 반응하면 radical이 scavenging된다. 그리고 항산화제의 프로톤공여 능력에 따라서 짙은 보라색이 탈색되어 노란색으로 변하는 정도를 지표로 하여 항산화력을 측정하는 방법이다[22]. |
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