Phaffia rhodozyma 세포파쇄액으로부터 항산화제 Astaxanthin의 미셀 형성을 통한 가용화 및 추출
Solubilization and Extraction of Antioxidant Astaxanthin by Micelle Formation from Phaffia rhodozyma Cell Homogenate
Astaxanthin (3,3'-dihydroxy-β,β-carotene-4-4'-dione), a natural pigment of pink to red color, is widely distributed in nature particularly in the skin layer of salmonoids and the crust of shrimp, lobster, etc. Recently, it was produced from the yeast culture of Phaffia rhodozyma. Because of its high thermal stability and antioxidant functionality, its applications can be extended into food, cosmetics, and pharmaceutical ingredient beyond the traditional feed additive. Because of its very high lipophilicity, astaxanthin has been extracted traditionally by strong organic solvents such as chloroform, petroleum ether, acetone, etc. In this study, we developed a surfactant-based solubilization system for astaxanthin, and used it to extract astaxanthin from disrupted yeast cells. Among Tween 20, Triton X-100 and SDS, Tween 20 was identified as the most suitable surfactant in terms of extraction capacity and safety. The ethylene oxide group of Tween 20 was identified as the most significant factor to increase the HLB value that determined the extraction capacity. The effects of micelle formation condition, such as the molar ratio of astaxanthin and Tween 20, pH, and ionic strength were also investigated. pH and ionic strength showed no significant effects. The optimal molar ratio between astaxanthin and Tween 20 was 1:12. Antioxidant activity of astaxanthin was higher than β-carotene and α-tocopherol. Astaxanthin in the crude extract from the yeast cell was more resistant to air and/or light degradation than pure astaxanthin, probably because of the presence of other carotenoids and lipids.
목차
Abstract 서론 재료 및 방법 시약 세포파쇄 총 카르테노이드 함량 측정 Astaxanthin의 정량분석 TLC를 이용한 분석 Micelle 형성에 의한 추출 Astaxanthin의 항산화력 측정 결과 및 고찰 세포파쇄 계면활성제의 종류에 따른 추출효과 Tween 20의 농도에 따른 추출효과 pH, 이온강도, 조용매의 영향 미셀내 Tween과 astaxanthin의 조성 항산화력 평가 결론 REFERENCES
키워드
extraction of astaxanthinPhaffia rhodozymaantioxidant functionalitymicelleTween 20
저자
김영범 [ Young-Beom Kim | (주)두산바이오텍 ]
류강 [ Kang Ryu | 한양대학교 화학공학과 생물공정연구실 ]
임교빈 [ Gio-Bin Lim | 수원대학교 화학공학과 ]
이은규 [ Eun Kyu Lee | 한양대학교 화학공학과 생물공정연구실 ]
Corresponding author
한국생물공학회 [The Korean Society for Biotechnology and Bioengineering]
설립연도
1984
분야
공학>생물공학
소개
이 법인은 생물 공학의 발전과 보급에 이바지하고, 회원 상호 간의 연구 협력과 친목을 도모함을 목적으로 한다
1. 생물공학 분야의 발전을 위한 연구 협력
2. 생물공학의 실용화를 촉진시키기 위한 산학 협동
3. 학술연구 발표회, 강연회, 연수회 등 학술활동의 개최
4. 국,영문 학술지,소식지,학술회의 Proceedings 및 학술도서의 발간
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