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논문 기본 정보

자료유형
학술저널
저자정보
Xiang Xu (China Agricultural University) Yanxiang Gao (China Agricultural University)
저널정보
한국식품과학회 Food Science and Biotechnology Food Science and Biotechnology vol 18. no 2
발행연도
2009.4
수록면
312 - 316 (5page)

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Antioxidant-rich oils were extracted from different parts of sea buckthorn berry with supercritical CO₂ (SC-CO₂) and n-hexane. The functional components were analyzed and the extracts were screened for their potential as radical scavengers in 1,1-diphenyl-2-picrylhydrazyl radical (DPPH), 2,2’-azinobis-3-ethylbenzotiazoline-6-sulphonic acid (ABTS), galvinoxyl systems. Minor differences were found in fatty acid composition of oils extracted by the two methods. Seed oil contains the highest content of tocopherols while pulp oil and whole berry oil possessed higher concentration of carotenoids. Whole berry oil, pulp oil, and seed oil extracted by SC-CO₂ showed 91.7, 90.9, and 93.5% radical scavenging activity (RSA) at 6 ㎎/㎖ towards DPPH and 74.3, 54.3, and 74.8% towards galvanoxyl radical at 10 ㎎/㎖. The hexane-extracted oils showed similar scavenging ability. However, the oils obtained by hexane showed significantly higher RSA (p<0.05) than those obtained by SC-CO₂ while whole berry oil has the highest RSA towards ABTS among 3 oil samples.

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Abstract
Introduction
Materials and Methods
Results and Discussion
References

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