국내산 주요 침엽수 잎의 추출성분 (2) - 화백나무 (Chamaecyparis pisifera (Sieb. et Zucc.) Endlicher)잎 추출성분 및 항산화 활성
The dried ground needles (2.0 kg) of Chamaecyparis pisifera (Sieb. et Zucc.) Endlicher were extracted with acetone-$H_2O$ (7:3, v/v), concentrated, and fractionated with a series of n-hexane, methylene chloride, ethyl acetate and water on a separation funnel. Each fraction was freeze dried, then a p...
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Published in | 목재공학 Vol. 34; no. 4; pp. 76 - 82 |
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Main Authors | , , , |
Format | Journal Article |
Language | Korean |
Published |
한국목재공학회
30.07.2006
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Subjects | |
Online Access | Get full text |
ISSN | 1017-0715 |
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Abstract | The dried ground needles (2.0 kg) of Chamaecyparis pisifera (Sieb. et Zucc.) Endlicher were extracted with acetone-$H_2O$ (7:3, v/v), concentrated, and fractionated with a series of n-hexane, methylene chloride, ethyl acetate and water on a separation funnel. Each fraction was freeze dried, then a portion of ethyl acetate soluble powder was chromatographed on a Sephadex LH-20 column using a series of aqueous methanol and ethanol-n-hexane mixture as eluents. The isolated compounds were identified by cellulose TLC, $^1H$-, $^{13}C$-NMR, COSY, HETCOR, FAB and EI-MS. (+)-catechin, taxifolin-3-O-${\beta}$-D-xylopyrano-side, quercetin-3-O-${\alpha}$-L-rhamnopyranoside were isolated from the ethyl acetate soluble fraction of Chamaecypairs pisifera needle. Antioxidative tests on the isolated compounds indicated that all of the compounds showed similar values to ${\alpha}$-tocopherol and BHT as controls. 화백나무(Chamaecyparis pisifera (Sieb. et Zucc.) Endlicher) 잎을 채취하여 건조시킨 후 분쇄하여 2.0 kg을 acetone-$H_2O$ (7:3, v/v)로 추출하고 헥산, 메틸렌클로라이드, 에틸아세테이트 및 수용성으로 분획하여 동결건조시켰다. 에틸아세테이트용성 분획을 sephadex LH-20으로 충진한 칼럼에서 메탄올과 에탄올-헥산 혼합액을 용리용매로 사용하여 칼럼크로마토그래피를 실시하였다. 단리된 화합물들은 TLC로 확인한 후 $^1H$-, $^{13}C$-NMR, COSY, HETCOR 등의 스펙트럼을 사용하여 정확한 구조를 규명하였고 FAB-MS로써 분자량을 측정하였다. 화백나무 잎의 에틸아세테이트 가용부에는 (+)-catechin (화합물 I), taxifolin-3-O-${\beta}$-D-xylopyranoside (화합물 II), quercetin-3-O-${\alpha}$-L-rhamnopyranoside (화합물 III)가 분리되었으며 단리 화합물에 대한 항산화 실험에서는 화합물 모두 기준물질과 유사한 높은 항산화 활성을 나타내었다. |
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AbstractList | The dried ground needles (2.0 kg) of Chamaecyparis pisifera (Sieb. et Zucc.) Endlicher were extracted with acetone-$H_2O$ (7:3, v/v), concentrated, and fractionated with a series of n-hexane, methylene chloride, ethyl acetate and water on a separation funnel. Each fraction was freeze dried, then a portion of ethyl acetate soluble powder was chromatographed on a Sephadex LH-20 column using a series of aqueous methanol and ethanol-n-hexane mixture as eluents. The isolated compounds were identified by cellulose TLC, $^1H$-, $^{13}C$-NMR, COSY, HETCOR, FAB and EI-MS. (+)-catechin, taxifolin-3-O-${\beta}$-D-xylopyrano-side, quercetin-3-O-${\alpha}$-L-rhamnopyranoside were isolated from the ethyl acetate soluble fraction of Chamaecypairs pisifera needle. Antioxidative tests on the isolated compounds indicated that all of the compounds showed similar values to ${\alpha}$-tocopherol and BHT as controls. 화백나무(Chamaecyparis pisifera (Sieb. et Zucc.) Endlicher) 잎을 채취하여 건조시킨 후 분쇄하여 2.0 kg을 acetone-$H_2O$ (7:3, v/v)로 추출하고 헥산, 메틸렌클로라이드, 에틸아세테이트 및 수용성으로 분획하여 동결건조시켰다. 에틸아세테이트용성 분획을 sephadex LH-20으로 충진한 칼럼에서 메탄올과 에탄올-헥산 혼합액을 용리용매로 사용하여 칼럼크로마토그래피를 실시하였다. 단리된 화합물들은 TLC로 확인한 후 $^1H$-, $^{13}C$-NMR, COSY, HETCOR 등의 스펙트럼을 사용하여 정확한 구조를 규명하였고 FAB-MS로써 분자량을 측정하였다. 화백나무 잎의 에틸아세테이트 가용부에는 (+)-catechin (화합물 I), taxifolin-3-O-${\beta}$-D-xylopyranoside (화합물 II), quercetin-3-O-${\alpha}$-L-rhamnopyranoside (화합물 III)가 분리되었으며 단리 화합물에 대한 항산화 실험에서는 화합물 모두 기준물질과 유사한 높은 항산화 활성을 나타내었다. |
Author | Young Soo Bae 이상극 Sang Keug Lee 배영수 |
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Title | 국내산 주요 침엽수 잎의 추출성분 (2) - 화백나무 (Chamaecyparis pisifera (Sieb. et Zucc.) Endlicher)잎 추출성분 및 항산화 활성 |
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