• 제목/요약/키워드: sterol mixture

검색결과 33건 처리시간 0.021초

물레나물로부터 Steroid 및 Flavonoid 성분의 분리 (Isolation of Steroids and Flavonoids from the Herbs of Hypericum ascyron L.)

  • 권상혁;윤세영;이경태;박희준
    • 생약학회지
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    • 제31권1호
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    • pp.39-44
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    • 2000
  • A sterol mixture, 3-O-glucosides of these sterols, 6'-O-fattyacyl ester of these sterol glucosides, kaempferol, quercetin and isoquercitrin were isolated from the whole plants of Hypericum ascyron L. The sterols were found to be a mixture of ${\beta}-sitosterol$, campesterol and stigmasterol by GC-MS. The kinds of fatty acids linked at 6'-OH of sterol glucoside ester mixture were shown to be palmitic acid, stearic acid, oleic acid and linoleic acid by GC-MS. Three flavonoids were identified by spectroscopic methods and comparisons of mixed mp and co-TLC with authentic specimens.

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와송의 성분에 관한 연구 (A Study on the Chemical Constituents of Orostachys japonicus A. Berger)

  • 박희준;양한석;김정옥;이숙희;최재수
    • 생약학회지
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    • 제22권2호
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    • pp.78-84
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    • 1991
  • From the whole plants of Orostachys japonicus(Crassulaceae), fatty acid ester mixture, seco-A-triterpene mixture, glutinone, friedelin, ${\beta}-amyrin$, glutinol, epifridelanol, 1-hexatriacontanol, sterol mixture, steryl glucoside mixture were isolated and characterized by spectral data.

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콩나물의 Sterol 성분(成分)에 관한 연구(硏究) (Studies on the Sterols of Bean Sprouts)

  • 정재기;정태영;나상무
    • Journal of Nutrition and Health
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    • 제9권3호
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    • pp.26-30
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    • 1976
  • The contents of sterols in bean sprouts have been determined by mass spectrical analysis. From non-saponifiable fraction of n-Hexane extracts of the under ground parts sterol-like substance $(m.P.\;142-145^{\circ}C)$ was isolated. It was shown to be a sterol mixture on the basis of three peaks in gas liquid chromatogram. By mass spectrometrical analysis of the mixture, it was composed of 4.52mg% of Campesterol $(C_{28},\;{\Delta}^{5})$, 10.35mg% of ${\beta}-sitosterol\;(C_{29},\;{\Delta}^{5})$ and 7.75mg% of stigmasterol $(C_{29},\;{\Delta}^{5,\;22})$.

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Sterols and Sterol Glycosides from the Leaves of Gynura procumbens

  • Sadikun, A.;Aminah, I.;Ismail, N.;Ibrahim, P.
    • Natural Product Sciences
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    • 제2권1호
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    • pp.19-23
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    • 1996
  • A mixture of sterols containing ${\beta}-sitosterol$ and stigmasterol (1), and sterol glycosides containing $3-O-{\beta}-D-glucopyranosyl$ ${\beta}-sitosterol$ and $3-O-{\beta}-D-glucopyranosyl$ stigmasterol (2) were isolated from the leaves of Gynura procumbens. After acetylation of 2 with pyridine-acetic anhydride, $3-0-{\beta}-D-tetra-O-acetylglucopyranosyl$ ${\beta}>-sitosterol$ (3) was isolated.

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자귀나무 꼬투리로부터 Acylated Sterylglycoside의 분리 (Isolation of Acylated Sterylglycosides from the Legumes of Albizzia julibrissin)

  • 김영희
    • 생약학회지
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    • 제30권3호
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    • pp.290-294
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    • 1999
  • From the legumes of Albizzia julibrissin Durazzini (Leguminosae), a mixture of long-chain alcohols, ${\alpha}-spinasterol$, a mixture of acylated sterol glycosides and ${\alpha}-spinasteryl$ $3-O-{\beta}-D-glucoside$ were isolated. Two mixtures of long-chain alcohols and acylated sterol glycosides were characterized as 1-hexacosanol (major) and 1-tetracosanol, and $3-O-[6'-O-palmitoyl-{\beta}-D-glucosyl]-{\alpha}-spinasterol$ (major) and its 6'-O-stearoyl ester. All compounds were identified on the basis of spectral data and chemical reactions.

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Caragana chamlagu Lamarck의 Sterol 성분에 관한 연구 (Studies on the Sterols of Caragana chamlagu Lamarck)

  • 성환길;김일혁
    • 약학회지
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    • 제22권4호
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    • pp.219-225
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    • 1978
  • From the dried roots of Caragana chamlagu Lamarck which have been known to be effective against neuralgia, arthritis, migraine, and sputum, etc. in the folk medicines of Korea, a colorless sterol-like substance, C$_{29}H_{50}O$, m.p. $115-117^{\circ}$, was isolated from the non-saponified fraction of methanolic extract. It was confirmed to be a mixture of four sterols, namely cholesterol, brassicasterol, campesterol, and $\beta$-sitosterol by physico-chemical properties, ir, nmr, mass spectra and gas liquid chromatographic method with the comparison of the authentic samples. In mass fragments of four sterols, furthermore, the same ions of m/e 273, 255, 229 and 213 were assigned to fragments of stigmastane skeletons of the unsaturated phytosterol, and the characteristic ions of each sterol were observed 386, 371, 368, 353 in cholesterol, 398, 383, 380, 365, 355, 337 in brassicasterol, 400, 385, 382, 367 in campesterol and 414, 399, 396, 381 in $\beta$-sitosterol, respectively.

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멍석딸기뿌리의 성분(成分)에 관한 연구(硏究)( I ) -(-)-Epicatechin의 분리(分離)- (Studies on the Constituents of the Roots of Rubus parvifolius (I) -Isolation of (-)-Epicatechin-)

  • 도재철;손건호;강삼식
    • 생약학회지
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    • 제19권3호
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    • pp.170-173
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    • 1988
  • (-)-Epicatechin, $mp\;234{\sim}6^{\circ}$, was isolated from the fresh roots of Rubus parvifolius together with a sterol mixture, which was found to be a mixture of ${\beta}-sitosterol\;(major)$, stigmasterol and campesterol.

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Phytochemical study on randia siamensis

  • Lapikanon, Pattra;Tovivich, Phichai;Woo, Won-Sick;Choi, Jae-Sue
    • Archives of Pharmacal Research
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    • 제6권1호
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    • pp.29-33
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    • 1983
  • From the roots of Pandia siamensis, D-mannitol, a mixture of .betha.-sitosterol and campesterol, oleanolic acid acetate, oleanolic acid-3-.alpha.-L-arabino side and mesembryanthemoidigenic acid as a sapogenin were isolated and characterized.

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왕초피나무 Zanthoxylum coreanum Nakai의 성분연구(成分硏究)(I) (Studies on the Constituents of Zanthoxylum coreanum Nakai)

  • 육창수;김창민;신응태
    • 생약학회지
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    • 제18권3호
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    • pp.180-183
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    • 1987
  • Pericarp of Zanthoxylum coreanum Nakai have been used as a crude medicine for the treatment of ozena, rheumatoid, nasal sinusitis, meno-xenia, dyspepsia, toothache, sore throat, pains in the limbs, etc. in Korea. A sterol fraction and two compounds, compound I and II were isolated from the roots, stems, leaves of Zanthoxylum coreanum Nakai. The sterol fraction was identified as a mixture of ${\beta}-sitosterol$ and campesterol. Compound I, colorless prismatic crystals, $C_{13]H_{13}NO_4$, mp. $175{\sim}177^{\circ}$, was proved to be skimmianine which is one of the alkaloids and compound II, $C_{14}H_{28}O_2$, mp. $53{\sim}55^{\circ}$, white powdered crystals was identified as myristic acid.

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