• 제목/요약/키워드: Spectroscopic studies

검색결과 512건 처리시간 0.019초

Alkaloidal Components of panax ginseng

  • Han, Byung-Hoon;Park, Myung-Hwan;Han, Yong-Nam;Woo, Lin-Keun
    • Archives of Pharmacal Research
    • /
    • 제9권1호
    • /
    • pp.21-23
    • /
    • 1986
  • Over twelve alkaloids were delected in the roots of Panax ginseng C. A. Meyor. Among them three alkaloids were isolated and were identified as $N_{9}$-formylharman, ethyl $\beta$-carboline-1-carboxylate and perlolyrine on the basis of spectroscopic studies.

  • PDF

물봉선의 성분(成分)에 관한 연구(硏究) (Studies on the Constituents of Impatiens textori)

  • 김종원;최경숙
    • 생약학회지
    • /
    • 제24권1호
    • /
    • pp.26-31
    • /
    • 1993
  • Four flavonoids were isolated from the ether and ethylacetate extracts of Impatiens textori Miquel(Balsaminaceae). The structures were elucidated as luteolin(I), apigenin(II), chrysoeriol(III), and chrysoeriol 7-glucoside(IV) by physico-chemical and spectroscopic methods. These compounds were isolated from this plant for the first time.

  • PDF

터리풀의 성분에 관한 식물 화학적 연구 (Phytochemical Studies on the Constituents of Filipendula glaberrima)

  • 여호섭;김진웅;정보섭
    • 생약학회지
    • /
    • 제23권3호
    • /
    • pp.121-125
    • /
    • 1992
  • Three compounds were isolated from the chloroform and n-butanol extracts of Filipendula glaberrima (Rosaceae). The structures of these isolates were elucidated as monotropitin, (+)-catechin, and ${\beta}-sitosteryl-3-O-{\beta}-D-glucopyranoside$ by spectroscopic analysis, and were identified by comparison of their spectra with those of reported ones.

  • PDF

Microbial Metabolism of the Environmental Estrogen Bisphenol A

  • Yim, Soon-Ho;Kim, Hyun-Jung;Lee, Ik-Soo
    • Archives of Pharmacal Research
    • /
    • 제26권10호
    • /
    • pp.805-808
    • /
    • 2003
  • Preliminary microbial metabolism studies of bisphenol A (BPA) (1) on twenty six microorganisms have shown that Aspergillus fumigatus is capable of metabolizing BPA. Scale-up fermentation of 1 with A. fumigatus gave a metabolite (2) and its structure was established as bisphenol $A-O-{\beta}-D-glucopyranoside$ (BPAG) based on spectroscopic analyses.

Hydrocotyle japonica의 약효성분에 관한 연구 (II) (Studies on the Pharmaco-Constituents of Hydrocotyle japonica(II))

  • 조의환;김일혁
    • 약학회지
    • /
    • 제35권5호
    • /
    • pp.427-431
    • /
    • 1991
  • A flavonoidal glycoside was isolated from the whole plant of Hydrocotyle japonica(Um belliferae) and identified as quercetin-3-O-$\beta$-D-galactoside quercetin-3-O-$\beta$-D-(hyperoside) (C$_{21}H_{20}O_{12}$.1/3 $H_2O$, yellow needle crystal, m.p. $249~250^{\circ}$, $[\alpha]^{28}_D^{\circ}$$-65.94^{\circ}$ in pyridine) by physicochemical properties and spectroscopic evidences(UV, IR, NMR and Mass etc., in comparison with authentic sample.

  • PDF