Steroidal alkaloids and saponins of solanum sepi cula [DUN]

The investigation of the alkaloidal fraction of S. sepicula [Dun], afforded in addition to choline chloride, four steroidal alkaloids and one steroidal saponine. The latter was isolated for the first time from the genus Solanum. The isolated compounds were identified by comparing their 1H and 13C NMR data with those of reported data

Macro and micromorphological study of the inflorescence and the fruit of ochradenus baccatus del growing in Egypt

The macro- and micromorphological characters of the inflorescence and fruit of Ochradenus baccatus Del. growing in Egypt are reported in order to find out the features of these diagnostic organs by which the plant could be easily identified in the entire and powdered forms

New glucosinolates from resedaceae

Four glucosinolates have been isolated from the leaves and inflorescences of Ochradenus baccatus Del., three of them are new. The compounds were identified by spectroscopic analysis of their hydrolytic products to be 2-[O-hydroxyphenyl]-ethyl glucosinolate [I], 2-hydroxy-2-[O-hydroxyphenyl]-ethyl glucosinolate [II], m- hydroxybenzyl glucosinolate [III] and 2-hydroxy-[2',4'- dihydroxyphenyl]-ethyl glucosinolate [IV]

Phytochemical investigation of centaurea eryngioides lam growing in Egypt

Column chromatography of the light petroleum extract of C. eryngioides yielded lupeol acetate, lupeol, saturated hydrocarbon, sitosterol mixture and beta-sitosterol glucoside. The chloroform extract afforded the flavonoids: neglectin, neglectin-7-glucoside, pinocembrin and pinocembrin-5,7-diglycoside. GLC of the methylated fatty acids revealed the presence of 16 fatty acids. Analysis of the total hydrocarbons by GLC showed the presence of 18 different hydrocarbons. The fractionated extracts were examined for antimicrobial and antitumor activities to indicate promising activity

Alkaloids and steroidal sapogenins of the corms of merendra persica l

From the corms of Merendra persica L. [Liliaceae], six alkaloids [colchicine, beta and gamma-lumicolchicine, gamma-lumi-3-demethylcolchicine, 3-demethylcolchicine and demecolcine], three steroidal sapogenins [gitogenin, ruscogenin and diosgenin] and beta-sitosterol were isolated. The identification of the isolated compounds was based on spectroscopic [UV, IR, NMR and MS] and chromatographic evidences

Macro and micromorphological study of centaurea aegyptiaca L

The macro and micromorphology of the root, stem and leaf of Centaurea aegyptiaca L. Growing in Egypt are presented with the view of finding out the characters of the diagnostic features by which these organs can be identified in both the entire and powdered forms

Pharmacognostical study of calicotome villosa poir growing in Libya

On the continuation of pharmacognostical study of Calicotome villosa Poir., a macro- and micromorphological study of leaves and stems was presented with the view of finding out the diagnostic characters for identification of these organs in both entire and powdered forms

Pharmacognostical study of calicotome villosa poir growing in Libya Part I Phytochemical screening of aerial parts and macro-and micromorphology of fruits

A preliminary phytochemical screening of the aerial parts of Calicotome villosa poir. growing in Libya revealed the presence of tannins, flavonoids, steroids and/or triterpenes, coumarins, saponins, and carbohydrates. Moreover, macro-and micromorphology of the fruit is presented with the view of finding out diagnostic characters for identification of the plant

Pharmacognostical study of the rhizomes and roots of gentina kurroo rovle

A macro and micromophological study of the rhizomes and roots of Gentiana kurroo royle [Gentianaceae] is presented with the aim of their identification in the entire and powdered forms. A preliminary phytochemical investigation revealed the presence of sterols ans/or triterpenes, carbohydrates and/or glycosides and flavonoids. TLC and HPLC chromatographic analysis of this ethyl acetate fraction of the ethanolic extract revealed the presence of at least five iridoid glycosides. Five of them were isolated and the major one was identified as 6-cinnamoylcatalpol: Preliminary pharmacological screening revealed that this plant possesses smooth muscle relaxant effect and prevent histamine release from mast cells

Macro and micromorphology of leaves, stem, root and rootstock of limonium angustifolium turr growing in Egypt

Previously, the chemistry of this plant was studied, where the isolation of some phytosterols, triterpene and two flavonoids as well as the antimicrobial principle of gallic acid was reported. Furthermore, detailed description of the inflorescence of this plant to facilitate the identification of the plant was provided. In this paper, the macro- and micromorphology of the leaves, stem, root and rootstock of Limonium angustifolium Turr, as well as their powders were described