References of "Plantes médicinales et phytothérapie"
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See detailAction antiradicalaire de flavonoïdes et d'extraits de Chrysanthellum indicum
Brasseur, Thierry; Angenot, Luc ULg; Pincemail, Joël ULg et al

in Plantes médicinales et phytothérapie (1987), 21(2), 131-137

Chrysanthellum indicum DC subsp. americanum ( sold under the name of Chrysanthellum americanum) shows an antiradicalar activity against diphenylpicrylhydrazyl radical (DPPH). the activity seems to be ... [more ▼]

Chrysanthellum indicum DC subsp. americanum ( sold under the name of Chrysanthellum americanum) shows an antiradicalar activity against diphenylpicrylhydrazyl radical (DPPH). the activity seems to be mainly due to unusual flavonoids (e.g. mareine ( a chalcone) and maritimein ( an aurone) .Dilute alcoholic extracts would not be used for extract preparations because the glycosides are rapidly hydrolysed. [less ▲]

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See detailContribution à l'étude des propriétés insecticides et chimiques d'Eucalyptus saligna du Zaïre
Kambu, Kabangu; Di Phanzu, N.; Coune, Claude et al

in Plantes Médicinales et Phytothérapie (1982), 16(1), 34-38

The oil of Eucalyptus saligna ( collected on the campus of the University at Kinshasa ( Zaire or Democratic Republic of Congo) has insecticidal properties (against flies, lice, mosquitoes, bed-bugs, black ... [more ▼]

The oil of Eucalyptus saligna ( collected on the campus of the University at Kinshasa ( Zaire or Democratic Republic of Congo) has insecticidal properties (against flies, lice, mosquitoes, bed-bugs, black-beetles) and contains mainly : 1,8-cineol, alpha-pinene,borneol, alpha-terpineol and linalol. [less ▲]

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See detailAlcaloïdes des feuilles du Strychnos variabilis
Tits, Monique ULg; Angenot, Luc ULg

in Plantes médicinales et phytothérapie (1980), 14(4), 213-217

The two major alkaloids of the leaves of Strychnos variabilis are : acetylisoretuline which is found for the first time from a natural source and isoretuline previously discovered in the root of the same ... [more ▼]

The two major alkaloids of the leaves of Strychnos variabilis are : acetylisoretuline which is found for the first time from a natural source and isoretuline previously discovered in the root of the same Strychnos. Moreover the minor alkaloid, retuline, has been isolated. The spectral data (UV,IR,MS,NMR) are recorded for the new compound. [less ▲]

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See detailNouveaux alcaloïdes oxindoliques du Strychnos usambarensis GILG
Angenot, Luc ULg

in Plantes médicinales et phytothérapie (1978), 12(2), 123-129

It is the first time that oxindole alkaloids are found in a Strychnos species. Strychnofoline and isostrychnofoline (C30H34N402) as well as strychnophylline and isostrychnophylline (C35H43N5O2) are new ... [more ▼]

It is the first time that oxindole alkaloids are found in a Strychnos species. Strychnofoline and isostrychnofoline (C30H34N402) as well as strychnophylline and isostrychnophylline (C35H43N5O2) are new bis-indole alkaloids: the elucidation of structure and their stereochemistry are also discussed; UV, IR, NMR, MS and CD data are provided. [less ▲]

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See detailNote sur le Strychnos innocua DELILE ( Loganiaceae)
Angenot, Luc ULg; Wauters, Jean-Noël ULg

in Plantes médicinales et phytothérapie (1974), 8(4), 314-317

Strychnos innocua is frequently cited in African traditional medicine. Root bark has been chemically screened.A small amount of alkaloids was detected as well as loganic acid. The plant contains at least ... [more ▼]

Strychnos innocua is frequently cited in African traditional medicine. Root bark has been chemically screened.A small amount of alkaloids was detected as well as loganic acid. The plant contains at least two alkaloids that are devoid of an indole skeleton. The authors suggest that they are monoterpenic and not very different from gentianine. However the products would not be artefacts because ammonia was not used for alkalinization before the extraction [less ▲]

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See detailAlcaloïdes des Loganiacées: sur l'isolement de l'harmane à partir du Strychnos usambarensis
Angenot, Luc ULg; Bisset, Norman; Denoël, Albert

in Plantes Médicinales et Phytothérapie (1973), 7(1), 33-36

Harman has been isolated for the first time from a species of the Family of Loganiaceae. MS data are provided as well as the list of plants where this product has een previously detected.

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See detailDécouvertes récentes dans la chimie des alcaloïdes du Strychnos usambarensis GILG
Angenot, Luc ULg; Denoël, Albert

in Plantes médicinales et phytothérapie (1973), 7(4), 284-292

Six bis-indole alkaloids have been isolated from the rootbark of Strychnos usambarensis.Four alkaloids ( usambarensine and derivatives) are unsymmetrical bis-indole products, biogenetically derived from ... [more ▼]

Six bis-indole alkaloids have been isolated from the rootbark of Strychnos usambarensis.Four alkaloids ( usambarensine and derivatives) are unsymmetrical bis-indole products, biogenetically derived from two tryptaminic and one monoterpene units as some alkaloids of Apocynaceae (Ochrosia) and Rubiaceae ( Uncaria), two families very close to Loganiaceae from a chemotaxonomy point of view. Two other alkaloids (C-dihydrotoxiferine and C_Curarine) are symmetrical bis-indole quaternary products. These potent compounds were previously isolated from calabash-curare and some American Strychnos. Furthermore, we have isolated loganic acid and discussed the part that it could take in the biogenesis of various alkaloids. [less ▲]

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See detailEssais phytochimiques préliminaires sur quelques plantes médicinales du Rwanda oriental
Angenot, Luc ULg

in Plantes médicinales et phytothérapie (1970), 4(4), 263-278

This paper gives results of phytochemical screening on some thirty medicinal and toxic plants mainly collected in Eastern Rwanda ( national ParK of Akagera). these plants belong to variuos genera ( Acacia ... [more ▼]

This paper gives results of phytochemical screening on some thirty medicinal and toxic plants mainly collected in Eastern Rwanda ( national ParK of Akagera). these plants belong to variuos genera ( Acacia, Albizia, Anthocleista, Apodytes, Cassia, Cissampelos, Clematis, Dichrostachys, Fagara, Harrinsonia, Impatiens, Ipomoea, Kniphofia, Olea, Osyris, Parinari, Rhamnus, Rytigynia, Sesbania, Solanum, Strychnos, Thonningia, Tylophora, Ximenia). Previuosly no plant of this country had been chemically studied. [less ▲]

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See detailEtude spectrophotométrique et chromatographique des dérivés flavoniques et coumariniques de Solanum schimperianum ( Hochst ex A.Rich
Angenot, Luc ULg

in Plantes médicinales et phytothérapie (1969), 3(4), 243-254

Solanum schimperianum has been found on the pharmaceutical market as a falsification of Atropa belladonna. We have identified the main flavonoids ( astragalin, isoquercitrin, rutin, kaempferol-diglucoside ... [more ▼]

Solanum schimperianum has been found on the pharmaceutical market as a falsification of Atropa belladonna. We have identified the main flavonoids ( astragalin, isoquercitrin, rutin, kaempferol-diglucoside) and coumarin (aesculetin) derivatives and compared them with the content of other Solanacea used in pharmacy ( atropa, hyoscyamus and datura). [less ▲]

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