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Dive into the research topics where Jean Lejoly is active.

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Featured researches published by Jean Lejoly.


Pharmaceutical Biology | 1990

Cultivation of Holarrhena floribunda for conessine production in Burkina Faso.

O A Levy; Pierre Duez; Jean Lejoly; Sylvie Chamart; Mamadou Sawadogo; Michel Hanocq

AbstractThe cultivation, conessine content and harvesting methodology for Holarrhena floribunda were investigated. Allometric measurements are proposed as prediction tools for estimation of trunk total productions of bark and conessine. A linear relationship found between stem diameter and bark conessine content allowed the establishment of log-log correlations between trunk circumference and trunk production of bark and conessine. Harvesting of a five years old culture by a coppicing method could be estimated at 976 kg/ha of stem bark and 7.8 kg/ha of conessine. Stems of diameter < 0.5 cm present little interest for alkaloid production and should be discarded.


Agricultures et développement urbain en Afrique subsaharienne : environnement et enjeux sanitaires | 2008

Mise en valeur des bas-fonds à Yaoundé, système de production, savoir-faire traditionnel et potentialités d’une agriculture urbaine et périurbaine en développement

Prosper Nguegang Asaa; Laurent Parrot; Jean Lejoly; Véronique Joiris; Aboubakar Njoya; Ludovic Temple; Françoise Assogba-Komlan; Rémi Kahane; Maty Ba Diao; Michel Havard


Annales pharmaceutiques françaises | 1987

Etude de la variation en conessine des écorces de branches de Holarrhena floribunda au Burkina Faso.

Pierre Duez; Sylvie Chamart; Jean Lejoly; Michel Hanocq; B Zeba; Mamadou Sawadogo; Pierre Guissou; Léopold Molle


Tropicultura | 1986

Etude des stations naturelles et des conditions de culture de Rauvolfia vomitoria Afz au Burkina Faso en relation avec les teneurs en alcaloïdes

Pierre Duez; Sylvie Chamart; Jean Lejoly; Michel Hanocq; B Zeba; Mamadou Sawadogo; Innocent Pierre Guissou; Léopold Molle


Tropicultura | 1986

Essai de culture du Datura innoxia au Burkina Faso : évolution des teneurs en hyoscine et hyoscyamine au cours de la croissance

Christian Dame; Pierre Duez; Innocent Pierre Guissou; Mamadou Sawadogo; Sylvie Chamart; Michel Hanocq; Jean Lejoly; Léopold Molle; B Zeba


Archive | 2013

Use of medicinal plants around the moutain forest of Kahuzi-Biega National park, site of the world heritage, DR Congo

Chantal Shalukoma Ndukura; Caroline Stevigny; Pierre Duez; Jan Bogaert; Véronique Joiris; Jean Lejoly; Charles De Cannière; Célestin Pongombo Shongo; Marjolein Visser


Colloque International "La valorisation de la biodiversité dans la perspective du développement local durable" | 2004

Le savoir-faire traditionnel en matière de plantes aromatiques et médicinales (PAM) des pays du pourtour de la Méditerranée sur Internet, une composante du projet pilote de la filère PAM du projet Euromed Heritage II «Filière Innovante: Cas des programmes PHARMEL et PLAMENET

Pierre Duez; Jean Lejoly


Archive | 1997

Medicinal plants sub-sector review - Pharmacopoeia promoting programme: Preparatory Study

R. Bukenya-Ziraba; P. Doenges; Pierre Duez; Jean Lejoly; J. Ogwal-Okeng


Médecine traditionnelle et pharmacopée (Bulletin de liaison) | 1990

Contenu en cucurbitine de Cucurbita spp cultivées au Burkina Faso

Olivier Lévy; Pierre Duez; Sylvie Chamart; Jean Lejoly; Michel Hanocq; Mamadou Sawadogo


International Journal of Crude Drug Research | 1990

Cultivation of Holarrhena floribunda for conessine production in Burkina Faso: allometric relations

O A Levy; Pierre Duez; Sylvie Chamart; Jean Lejoly; Mamadou Sawadogo; Michel Hanocq

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Michel Hanocq

Université libre de Bruxelles

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Sylvie Chamart

Université libre de Bruxelles

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Mamadou Sawadogo

Centre national de la recherche scientifique

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Léopold Molle

Université libre de Bruxelles

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O A Levy

Université libre de Bruxelles

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Caroline Stevigny

Université libre de Bruxelles

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Marjolein Visser

Université libre de Bruxelles

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