Download or read book Investigation Phytochimique de plantes utilis es en m decine traditionnelle au Mozambique written by Daniel Agostinho and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Les travaux menés dans cette thèse s'inscrivent dans une démarche ethno-pharmacologique visant à valoriser des plantes utilisées traditionnellement en médecine au Mozambique. Cette étude a comme but principal d'apporter des éléments chimio taxonomiques concernant des espèces végétales peu décrites et de préciser la composition métabolique de parties de plante utilisées en médecine traditionnelle, pour aboutir potentiellement à de nouvelles molécules utilisables en thérapeutique. Le travail est ainsi découpé en trois parties distinctes, chacune portant sur une plante différente.La Partie 1présente l'étude phyto-chimique des racines sèches de Ptaeroxylon obliquum Radlk (Rutaceae). L'étude phyto-chimique de l'extrait chloroformique des racines de P.obliquum a permis l'isolement de cinq composés appartenant à la famille des coumarines ou de chromones dont un totalement original : un meroterpène de type chromone, le Ptaerobliquol. Les structures de ces composés ont été élucidées par différentes techniques analytiques de pointes (RMN, Spectrométrie de masse) et diffraction des rayons X.La Partie 2 porte sur l'étude phyto-chimique des écorces de tubercules de Pyrenacantha kaurabassana (Icacinaceae). Cette plante n'a été que très peu étudiée d'un point de vue phytochimique. Un criblage des métabolites présents a été réalisé, montrant la présence prépondérente de composés de la famille des quinones et des flavonoïdes. Le fractionnement de l'extrait acétate d'éthyle des écorces de tubercule a abouti à l'isolement et l'identification de 4 métabolites, dont 2 totalement originaux, appartenant à la famille des xanthones.Enfin la Partie 3 porte sur l'étude phytochimique des tiges de Monadenium lugardiae ou Euphorbia lugardiae (Euphorbiaceae). Le fractionnement de l'extrait chloroformique des tiges a permis l'isolement et l'identification de deux métabolites jamais décrits dans cette plante, le jolkinolide B, l'Hélioscopinolide F, conjointement avec la scopoletine.
Download or read book Enqu te ethnopharmacologique et tude phytochimique de plantes utilis es en m decine traditionelle polyn sienne written by Camille Quenon and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Selon un rapport de 1992 du Centre Polynésien des Sciences Humaines, la médecine traditionnelle polynésienne serait aussi fortement utilisée que la médecine conventionnelle (Grand, 2007). Pourtant cette pratique a été à ce jour peu étudiée. Cette enquête ethnopharmacologique, menée sur les îles de Raiatea et Tahaa (archipel de la Société), visait à inventorier les plantes utilisées dans les remèdes utilisés contre les maladies infectieuses, et à déterminer l'activité antimicrobienne de certains extraits méthanoliques de plantes par la mesure de leur CMI (concentration minimale inhibitrice). Cette enquête constitue l'une des premières réalisées aux Iles-Sous-le-Vent. L'effet synergique antibactérien de certaines associations d'espèce, par la méthode de l'échiquier, a été caractérisé (calcul de l'index FIC). La cytotoxicité a été mesurée sur la lignée cellulaire de carcinome hépatocellulaire (Hep-G2) par un test au MTT. Une espèce végétale, dont l'extrait dispose de propriété antimicrobienne, a fait l'objet d'une étude phytochimique : Syzygium malaccense. Pour la première fois, des composés appartenant à la famille des acides anacardiques / acides gingoliques, molécules connues pour leur propriété antimicrobienne, ont été isolé et identifié au moyen de technique chromatograhique, spectroscopique, de masse et par résonnance magnétique nucléaire (RNM). Une étude de la relation structure activité ou RSA de ces composés a été effectuée.
Download or read book Cover Crops in West Africa written by International Development Research Centre (Canada) and published by IDRC. This book was released on 1998 with total page 319 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cover Crops in West Africa Contributing to Sustainable Agriculture
Download or read book African Herbal Pharmacopoeia written by Thomas Brendler and published by Bernan Press(PA). This book was released on 2010 with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt: The African Herbal Pharmacopoeia (AfrHP) provides comprehensive, up to date botanical, commercial and phytochemical information on over fifty of the most important African medicinal plants. The technical data were made on plant samples sourced from across the continent. These monographs prepared by leading African scientists, have been reviewed by international experts. Additional data includes micro morphology of the plant material, distribution maps and TLC Chromatograms. These data are crucial for producers, collectors and traders in medicinal plants and extracts as well as researchers, manufacturers and practitioners. The scope, quality and standard of these herbal monographs are comparable to those prepared in Europe, North America and Asia. Whilst this is the very first edition, it is being proposed to proceed to a second edition, quickly, as more plant species will be covered.
Download or read book Traditional Medicinal Plants and Malaria written by Merlin Willcox and published by CRC Press. This book was released on 2004-06-28 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: Malaria is an increasing worldwide threat, with more than three hundred million infections and one million deaths every year. The worlds poorest are the worst affected, and many treat themselves with traditional herbal medicines. These are often more available and affordable, and sometimes are perceived as more effective than conventional antimala
Download or read book Medicinal and Aromatic Plants of the World Africa Volume 3 written by Mohamed Neffati and published by Springer. This book was released on 2017-09-07 with total page 415 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume in the series is devoted to Africa, a continent that possesses a vast treasure of medicinal plants and has produced some exclusive materials for the world market. This volume is expected to strengthen the medicinal plant sector in African countries by making comprehensive information on medicinal and aromatic plants available to policy-makers and entrepreneurs. It can be used to frame effective policies and create an environment conducive to the growth of the plant-based medicine industry, bringing economic benefit to African nations. It will help health organizations to improve the health of their people by using their own resources and a less expensive system of medicine, which is accepted by African society. It could also lead scientific communities to increase R&D activities in the field.
Download or read book Flora of Tropical East Africa Gentianaceae 2002 written by Sileshi Nemomissa and published by CRC Press. This book was released on 2002-06-01 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a comprehensive review of the genera of Gentianaceae, a family of flowering plants, found in tropical East Africa. It presents information on their character, occurrence, habitat, phenotypic variations and distribution of each of the species under these genera.
Download or read book Plants in Indigenous Medicine Diet written by Nina Lilian Etkin and published by Psychology Press. This book was released on 1986 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: This reference work aims to promote the biobehavioral focus for indigenous plant research by reviewing multidisciplinary perspectives in the evaluation of plants used in ethnomedicine and diet. Discussions include: biological and cultural parameters to illustrate the dynamics of plant selection and use in a variety of contexts; implications of such behaviors on human health; and highlights special cases of plants which, regardless of their contemporary notoriety, are better understood through objective review of the available data and sensitivity to cultural and ecological dimensions of human-plant interactions.
Download or read book Toxicological Survey of African Medicinal Plants written by Victor Kuete and published by Elsevier. This book was released on 2014-05-30 with total page 742 pages. Available in PDF, EPUB and Kindle. Book excerpt: Toxicological Survey of African Medicinal Plants provides a detailed overview of toxicological studies relating to traditionally used medicinal plants in Africa, with special emphasis on the methodologies and tools used for data collection and interpretation. The book considers the physical parameters of these plants and their effect upon various areas of the body and human health, including chapters dedicated to genotoxicity, hepatotoxicity, nephrotoxicity, cardiotoxicity, neurotoxicity, and specific organs and systems.Following this discussion of the effects of medicinal plants is a critical review of the guidelines and methods in use for toxicological research as well as the state of toxicology studies in Africa. With up-to-date research provided by a team of experts, Toxicological Survey of African Medicinal Plants is an invaluable resource for researchers and students involved in pharmacology, toxicology, phytochemistry, medicine, pharmacognosy, and pharmaceutical biology. - Offers a critical review of the methods used in toxicological survey of medicinal plants - Provides up-to-date toxicological data on African medicinal plants and families - Serves as a resource tool for students and scientists in the various areas of toxicology
Download or read book Ethnoecology written by Virginia D. Nazarea and published by University of Arizona Press. This book was released on 1999-01-01 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: The re-emerging field of ethnoecology offers a promising way to document and analyze human-environment interactions. Case studies by international experts explore the varied views of scholars on the human dimension of conservation and the different views of local peoples regarding their own environments. Filled with peoples' voices from North and South America, Africa, and Asia, these cases cover a range of issues: natural resource conservation and sustainable development, the relationship between local knowledge and biodiversity, the role of the commons in development, and the importance of diversity and equity in environmental management. Ethnoecology: Situated Knowledge/Located Lives is intended for a wide range of specialists not only in social and natural sciences but also in agricultural studies. It conveys the overriding importance of this powerful methodological approach in providing insiders' perspectives on their environments and how they manage them.
Download or read book Chemistry The Key to our Sustainable Future written by Minu Gupta Bhowon and published by Springer Science & Business Media. This book was released on 2013-11-08 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chemistry: The Key to our Sustainable Future is a collection of selected contributed papers by participants of the International Conference on Pure and Applied Chemistry (ICPAC 2012) on the theme of “Chemistry: The Key for our Future” held in Mauritius in July 2012. In light of the significant contribution of chemistry to benefit of mankind, this book is a collection of recent results generated from research in chemistry and interdisciplinary areas. It covers topics ranging from nanotechnology, natural product chemistry to analytical and environmental chemistry. Chemistry: The Key to our Sustainable Future is written for graduates, postgraduates, researchers in industry and academia who have an interest in the fields ranging from fundamental to applied chemistry.
Download or read book Medicinal and Aromatic Plants of Indian Ocean Islands written by Ameenah Gurib-Fakim and published by Medpharm Gmbh Scientific Pub. This book was released on 2004-01-01 with total page 567 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a scientific evaluation of some 350 medicinal and aromatic plants of Madagascar, Comoros, the Seychelles and the Mascarene islands. It concentrates on those endemic plants, which are now rare and less well-known. This volume combines a rich source of ancient local biodiversity and knowledge with a western approach to preserving both, knowledge and environment. An authoritative and fascinating reference work, which captures the interest in traditional medicine as well as the potential for the development of new drugs.
Download or read book Lemurs of Madagascar written by Russell A. Mittermeier and published by Conservation International Tropical Pocket Guide Series. This book was released on 2009 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Laminated identification guide illustrating 65 species of extant nocturnal prosimians in Madagascar.
Download or read book WHO Monographs on Selected Medicinal Plants written by World Health Organization and published by World Health Organization. This book was released on 1999 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the second volume in a series of monographs which are intended to promote information exchange and international harmonised standards for the quality control and use of herbal medicines. It contains scientific information on 30 selected plants, and each entry includes a pharmacopoeial summary for quality assurance purposes, information on its clinical application and sections on contraindications, pharmacology, safety issues, and dosage forms. It provides two cumulative indexes with entries in alphabetical order by plant name and according to the plant material of interest.
Download or read book Diversity and Classification of Flowering Plants written by Armen Leonovich Takhtadzhi͡an and published by Columbia University Press. This book was released on 1997 with total page 662 pages. Available in PDF, EPUB and Kindle. Book excerpt: The culmination of more than fifty years of research by the foremost living expert on plant classification, Diversity and Classification of Flowering Plants is an important contribution to the field of plant taxonomy. In the last decade, the system of classifying plants has been thoroughly revised. Instead of describing every individual family, Takhtajan includes descriptions in keys to families, which he calls "descriptive keys." The advantage of descriptive keys is that they give both the characteristic features of the families and their differences. The delimitation of families and orders drastically differs from the one accepted by the Englerian school and from the one accepted in Arthur Cronquist's system. Takhtajan favors the smaller, more natural families and orders, which are more coherent and better-defined, where characters are easily grasped, and which are more suitable for information retrieval and phylogenetic studies, including cladistic analysis (because it reduces polymorphic codings).
Download or read book Bioactive Compounds from Plants written by Derek J. Chadwick and published by John Wiley & Sons. This book was released on 2008-04-30 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: Useful throughout history for their medical as well as other benefits, plant-derived compounds have gained particular importance recently, due to environmental factors. The isolation and characterization of plant products, the identification of their role in the plant, and ways of synthesizing identical compounds or more potent analogues are covered. Also includes methods of culturing plant tissues and genetic engineering as a means of increasing the yield of desired substances from plants. Special emphasis is placed on plants previously unknown to Western scientists.
Download or read book Natural Toxins and Poisonous Plants of Mauritius written by Ameenah Gurib-Fakim and published by . This book was released on 1999 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
