Academic literature on the topic 'Métabolites secondaires'
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Journal articles on the topic "Métabolites secondaires"
Kouamé, Thomas Konan, Sorho Siaka, Amian Brise Benjamin Kassi, and Yaya Soro. "Détermination des teneurs en polyphénols totaux, flavonoïdes totaux et tanins de jeunes feuilles non encore ouvertes de Piliostigma thonningii (Caesalpiniaceae)." International Journal of Biological and Chemical Sciences 15, no. 1 (April 21, 2021): 97–105. http://dx.doi.org/10.4314/ijbcs.v15i1.9.
Full textKoto-Te-Nyiwa Ngbolua, Jean-Paul. "Bio-activité et Etude phytochimique des extraits des Feuilles de Jatropha podagrica Hook. et de Euphorbia hirta L. (Euphorbiaceae)." Revue Congolaise des Sciences & Technologies 3, no. 4 (December 31, 2024): 571–86. https://doi.org/10.59228/rcst.024.v3.i4.123.
Full textHoste, Hervé, Denis Gautier, Laurence Sagot, Barbara Fança, and Vincent Niderkorn. "Des plantes bioactives pour répondre aux nouvelles attentes de l’élevage des Ruminants." Le Nouveau Praticien Vétérinaire élevages & santé 12, no. 48 (2021): 23–29. http://dx.doi.org/10.1051/npvelsa/48023.
Full textBernard-Dagan, C. "Les substances de réserve du Pin maritime: Rôle éventuel des métabolites secondaires." Bulletin de la Société Botanique de France. Actualités Botaniques 135, no. 1 (January 1988): 25–40. http://dx.doi.org/10.1080/01811789.1988.10826883.
Full textArpin, N., and M. L. Bouillant. "Métabolites secondaires fongiques : diversité de structures mais unité de fonction, la protection." Cryptogamie. Mycologie 9, no. 3 (1988): 267–76. http://dx.doi.org/10.5962/p.354277.
Full textBouyahya, A., A. Et-Touys, A. Khouchlaa, A. El-Baaboua, A. Benjouad, S. Amzazi, N. Dakka, and Y. Bakri. "Notes ethnobotaniques et phytopharmacologiques sur Inula viscosa." Phytothérapie 16, S1 (December 2018): S263—S268. http://dx.doi.org/10.3166/phyto-2019-0157.
Full textGérardin, Pauline, Clément Fritsch, Sylvain Cosgun, Maree Brennan, Stéphane Dumarçay, Francis Colin, and Philippe Gérardin. "Effet de la hauteur de prélèvement sur la composition quantitative et qualitative des polyphénols de l’écorce d’Abies alba Mill." Revue forestière française 72, no. 5 (October 31, 2020): 411–23. http://dx.doi.org/10.20870/revforfr.2020.5338.
Full textBouyahya, A., Y. Bakri, A. Et-Touys, A. Talbaoui, A. Khouchlaa, S. Charfi, J. Abrini, and N. Dakka. "Résistance aux antibiotiques et mécanismes d’action des huiles essentielles contre les bactéries." Phytothérapie 16, S1 (December 2018): S173—S183. http://dx.doi.org/10.3166/phyto-2019-0147.
Full textHervé Narcisse, Bayaga, Guedje Nicole Marie, Tabi Omgba Yves, Pola Yissibi Emilienne, Njinkio Nono Borgia Legrand, Assong Elombat Danielle Cynthia, Fokunang charles, and Ntsama Essomba Claudine. "Pouvoir antibactérien des extraits aqueux et hydroéthanolique du mélange d’écorces de tronc d’Albizia gummifera (J.F. Gmel.) C.A. Sm et Spathodea campanulata P.Beauv." Journal of Applied Biosciences 154 (October 31, 2020): 15881–87. http://dx.doi.org/10.35759/jabs.154.5.
Full textMaguirgue, Kakesse, Honoré Wangso, Jacques-Brice S. Oksom, Issakou Bakaranga-Via, Ngam-Asra Nadjioroum, and Brahim Boy Otchom. "Evaluation phytochimique, potentiels antioxydants et anti-inflammatoiresin vitro des extraits des feuilles de Commelina benghalensis Linn. (Commelinaceae)." International Journal of Biological and Chemical Sciences 16, no. 6 (March 9, 2023): 2673–84. http://dx.doi.org/10.4314/ijbcs.v16i6.17.
Full textDissertations / Theses on the topic "Métabolites secondaires"
Simon-Levert, Annabel. "Métabolites secondaires d'origine marine : de l'écologie à la pharmacologie." Perpignan, 2007. http://www.theses.fr/2007PERP0773.
Full textThe marine environment is a highly competitive medium. Production of "anti" agents (antibacterial,antifungic, antiproliferative. . . ) allow many organisms to preserve their surface from colonization. Secondarymetabolites, selected during many years of evolution for their effectiveness, are involved in chemicalprotection. The action of these molecules is often original and unique for biochemical processes, making this of great interest to pharmacology. In this thesis, we studied twenty secondary metabolites, belonging to three chemical families andisolated from three organisms (the cyanobacteria Lyngby majuscula and the ascidians Cystodytesdellechiajei and Aplidium aff. Densum). We demonstrated that these molecules took part in the in situdefense of the producer organisms. We then evaluated their antiproliferative activities on sea urchin eggs, pathogenic bacteria and cancerous cells and studied the mode of action
Berlinck, Roberto Gomes de Souza. "Alcaloïdes guanidiniques et autres métabolites secondaires de Crambe crambe Thiele." Doctoral thesis, Universite Libre de Bruxelles, 1992. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209014.
Full textCachet, Nadja. "Métabolites secondaires d'invertébrés marins et biosynthèse in vivo d'alcaloïdes d'Agelas oroides." Nice, 2009. http://www.theses.fr/2009NICE4072.
Full textOngoing research of the Marine Natural Products group of the LCMBA (UMR 6001 CNRS-UNSA) focus on the isolation and the characterization of new bioactive metabolites isolated from marine invertebrates (mostly sponges and ch=nidarians). According to the interest of these original compounds, their valorization may concern different fields such as therapeutics, biosu=ynthesis and marine ecology. This manuscript presents our works on the two marine sponfes Pandaros acanthifolium and Angelas oroides, and on the two cnidarians Astroides calycularis and Parazoanthus axinellae. P. Acanthifolium, which has been poorly studied, allowed us to isolate a new family of stereoidal saponins. We also characterized orthidines and a new aplysinopsin, isolated for the first time from A. Calycularis. Finally, we described a new family of alkaloids, isolated from P. Axinellae. Based on the chemical profiles of P. Axinellae, this new family allowed us to distinguish two morphotypes. A. Oroides was selected as a model in the elaboration of a new in vivo biosynthesis protocol of pyrrole-2-aminoimidazole alkaloids (P2AI). These studies confirm the incorporation of proline in P2AI biosynthetized by A. Oroides
Salmoun, Mostafa. "Contribution à l'étude des métabolites secondaires d'éponges des genres Hyrtios et Haliclona." Doctoral thesis, Universite Libre de Bruxelles, 2002. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/211409.
Full textGoudou, Francesca. "Caractérisation de métabolites secondaires isolés des branchies symbiotiques du bivalve Codakia orbicularis." Thesis, Antilles, 2017. http://www.theses.fr/2017ANTI0105/document.
Full textCodakia orbicularis is a bivalve mollusc belonging to the family Lucinidae and establishing symbiosis with sulfooxidizing bacteria (symbionts) within its gills. In the hypothesis that any symbiosis requires a regulation by molecules of dialogue, an exhaustive chemical study could lead to the demonstration of the metabolites involved. The work of this manuscript focuses on the isolation of secondary metabolites from the gills of this bivalve and on the evaluation of the antibacterial activity of the isolated molecules. Twelve compounds were isolated from the gills of Codakia orbicularis and their structures were determined by the usual spectroscopic methods. Of these molecules, only one is new and has been named orbicularisin. It presents an indolone spirotetracyclic skeleton unpublished. Among the isolated molecules, only four of them have antibacterial activity, namely sulfur S8, 4-hydroxybenzaldehyde and two monoglycerolipids. Orbicularisin has been shown to be inactive against a panel of cancer cell lines and kinases. The new skeleton of orbicularisin could lead to a new family of molecules by organic synthesis and thus increase the molecular diversity around this original motif. It will also be interesting to determine the origin of the isolated molecules and know their involvement (s) in the regulation of the bivalve symbionts. The chemical results obtained on C. orbicularis and on Lucinidae in general are interesting because the coastal species belonging to bivalves have been little exploited in chemistry to date
Ouedraogo, Noufou. "Études phytochimique et biologique des métabolites secondaires de Pterocarpus erinaceus poir (fabaceae)." Thesis, Lyon 1, 2012. http://www.theses.fr/2012LYO10094.
Full textPterocarpus erinaceus Poir. (Fabaceae) is a medicinal plant used in the treatment of several diseases including diseases inflammatory component in Burkina Faso. The leaves, stem and roots are used as a drug in the treatment of skin diseases, inflammation, ulcer, rheumatism, dysentery, malaria. The aim of this study was to carry out phytochemical and pharmacological studies on extracts of Pterocarpus erinaceus Poir. (Fabaceae) to evaluate the safety and efficacy of this plant to obtain the data for the development of a drug. Phytochemical study has been performed using chromatographic methods (TLC, SPE, CC, VLC, MPLC, HPLC) and spectroscopic (1D and 2D NMR). This study has been leading to isolated 18 molecules including 14 identified namely friedelin, lupeol, epicatechin, rutin, luteolin, quercetin-3-O-sophorosid, kaempferol-3-O-sophorosid, quercetin-3-O-β-glucose, stigmasterol, 3α-hydroxyfriedelan-2-on, α-sophoradiol, maltol-6-O-apiofuranosideglucopyranoside. The test on acute toxicity showed that the decoction of the leaves (DECFEU), stem (DECEC), roots (DECRA) and methanol extracts of leaves (MeOH K), stem bark (MeOH B) are considered slightly toxic substances according to the toxicity scale of Hodge and Sterner and WHO. The anti-inflammatory, analgesic and antipyretic extracts from the stem bark, leaves and roots have been validated en animal models. The results obtained in vitro test (antioxidant test, tests on the inhibition of the production of cellular TNF α and nitrite, lipid peroxidation and lipoxygénase) showed that the extracts exhibited effects, especially the methanol extract stem bark (MeOH B) which has the best antioxidant power (ARP = 5; TEAC = 9) and the strongest inhibition of lipid peroxidation (37.25 %) and lipoxygénase (97.69 %). However the methanol extract of leaves (MeOH K) presented strong inhibition at a concentration of 50 μg/mL on the production of TNF α (37.35 % and 30 %) and NO (95 % and 50 %) in the macrophages cultures active by LPS and LPS/INF-γ
Davioud-Charvet, Élisabeth. "Le hairy root : source de métabolites secondaires : la cucumopine : les alcaloi͏̈des indoliques." Paris 11, 1988. http://www.theses.fr/1988PA114830.
Full textBoulanger, Anna. "Recherche de métabolites secondaires marins, d'intêret pharmacologique : étude structurale de cyclodepsipeptides naturels." Perpignan, 1994. http://www.theses.fr/1994PERP0179.
Full textBensemhoun, Julia. "Isolement et identification de métabolites secondaires extraits d’organismes marins de l’Océan Indien." Aix-Marseille 3, 2008. http://www.theses.fr/2008AIX30004.
Full textThe Chemists are interested more and more in marine organisms deprived of mechanical protection (shell. . . ) whose survival depends on their capacity to emit repulsive substances, even poisons. Sponges, ascidians and soft corals have produced a wide variety of biologically active (so biomedical interest) and structurally unique metabolites (often with complex structures). Our work concerned essentially the isolation and the identification of secondary metabolites isolated from five marine sponges and one ascidia of Madagascar as well as a soft coral collected in Reunion Island. According to the literature, among the seven marine organisms selected, six had never been studied before. Thus, after extraction and fractionation using various chromatographic methods (exclusion, reverse phase. . . ), we have isolated 20 compounds which have been identified using spectroscopic techniques (NMR, MS…). Among these 20 compounds, 13 are known but first reported in our marine organisms and 7 are new compounds including Ptilomycalin D, an epimer and a diastereoisomer of the Plakortide N, the Flexusines A, B and C, and an epimukulol
Valls, Robert. "Séparation, identification, étude spectroscopique de métabolites secondaires d'algues brunes (Cystoseiracées) : dosage, variations, chimiotaxonomie." Aix-Marseille 3, 1993. http://www.theses.fr/1993AIX30078.
Full textBooks on the topic "Métabolites secondaires"
Renaud, Jean-Marc. Isolement et identification de métabolites secondaires et phytotoxiques d'Eutypa armeniacae. [S.l.]: [s.n.], 1985.
Find full textHerbert, R. B. The biosynthesis of secondary metabolites. 2nd ed. London: Chapman and Hall, 1989.
Find full textHerbert, R. B. The biosynthesis of secondary metabolites. 2nd ed. London: Chapman and Hall, 1989.
Find full textTrabelsi, Dhekra. Les métabolites secondaires du Citrus aurantium var amara. Éditions universitaires européennes, 2021.
Find full textHerbert, R. B. Biosynthesis of Secondary Metabolites. Springer London, Limited, 2012.
Find full textDictionary of plants containing secondary metabolites. London: Taylor & Francis, 1991.
Find full textBook chapters on the topic "Métabolites secondaires"
"Métabolites secondaires des lichens." In Lichens du Québec nordique, 33–34. Les Presses de l’Université de Laval, 2024. https://doi.org/10.1515/9782763756295-008.
Full text"Métabolites secondaires des lichens." In Lichens du Québec nordique, 33–34. Presses de l'Université Laval, 2024. https://doi.org/10.2307/jj.22764265.10.
Full textNTALLI, Nikoletta, and Pierluigi CABONI. "Mode d’action des métabolites végétaux dans la lutte contre les nématodes à galles." In Biocontrôle des maladies des plantes, 83–97. ISTE Group, 2024. http://dx.doi.org/10.51926/iste.9098.ch4.
Full textBermudez-Torres, Kalina, Luc Legal, and François Lieutier. "Chapitre 19. Exploitation des métabolites secondaires de la plante hôte." In Interactions insectes-plantes, 279–94. IRD Éditions, 2013. http://dx.doi.org/10.4000/books.irdeditions.22458.
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