Literatura científica selecionada sobre o tema "Extraits aux solvants"
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Artigos de revistas sobre o assunto "Extraits aux solvants"
Tella, A. K., M. E. Isaac, D. S. Solomon, K. J. Tarhule, S. J. Nkwuda, J. Agashi e P. A. Ewache. "Effect of Different Onion Skin Extracts on Physicochemical, Microbial and Sensory Properties of Grilled Chicken". Nigerian Journal of Animal Production 49, n.º 4 (10 de fevereiro de 2023): 106–13. http://dx.doi.org/10.51791/njap.v49i4.3708.
Texto completo da fonteSalé Charles, Essomé, Ngoh Dooh Jules Patrice, Heu Alain, Ndogho Pegalepo Angèle, Ngatsi Zemko Patrice, Chewachong Godwill e Ambang Zachee. "Évaluation des activités antifongiques des extraits de graines de Thevetia peruviana contre Phytophthora colocasiae (Oomycètes) agent causal du mildiou du taro (Colocasia esculenta (L.) Schott) au Cameroun". Journal of Applied Biosciences 151 (31 de julho de 2020): 15584–97. http://dx.doi.org/10.35759/jabs.151.7.
Texto completo da fonteOuattara, Aboubacar, Konan Yao, Koffi Komoe, Wokapeu Blaise Kpan, Mamidou Witabouna Kone, Djakalia Ouattara e Sadibou Toure. "Teneur en Composés Phénoliques et Activités Antioxydantes de Sargassum fluitans et Sargassum natans, deux Algues Brunes Invasives des Côtes Ivoiriennes". European Scientific Journal, ESJ 18, n.º 33 (31 de outubro de 2022): 313. http://dx.doi.org/10.19044/esj.2022.v18n33p313.
Texto completo da fonteHaddouchi, Farah, Khadidja Zerhouni, Adel Sidi-Yekhelef e Tarik Mohammed Chaouche. "Évaluation de l’activité antimicrobienne de différents extraits d'Helichrysum stoechas subsp. rupestre". Bulletin de la Société Royale des Sciences de Liège, 2016, 152–59. http://dx.doi.org/10.25518/0037-9565.5894.
Texto completo da fonteDjamilatou, Zakari Seybou, Alfa Keita Djibo, Bakasso Sahabi e Sabo Haoua Seini. "Screening phytochimique, dosage des polyphénols et détermination de l’activité antioxydante de deux plantes antihypertensives du Niger". European Scientific Journal ESJ 17, n.º 17 (31 de maio de 2021). http://dx.doi.org/10.19044/esj.2021.v17n17p335.
Texto completo da fonteTeses / dissertações sobre o assunto "Extraits aux solvants"
Palu, Doreen. "Etude de la composition chimique d’extraits d’Ilex aquifolium Linné et de Calicotome villosa (Poiret) Link de Corse par RMN du carbone-13". Electronic Thesis or Diss., Corte, 2022. http://www.theses.fr/2022CORT0018.
Texto completo da fonteThe aim of this work was to determine chemical composition of wild growing corsican understudied plant species, with potential biological activities. This study was realized using the computerized NMR method developed over the past thirty years by the University of Corsica “Chimie et Biomasse” group, UMR CNRS “Sciences Pour l’environnement”. Identified secondary metabolites were then undertaken to evaluate their antimicrobial properties. As part of this study, we selected on the first place commun holly (Ilex aquifolium L.). After two successive column chromatography, hexane and dichloromethane leaves crude extracts and all chromatography fractions were analyzed by 13C NMR (GC(RI) and GC-MS sometimes) to allow the identification of eleven triterpens and α- and β-amyrin esters. Among identified compounds, ursolic acid and oleanolic acid were also quantified by 1H NMR in the dichloromethane crude extract using a reliable method developped and validated (accuracy, linearity precision of measurements). Ursolic acid accounted for 55.3% of the extract, followed by oleanolic acid, 20.8%. Evaluation of previous identified compounds antimicrobial activities has been performed in collaboration with « Biochimie et Biologie Moléculaire du Végétal » group (University of Corsica). Triterpen acids and chloramphenicol (reference antibiotic) displayed similar antibacterial activities against three Gram-positive bacteria, Staphylococcus aureus, Staphylococcus epidermidis and Bacillus cereus (MIC = 4 and 8 mg.L-1 vs. 2 and 4 mg.L-1). Moreover, dichloromethane and dichloromethane/ethyl acetate (50/50, v/v) berries extracts were submitted to successive column chromatography. Crude extracts and chromatography fractions 13C NMR spectra revealed presence of nine triterpens previously identidied, five phenolics derivatives, six monosaccharides and four lactones (menisdaurilide, aquilegiolide, dasycarponilide and 7-epi-griffonilide) were first time identified in berries holly extracts. On the second place, we determined chemical compositions of Calicotome villosa (Poir.) Link flowers and root extracts. 13C NMR analysis of dichloromethane and ethyl acetate flowers extracts and their chromatography fractions, allowed the identification of three flavonoids, five glycosyl flavonoids and four phenylpropanoids. We also studied chemical composition of a methanol root extract which has never been submitted to any chemical composition study. After successive column chromatography, eighteen compounds were identified by 13C NMR including sterols, flavonoids, a polyphenol and pterocarpans