A5035144766- Natural product bioactivities and synthesis
- Phytochemistry and Biological Activities
- Essential Oils and Antimicrobial Activity
- Phytochemical Studies and Bioactivities
- Phytochemistry and Bioactive Compounds
- Traditional and Medicinal Uses of Annonaceae
- Insect Pest Control Strategies
- Plant biochemistry and biosynthesis
- Phytochemicals and Antioxidant Activities
- Phytochemical compounds biological activities
- Bioactive natural compounds
- Ethnobotanical and Medicinal Plants Studies
- Natural Antidiabetic Agents Studies
- African Botany and Ecology Studies
- Sesquiterpenes and Asteraceae Studies
- Moringa oleifera research and applications
- Alkaloids: synthesis and pharmacology
- Pharmacological Effects of Natural Compounds
- Chemical synthesis and alkaloids
- Piperaceae Chemical and Biological Studies
- Phytochemistry and Bioactivity Studies
- Biological Stains and Phytochemicals
- Insect and Pesticide Research
- Seed and Plant Biochemistry
- Bioactive Compounds and Antitumor Agents
Université de Dschang
2015-2024
Freie Universität Berlin
2013-2017
Università di Camerino
2011-2014
Université de Bourgogne
2005-2006
Université de Yaoundé I
1998-2003
International Center for Chemical and Biological Sciences
2003
University of Karachi
2003
Dioscorea bulbifera is an African medicinal plant used to treat microbial infections. In the present study, methanol extract, fractions (DBB1 and DBB2) six compounds isolated from bulbils of D. bulbifera, namely bafoudiosbulbins A (1), B (2), C (3), F (4), G (5) 2,7-dihydroxy-4-methoxyphenanthrene (6), were tested for their antimicrobial activities against Mycobacteria Gram-negative bacteria involving multidrug resistant (MDR) phenotypes expressing active efflux pumps. The microplate alamar...
Naturally occurring flavonoids have been reported to possess various pharmacological properties. The aim of this study was evaluate the antimicrobial and antioxidant activities MeOH extract from leaves Oncoba spinosa, a plant used for treatment syphilis, wounds sexual impotence.The prepared by maceration in methanol sequentially fractionated column chromatography. structures isolated compounds were elucidated on basis spectral studies comparison with published data. its evaluated their...
Coronavirus disease 2019 (COVID-19) is an ongoing pandemic instigated by Severe Acute Respiratory Syndrome 2 (SARS-CoV-2) which changed the daily train of world's population and cause several dead. Despite significant efforts made in developing vaccines therapeutic drugs, there currently no available effective treatment against this new coronavirus infection, hence need to continue research aimed at limiting progression virus. The present study has as objective carry out silico studies on...
Abstract The chemical composition of the essential oils obtained from seeds bush onion ( Afrostyrax lepidophyllus ) and tropical garlic tree Scorodophloeus zenkeri ), plants used as spices in traditional African cuisine, was determined by GC‐FID GC/MS analyses. Moreover, vitro biological properties oils, namely, cytotoxic, antioxidant, antimicrobial activities, were investigated MTT, DPPH . ABTS .+ scavenging, agar disc‐diffusion methods, respectively. Both composed mainly S‐containing...
Four previously unreported steroidal saponins, trifasciatosides A–D (1–4), three pairs of undescribed E–J (5a, b–7a, b) including acetylated ones, together with twelve known compounds were isolated from the n-butanol soluble fraction methanol extract Sansevieria trifasciata. Their structures elucidated on basis detailed spectroscopic analysis, 1H-NMR, 13C-NMR, 1H–1H correlated spectroscopy (COSY), heteronuclear single quantum coherence (HSQC), multiple bond connectivity (HMBC), total...
Medicinal plants are known as sources of potential antibacterial compounds including alkaloids. The aim the present study was to evaluate activities extract, fractions, and some secondary metabolites isolated from leaves Crinum glaucum A. Chev. (Amaryllidaceae). were performed with ethanol (EtOH) well ethyl acetate (EtOAc) n-butanol (n-BuOH) fractions. Repeated column chromatography fractions led isolation several their structures elucidated mainly by means extensive spectroscopic analysis...
The current research discusses the spectroscopic elucidation of structure and enzymatic activity in silico vitro fifteen known compounds, as well a new unidentified avenasterol derivative called 21-methylene-24-ethylidene lophenol, from genus Cassia .
Abstract The fumigant and contact toxicity of essential oil (EO) extracted from the leaves Callistemon viminalis its aromatized clay powder (ACP) was evaluated against adults Acanthoscelides obtectus Callosobruchus maculatus (Coleoptera: Bruchidae). results obtained for fumigation assays showed that C. seems to be more susceptible (LC 50 = 0.019 μl/cm 3 ) vapours than A. 0.011 after 12 h exposure. On other hand, (LD 0.133 μl/g) applied by on grains 0.170 2 days ACP also very toxic towards...