97 results for “Antimicrobial activity”

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Research ArticleOpen accessPhrase in the titlePreparing and Antimicrobial Activity of Hydrogel with Biosynthesized Silver Nanoparticles Using Carex Meyeriana KunthQihui Shen, Henan Zhu, Hongli Zhou et al.In this study, a simple and environmentally stable method was developed to synthesize silver Nanoparticles (AgNPs). In addition, carex meyeriana kunth was used as a reducing and stabilizing agent with good bacterial inhibitory effects against Escherichia coli (E. coli) and Bacillus subtilis at very low doses. AgNPs were added to the Polyvinyl Alcohol (PVA) solution as an antibacterial agent and … …American Journal of Biochemistry and Biotechnology, Vol. 19, Issue 2 · 4 May 2023 · 5,724 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsStudy of Ageratum conyzoides L. (Asteraceae) Phytochemical Composition as Quorum-sensing Inhibitors to Combat Antibiotic-resistant Bacterial InfectionsEli Compaoré, Lassané Ouedraogo, Ablassé Rouamba et al.The rise of antibiotic-resistant bacterial infections has intensified the search for plant-derived quorum-sensing (QS) inhibitors as alternative therapeutic strategies. Ageratum conyzoides L. has a long history of traditional use as an antimicrobial agent against multidrug-resistant pathogens, yet the phytochemical basis of its QS-inhibitory activity remains incompletely characterized. This study aimed to investigate the phytochemical composition of A. conyzoides and evaluate … …OnLine Journal of Biological Sciences, Vol. 26, Issue 1 · 3 Apr 2026 · 1,772 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsOptimization of Hydrodistillation Extraction by Response Surface Methodology and Evaluation of the Antioxidant and Antimicrobial Activities of Essential Oils from Phragmites communis (Cav) TrinXin-Tong Zou, Hong-Yuan Ma, Yu-He Li et al.The principal objectives of this study encompass three distinct aspects: firstly, to streamline the extraction process of Phragmites communis (Cav) Trin essential oil; secondly, to systematically analyze the essential oil’s chemical composition; and finally, to evaluate biological activity. Through the system optimization experiment, the optimal extraction process was determined: the crushing size was set to 10 mesh, the total solid-liquid … …American Journal of Biochemistry and Biotechnology, Vol. 21, Issue 3 · 6 Jan 2026 · 2,315 accessesView PDF Cite

Literature ReviewOpen accessIn the keywordsOptimization of Extraction of Cannabinoids and Flavonoids Substances from Influence Cannabis sp. and their Biological Activities before and after DecarboxylationOlga Kronusová, Michala Piklová, Kristýna Šírová et al.Inflorescence of eight different varieties of Cannabis sp. (3 hemp varieties and 5 medical cannabis varieties) were subjected to extraction with n-hexane or ethanol as representatives of non-polar and polar solvents. Crude extracts were either used directly or after decarboxylation of cannabis acids for measurement of selected biological activities-cytotoxicity against carcinogenic line B16 (musculus skin melanoma cells), cytotoxicity against Human … …American Journal of Applied Sciences, Vol. 19, Issue 1 · 26 May 2022 · 6,735 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsAntifungal Activity of Jatropha Curcas Linn on Candida Albicans and Candida Tropicalis Associated with Neonatal and Infantile Infections in Yola, NigeriaJames Hamuel Doughari, Martha AbrahamOne hundred and eighty (180) stool samples collected of neonates and infants from three selected health facilities in Yola, Adamawa State Nigeria. The samples were subjected to both microscopic, biochemical test and cultural identification. Bromocresol green agar and Germ tube test was used to identify Candida species. Culture of the stool samples on SDA yielded 32 yeast cells with Candida … …American Journal of Agricultural and Biological Sciences, Vol. 16, Issue 1 · 7 Sep 2021 · 7,533 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsSafe Ulvan Silver Nanoparticles Composite Films for Active Food PackagingHadear Hanie AminProtecting food from the corruption caused by different microbes is a big problem, as we need safe methods for food packaging. In this study, Ulvan (U), edible sulfated polysaccharide extracted from Ulva lactuca, was mediated for the first time non-toxic biosynthesized silver nanoparticles (Ag-NPs) to produce new and safe bio-nanocomposite films called (U/Ag-NPs) films for active food packaging. Ulvan was … …American Journal of Biochemistry and Biotechnology, Vol. 17, Issue 1 · 28 Jan 2021 · 7,740 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsIsolation and Identification of Staphylococcus epidermidis S14 Screening Extracellular Antimicrobial MetabolitesJie Zhang, Han Jiang, Jiaxin Jiang, Guangrong HuangTotal 24 isolates with antimicrobial activity against Staphylococcus aureus, Escherichia coli, Bacillus cereus and Shigella castellani, out of 259 strains, were isolated from the internal of seven marine fishes. The extracellular metabolites of strain S14, isolated from the internal of shark, showed stronger inhibition against the four tested bacteria, including G- and G+ bacteria. Based on the 16S rDNA the … …American Journal of Biochemistry and Biotechnology, Vol. 12, Issue 1 · 19 Mar 2016 · 7,567 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsLIQUID AND VAPOUR PHASE ANTIBACTERIAL ACTIVITY OF EUCALYPTUS GLOBULUS ESSENTIAL OIL = SUSCEPTIBILITY OF SELECTED RESPIRATORY TRACT PATHOGENSBoukhatem Mohamed Nadjib, Ferhat Mohamed Amine, Kameli Abdelkrim et al.Essential Oils (EO) produced by medicinal plants have been traditionally used for respiratory tract infections and are used nowadays as ethical medicines for colds. Although several studies of Eucalyptus Globulus Labill. Essential Oil (EGEO) have been reported, there are no reports describing vapour activity of EGEO against bacterial respiratory tract pathogens. The aim of this study was to test the … …American Journal of Infectious Diseases, Vol. 10, Issue 3 · 3 Sep 2014 · 13,311 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsCOMPARATIVE STUDY OF IN VITRO ANTIMICROBIAL ACTIVITIES OF FOENICULUM VULGARE MILL. (UMBELLIFERAE) EXTRACTKhadija Dahak, Moha TaourirteThe importance to push scientifically the investigations on the organic extracts of the plants aromatic as potential source of new antimicrobial compounds comes from the traditional use of the plants. However, the consumption of these natural products requires à thorough research in this field. The antimicrobial effect of organic and aqueous leaves extracts of Foeniculum vulgare Mill., However, which makes … …OnLine Journal of Biological Sciences, Vol. 13, Issue 4 · 12 Oct 2013 · 8,671 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsAntimicrobial Properties of the Essential Oil of Juniperus communis (L.) Growing Wild in East Part of KosovoArben Haziri, Fatmir Faiku, Arben Mehmeti et al.Antimicrobial activity and chemical composition of the essential oil of Juniperus communis (L.), originated from east part of Kosova, was investigated. The essential oil from berries of J. communis (L.), obtained by hydro-distillation was analyzed by GC and GC-MS. Antimicrobial properties of the essential oil of J. communis (L.) are investigated and results are submitted for their activities against Staphylococcus … …American Journal of Pharmacology and Toxicology, Vol. 8, Issue 3 · 23 Sep 2013 · 9,923 accessesView PDF Cite