The purpose of the study was to determine the chemical composition and antibacterial activity of Moldenke essential oils (EOs) collected in different regions of Angola. Antibacterial activity was evaluated using the agar wells technique and vapour phase test. Analysis of the oils by GC/MS identified thirty-five components representing 67.5 to 100% of the total oils. Monoterpene hydrocarbons were the most prevalent compounds, followed by oxygenated monoterpenes. The content of the compounds varied according to the samples. The main components were Limonene, Piperitenone, Neral, Citral, Elemol, p-cymene, Transtagetone, and Artemisia ketone. Only one of the eleven samples contained Verbenone as the majority compound. In the vapour phase test, a single oil was the most effective against all the pathogens studied. The principal component analysis (PCA) and hierarchical cluster analysis (HCA) of components of the selected EOs and inhibition zone diameter values of agar wells technique allowed us to identify a variability between the plants from the two provinces, but also intraspecific variability between sub-groups within a population. Each group of essential oils constituted a chemotype responsible for their bacterial inhibition capacity. The results presented here suggest that Angolan Moldenke has antibacterial properties and could be a potential source of antimicrobial agents for the pharmaceutical and food industry.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7795161 | PMC |
| http://dx.doi.org/10.3390/molecules26010155 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Multifunctional electrospun nanofiber films of polyacrylonitrile and polyvinyl alcohol incorporating rhamnose and therapeutic agents for enhanced healing of infected burn wounds.
J Biomater Sci Polym Ed
January 2025
Department of Microbiology, University of Central Punjab, Lahore, Pakistan.
Infected burn wounds present significant clinical challenges due to delayed healing and risk of infection, necessitating advanced treatments that offer both antimicrobial and regenerative properties. This study aimed to develop and evaluate multifunctional electrospun nanofiber films incorporating rhamnose (as an angiogenic agent) and therapeutic agents, namely fluticasone, mupirocin, ciprofloxacin, and silver sulfadiazine, for the enhanced healing of infected burn wounds. Nanofibers containing rhamnose, polyacrylonitrile, polyvinyl alcohol and therapeutic agents were fabricated electrospinning.
View Article and Find Full Text PDFChemical characterization of Eucalyptus (Eucalyptus globulus) leaf essential oil and evaluation of its antifungal, antibacterial and antioxidant activities.
Cell Mol Biol (Noisy-le-grand)
January 2025
Laboratory of Cellular Toxicology, Faculty of Science, Department of Biology, Badji Mokhtar University, Annaba, Algeria.
Article Synopsis
- The study analyzes essential oil extracted from dry Eucalyptus globulus leaves, focusing on its chemical composition and potential health benefits.
- The oil consists of 20 identified compounds, primarily linalool, and exhibits antifungal properties against Fusarium roseum and antibacterial effects against Pseudomonas savastanoi.
- While it shows moderate antioxidant activity, it differs from typical eucalyptus oils by being a linalool chemotype rather than eucalyptol-dominant.
Mechanisms and implications of antibiotic resistance in gram-positive bacterial strains.
Cell Mol Biol (Noisy-le-grand)
January 2025
Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia.
Antibiotics play a fundamental role in protecting millions of lives from infectious diseases. However, an important drawback of antibiotic treatment is that each advancement was followed by the development of resistance. This is due to the fact that the majority of pathogenic bacteria are capable of becoming resistant to a number of antimicrobial agents.
View Article and Find Full Text PDFAntimicrobial activity of Enterococcus-derived bacteriocins against multidrug-resistant Pseudomonas aeruginosa.
Cell Mol Biol (Noisy-le-grand)
January 2025
Department Medical Laboratory Technology, College of Medical Technology, University of Al-Farahidi, Baghdad, Iraq.
Article Synopsis
- Pseudomonas aeruginosa is problematic in healthcare due to its high antibiotic resistance, highlighting the need for new antimicrobial solutions.
- A study focused on isolating a new bacteriocin from Enterococcus faecium found in stool samples, which showed promise against multidrug-resistant P. aeruginosa.
- The purified bacteriocin, enterocin GH, demonstrated significant antibacterial and antibiofilm activity against P. aeruginosa, outperforming controls in laboratory tests.
Synergistic effect of proanthocyanidins and cefquinoxime sulfate on methicillin-resistant Staphylococcus aureus.
Pak J Pharm Sci
January 2025
Innovation Center Laboratory for Traditional Chinese Veterinary Medicine (TCVM), College of Veterinary Medicine, China Agricultural University, Beijing, China.
To address the severe problem of methicillin-resistant Staphylococcus aureus (MRSA) resistance, this study identified a single component from traditional Chinese medicine that, when used in combination with existing antibiotics, enhances the therapeutic efficacy of the antimicrobial drugs. Using the micro broth dilution method and the checkerboard dilution method, susceptibility tests were conducted on ten commonly used β-lactam antibiotics against eleven strains of MRSA. It was found that cefquinome sulfate exhibits synergistic activity with PROs.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!