ArticleInternational journal of molecular sciences2013
GC and GC/MS analysis of essential oil composition of the endemic Soqotraen Leucas virgata Balf.f. and its antimicrobial and antioxidant activities.
Article in International journal of molecular sciences, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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12 citing papers in PubMed.
- Determination of Chemical Composition and Antioxidant Capacity of Fruit Tree Resins Belonging to the Prunus Species and Determination of Their In Vivo Diuretic Activities.Molecules (Basel, Switzerland) · 2026Article
- Essential Oils of Dill and Nettle as a Natural Alternative to Reduce Pathogenic Bacteria on Dairy Production Surfaces.Microorganisms · 2026Article
- Comparative Evaluation of the In Vitro Antibacterial Activity of Preliminary Plant Preparations Against Phenotypically Multidrug-Resistant Urinary Isolates of Escherichia Coli.BioMed research international · 2026Article
- Biplot analysis and correlations between changes in terpenes in calf milk and immune variables, performance and rumen variables.Scientific reports · 2025Article
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- Chemical Composition, In Vitro Antimicrobial, Free-Radical-Scavenging and Antioxidant Activities of the Essential Oil of Leucas inflata Benth.Molecules (Basel, Switzerland) · 2017Article
- Chemical Composition and Antioxidant and Antibacterial Activities of an Essential Oil Extracted from an Edible Seaweed, Laminaria japonica L.Molecules (Basel, Switzerland) · 2015Article
- A Survey of Chemical Compositions and Biological Activities of Yemeni Aromatic Medicinal Plants.Medicines (Basel, Switzerland) · 2015Review
- Characterization of ambrette seed oil and its mode of action in bacteria.Molecules (Basel, Switzerland) · 2014Article
- Chemical composition, leishmanicidal and cytotoxic activities of the essential oils from Mangifera indica L. var. Rosa and Espada.BioMed research international · 2014Article
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5 authors.
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Abstract
Leucas virgata Balf.f. (Lamiaceae) was collected from the Island Soqotra (Yemen) and its essential oil was obtained by hydrodistillation. The chemical composition of the oil was investigated by GC and GC-MS. Moreover, the essential oil was evaluated for its antimicrobial activity against two Gram-positive bacteria, two Gram-negative bacteria, and one yeast species by using broth micro-dilution assay for minimum inhibitory concentrations (MIC) and antioxidant activity by measuring the scavenging activity of the DPPH radical. The investigation led to the identification of 43 constituents, representing 93.9% of the total oil. The essential oil of L. virgata was characterized by a high content of oxygenated monoterpenes (50.8%). Camphor (20.5%) exo-fenchol (3.4%), fenchon (5.4%), and borneol (3.1%) were identified as the main components. Oxygenated sesquiterpenes were found as the second major group of compounds (21.0%). β-Eudesmol (6.1%) and caryophyllene oxide (5.1%) were the major compounds among oxygenated sesquiterpenes. The results of the antimicrobial assay showed that the oil exhibited a great antibacterial activity against the tested S. aureus, B. subtilis, and E. coli. No activity was found against P. aeruginosa and C. albicans. Moreover, the DPPH-radical scavenging assay exhibited only a moderate antioxidant activity (31%) for the oil at the highest concentration tested (1 mg/mL).
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