Abstract
Phytochemical investigation of chloroform extract from the leaves of the marine plant Posidonia oceanica (L.) Delile (Posidoniaceae), yielded posidozinol, a new methylated sesquiterpene along with β-sitosterol and four known fatty acids: palmitic, palmitoleic, oleic and linoleic acids. The structure elucidation has been established on the basis of 1D- and 2D-NMR spectroscopy, GS/MS and ES mass spectrometry. Antibacterial effects of crude extracts from P. oceanica were evaluated against: Pseudomonas aeruginosa, Escherichia coli, Staphylococcus aureus, Staphylococcus epidermidis and Micrococcus luteus microorganisms.
MeSH terms
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Alismatales / chemistry*
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Chloroform
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Chromatography, Thin Layer
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Colony Count, Microbial
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Disk Diffusion Antimicrobial Tests
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Escherichia coli / drug effects
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Fatty Acids / isolation & purification
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Magnetic Resonance Spectroscopy
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Mass Spectrometry
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Methylation
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Micrococcus luteus / drug effects
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Molecular Structure
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Plant Extracts / chemistry*
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Plant Leaves / chemistry*
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Pseudomonas aeruginosa / drug effects
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Sesquiterpenes / chemistry
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Sesquiterpenes / isolation & purification*
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Sesquiterpenes / pharmacology
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Sitosterols / isolation & purification
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Staphylococcus / drug effects
Substances
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Fatty Acids
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Plant Extracts
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Sesquiterpenes
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Sitosterols
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gamma-sitosterol
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Chloroform