Search results for "Stachys"

showing 5 items of 15 documents

Volatile constituents of Stachys palaestina L. (Palestine woundwort) growing in Lebanon

2014

The hydrodistillation of the aerial parts of Stachys palaestina L. collected in Lebanon in the Kadisha Valley, yielded 0.1% (w/w) of essential oil. GC and GC-MS analyses enabled the identification of 87 compounds representing 90.8% of the total oil. Hexadecanoic acid (10%), hexahydrofarnesyl acetone (6.9%), eugenol (4.3%) and (E)-caryophyllene (4.3%) were the main components. On the whole, the oil was constituted mainly of sesquiterpenes (37.7%), among which sesquiterpene hydrocarbons (20.7%) slightly prevailed over oxygenated sesquiterpenes (17.0%). This is the first report on the chemical composition of S. palaestina essential oil.

Palmitic AcidPlant ScienceSesquiterpeneBiochemistryhexahydrofarnesylacetoneAnalytical Chemistrylaw.invention(E)-caryophyllenechemistry.chemical_compoundlawessential oilBotanyEugenolAcetoneOils VolatileStachys palaestinaPalestineLebanonChemical compositionEssential oileugenolPolycyclic SesquiterpenesbiologyTerpenesOrganic ChemistryStachysPlant Components Aerialbiology.organism_classificationhexadecanoic acidEugenolchemistryStachysSesquiterpenes
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Diterpenoids fromStachys mucronata

1994

PharmacologyComplementary and alternative medicineTraditional medicineOrganic ChemistryDrug DiscoveryBotanyStachys mucronataPharmaceutical ScienceMolecular MedicineBiologyAnalytical ChemistryPlanta Medica
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Chemical composition of the essential oil from aerial parts of Stachys palustris L. (Lamiaceae) growing wild in Southern Italy

2007

The paper reports the composition of the essential oil from aerial parts of Stachys palustris L. (Lamiaceae) from Southern Italy. The essential oil was extracted by hydrodistillation from selected plants and its chemical composition was determined by the GC-MS system on two fused- silica capillary columns of different polarity. The mass fraction of oil was 0.21 % on a dry weight basis. Altogether, 92 compounds were identified accounting for 93.6 % of the total oil, which was characterized mainly by carbonylic compounds (25.4 %), fatty acids and their esters (24.2 %), along with sesquiterpenoidic compounds (16.0 %) and phenols (11.2 %). The major components of the sample were caryophyllene o…

Stachys palustris; Lamiaceae; essential oil; caryophyllene oxide; hexahydrofarnesyl acetone; GC-MS
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The chemical composition of the aerial parts of Stachys spreitzenhoferi (Lamiaceae) growing in Kythira Island (Greece), and their antioxidant, antimi…

2022

The Stachys L. genus has been used in traditional medicine to treat skin inflammations, stomach disorders, and stress. The aim of this study was to investigate the chemical profile and biological activity of the methanolic extract of Stachys spreitzenhoferi Heldr. (Lamiaceae) aerial parts, collected on the island of Kythira, South Greece. The analysis by liquid chromatography coupled with electrospray ionization and high-resolution mass spectrometry [LC-(-)ESI/HRMSn] of the methanol extract revealed the occurrence of thirty-six compounds - flavonoids, phenylethanoid glycosides, iridoids, quinic acid derivatives, aliphatic alcohol glycosides, and oligosaccharides - highlighting the substanti…

Staphylococcus aureusQuinic AcidPlant ScienceAntiproliferative activityHorticultureAntimicrobial activityBiochemistryAntioxidantsAntimicrobial activity; Antioxidant effects; Antiproliferative activity; LC-(−)ESI/HRMS(n); Lamiaceae; Stachys spreitzenhoferi Heldr.; Anti-Bacterial Agents; Antioxidants; Flavonoids; Glycosides; Greece; Humans; Iridoids; Methanol; Plant Components Aerial; Plant Extracts; Quinic Acid; Reactive Oxygen Species; Staphylococcus aureus; Superoxide Dismutase; U937 Cells; Anti-Infective Agents; Lamiaceae; StachysAnti-Infective AgentsHumansIridoidsStachys spreitzenhoferi HeldrGlycosidesMolecular BiologyFlavonoidsLamiaceaeGreecePlant ExtractsSuperoxide DismutaseMethanolStachys spreitzenhoferi Heldr.LC-(−)ESI/HRMS(n)AerialGeneral MedicineU937 CellsAntioxidant effectPlant Components AerialAnti-Bacterial AgentsAntioxidant effectsStachysPlant ComponentsReactive Oxygen Species
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Cytotoxic neo-clerodane diterpenes from Stachys aegyptiaca

2018

Abstract Two new E/Z neo-clerodane diterpene isomers, trivially named stachaegyptin D (1) and E (2), together with known compounds, stachysolon monoacetate (3) and stachysolon diacetate (4), were isolated from an organic-solvent extract of the medicinal herb Stachys aegyptiaca. Structures were elucidated by a combination of spectroscopic methods, including HREIMS, 1H, 13C, DEPT, and 2D NMR analysis, as well as, first time X-ray analysis for stachysolone (3). All isolated metabolites showed some activity against the human hepatocellular cell line, HepG2. Compound 4 was the most active with an IC50 of 59.5 μM.

Traditional medicine010405 organic chemistryPlant ScienceDEPT01 natural sciencesBiochemistry0104 chemical sciences010404 medicinal & biomolecular chemistrychemistry.chemical_compoundchemistryClerodane DiterpenesCytotoxic T cellMedicinal herbsDiterpeneAgronomy and Crop ScienceTwo-dimensional nuclear magnetic resonance spectroscopyBiotechnologyStachys aegyptiacaPhytochemistry Letters
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