Search results for "Smilax"

showing 4 items of 4 documents

Steroidal saponins from Smilax medica and their antifungal activity.

2005

Three new steroidal saponins (1-3) were isolated from the roots of Smilax medica, together with the known disporoside A (4). The structures of the new compounds were elucidated mainly by extensive spectroscopic analysis (1D and 2D NMR, FABMS, and HRESIMS). Compounds 1, 2, and 4 demonstrated weak antifungal activity against the human pathogenic yeasts Candida albicans, C. glabrata, and C.tropicalis, with MIC values between 12.5 and 50 microg/mL.

Antifungal AgentsStereochemistrySaponinPharmaceutical ScienceMicrobial Sensitivity TestsPharmacognosyAnalytical ChemistryDrug DiscoveryHumansCandida albicansMexicoNuclear Magnetic Resonance BiomolecularCandidaPharmacologychemistry.chemical_classificationPlants MedicinalbiologyTraditional medicineCandida glabrataMolecular StructureLiliaceaeOrganic ChemistrySmilaxGlycosideBiological activitySaponinsbiology.organism_classificationComplementary and alternative medicinechemistrySmilaxMolecular MedicineSteroidsJournal of natural products
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Steroidal saponins from the roots of Smilax aspera subsp. mauritanica

2008

Two new steroidal saponins (1, 2) were isolated from the roots of Smilax aspera subsp. mauritanica (POIR.) ARCANG. (Liliaceae), together with the known curillin G (3), asparagoside E (4), asparoside A (5), asparoside B (6) and the phenolic compound resveratrol (7). Their structures were established mainly on the basis of 600 MHz 2D-NMR spectral data. 3 exhibited antifungal activity against the human pathogenic yeasts Candida albicans, C. glabrata and C. tropicalis (minimum inhibitory concentrations of 25, 25 and 50 microg/ml, respectively) whereas the other compounds were inactive.

AntifungalSpectrometry Mass Electrospray IonizationAntifungal AgentsMagnetic Resonance SpectroscopySpectrophotometry Infraredmedicine.drug_classMolecular Sequence DataPharmaceutical ScienceMicrobial Sensitivity TestsSpectrometry Mass Fast Atom BombardmentResveratrolPlant RootsAnalytical Chemistrychemistry.chemical_compoundDrug DiscoveryBotanymedicineCandida albicansSpectral dataSmilax asperaCandidaPharmacologybiologyTraditional medicineLiliaceaeHydrolysisOrganic ChemistryFungiGeneral ChemistryGeneral MedicineSaponinsbiology.organism_classificationKetoconazoleCarbohydrate SequenceComplementary and alternative medicinechemistrySmilaxMolecular MedicineSteroidsPlanta Medica
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Bioactive Steroidal Saponins from Smilax medica

2006

Two new spirostanol saponins ( 1 and 2) were isolated from the roots of Smilax medica, together with the known smilagenin 3-O-beta-D-glucopyranoside (3). Their structures were determined by spectroscopic methods including 1D- and 2D-NMR experiments. Compounds 1 and 2 exhibited antifungal activity against the human pathogenic yeasts Candida albicans, C. glabrata and C. tropicalis (MICs between 6.25 and 50 microg/mL) whereas 3 was inactive.

AntifungalAntifungal AgentsMagnetic Resonance Spectroscopymedicine.drug_classSmilageninSaponinPharmaceutical ScienceMicrobial Sensitivity TestsPharmacognosyAnalytical ChemistryDrug DiscoverymedicineCandida albicansCandidaPharmacologychemistry.chemical_classificationbiologyTraditional medicineLiliaceaeOrganic ChemistrySmilaxSaponinsbiology.organism_classificationComplementary and alternative medicinechemistrySmilaxMolecular MedicinePlanta Medica
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Phytosociological remarks on residual woodlands of Laurus nobilis in Sicily

2010

A phytosociological study was done of Laurus nobilis woodlands in Sicily. The analysis, based on 18 relevés, supports the definition of a new syntaxon (Acantho mollis-Lauretum nobilis ass. nov.), considered as a vicariant of similar vegetation aspects described in other Mediterranean areas (Iberian and Italian peninsulas). The study mainly includes some unpublished sites where polycormic individuals of laurel, sometimes reaching 13-15 meters in height, dominates the tree layer. This vegetation is also characterized by some laurophyllous species (Hedera helix, Rhamnus alaternus, Smilax aspera and sometimes Viburnum tinus) and lianas (Rubia peregrina var. longifolia, Asparagus acutifolius, Ta…

CalystegiabiologyEcologyLaurus nobilis matorral Quercetea ilicis Mediterranean region relic vegetationPlant Sciencebiology.organism_classificationPistacia terebinthusfood.foodLaurus nobilisfoodClematis vitalbaHedera helixBotanySettore BIO/03 - Botanica Ambientale E ApplicataViburnum tinusSmilax asperaUndergrowth
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