the aerial parts of salvia glutinosa afforded in addition to lupeol, a - and ? - amyrin a furanosesquiterpene, its structure being established by high field nmr techniques. the relative configuration at c-1, c-10, c-4, c-5 and c-6 of 6?tigloyloxyglechomafuran 1 was determined by the observed noe's

Abstract Antifungal activity of Monotheca buxifolia methanolic extract and its various fractions were assessed against Macrophomina phaseolina, a soil-borne fungal pathogen more than 500 vegetal species as well rare emerging opportunistic human pathogen. Different concentrations (3.125 to 200 mg mL −1 ) inhibited biomass by 39–45%. Isolated n- hexane, chloroform ethyl acetate suppressed 32–52%,...

Two new trachylobane- and one isopimarane-type diterpenoids: ent-18-hydroxy-trachyloban-3-one; ent-trachyloban-3-one; isopimara-7,15-dien-3beta-ol, were isolated from the leaves of Croton zambesicus, together with trans-phytol, beta-sitosterol, alpha-amyrin and stigmasterol. The structures were determined by extensive NMR techniques and X-ray analysis. The cytotoxicity of these compounds has be...

The essential oil of Salvia aegyptiaca was analysed by GC/ MS technique. Eighteen compounds were identified. It was found that the essential oil comprises 40% terpenoidal constituents, opposite to 32% fat derivatives. The major terpenoidal component was 1(10)aristolene (19.3%). From the non-volatile matter, β-amyrin, lupeol, β-sitosterol, stigmasterol, β-sitosterol-β-D-glucopyranoside and stigm...

Metabolome analysis was carried out to evaluate the effects of light-emitting diode (LED) spectra on the metabolic processes of ginseng (Panax ginseng C. A. Mayer) adventitious roots. In total, 35 hydrophilic and 11 lipophilic metabolites were identified in ginseng roots irradiated with red (630 nm), blue (465 nm) LED light or fluorescent lamp (FL) light, by gas chromatography–time-offlight mas...

The phytochemical studies on the plant of Scoparia dulcis.Linn resulted in isolation of α and β amyrin and steroidal glycoside are being reported for the first time from this plants. The preliminary phyto chemical screening showed the presence of Carbohydrates, protein and aminoacids, glycosides, phenolic compounds, steroids, di and tri terpenes, and flavanoids. The plant is reported to contain...

Saponins, a group of glycosidic compounds present in several plant species, have aglycone moieties that are formed using triterpenoid or steroidal skeletons. In spite of their importance as antimicrobial compounds and their possible benefits for human health, knowledge of the genetic control of saponin biosynthesis is still poorly understood. In the Medicago genus, the hemolytic activity of sap...

The present investigation aims at assessing the hepatoprotective effect of triterpene fraction isolated from the stem bark of Wrightia tinctoria (containing lupeol, β-amyrin and β-sitosterol) on CCl4-induced hepatotoxicity in the rat. CCl4 (1.5 mg/kg, i.p) is a potent hepatotoxic agent which causes peroxidative degeneration of membrane lipids with the potential outcome of fatty degeneration. Th...

Plants prevent dehydration by coating their aerial, primary organs with waxes. Wax compositions frequently differ between species, organs, and developmental stages, probably to balance limiting nonstomatal water loss with various other ecophysiological roles of surface waxes. To establish structure-function relationships, we quantified the composition and transpiration barrier properties of the...