Free amino acids, free monosaccharides and total saccharides released upon hydrolysis, sterols, and triterpenoids of the leaves of Aloe barbadensis Miller leaves were determined. Some seventeen amino acids, D-glucose, and D-mannose were present in the water-soluble fraction. Cholesterol, campesterol, β-sitosterol, and lupeol were found in substantial amounts in the lipid fraction. An unknown(s)...

Frankincense is an aromatic terpenoid oleo-gum resin produced by trees in the genus Boswellia. It has been used for medicinal and religious purposes millennia, today important component perfume aromatherapy. The of Boswellia frereana especially prized, found to contain a high proportion monoterpenes. However, previous studies have relied on commercial samples; this study, we characterize compos...

Eight lignans (+/-)-syringaresinol, (-)-pinoresinol, (+)-sesamin, (+)-eudesmin, (+)-epieudesmin, (-)-asarinin, (-)-matairesinol, (-)-kobusin, two terpenes lupeol, beta-sitosterol, one aliphatic unsaturated amide, hydroxy-gamma-sanshoöl, and one alkaloid, magnoflorine, were isolated from ZANTHOXYLUM species of Central and South America. Their structures were elucidated mainly by (1)H-, (13)C-NMR...

Fractionation of crude petroleum ether extract of the leaves of Chenopodium album Linn lead to the isolation of β-sitosterol (1), lupeol (2) and 3 hydroxy nonadecyl henicosanoate (3). Their structures were elucidated by spectroscopic methods such as UV, IR, NMR and LCMS. Compound 2 and 3 were isolated for the first time from this plant.

A new pyranoxanthone, venuloxanthone (1), was isolated from the stem bark of Calophyllum venulosum, together with three other xanthones, tovopyrifolin C (2), ananixanthone (3) and caloxanthone I (4), along with two common triterpenes, friedelin (5) and lupeol (6). The structures of these compounds were identified using several spectroscopic analyses which are NMR, GCMS and FTIR experiments.

ETHNOPHARMACOLOGICAL RELEVANCE The ethanolic extract of Lychnophora trichocarpha Spreng. is used in Brazilian folk medicine to treat bruise, pain and inflammatory diseases. AIM OF THE STUDY The present study aimed at investigating whether ethanolic extract of L. trichocarpha, its ethyl acetate fraction and its main bioactive compounds could be useful to treat gouty arthritis by countering hyp...

Cyclic triterpenes constitute one of the most diverse groups of plant natural products. Besides the intriguing biochemistry of their biosynthetic pathways, plant triterpenes exhibit versatile bioactivities, including antimicrobial effects against plant and human pathogens. While prokaryotes have been extensively used for the heterologous production of other classes of terpenes, the synthesis of...

Aquatidial, um novo bis-norsesquiterpenóide assimétrico, hipoteticamente derivado da isoemigossipolona, foi isolado da casca externa das raízes de Pachira aquatica (Bombacaceae), juntamente com os compostos conhecidos isoemigossipolona, p-cumarato de triacontila e lupeol. As estruturas do aquatidial e dos demais compostos foram determinadas por análises espectroscópicas (EM-FAB, IV, RMN 1D e 2D...