Chemical composition and antimicrobial activity of the essential oil from Aeolanthus suaveolens Mart. ex Spreng

The essential oils from leaves (sample A) and flowers (sample B) of Aeolanthus suaveolens Mart. ex Spreng were obtained by hydrodistillation and analyzed by GC, GC-MS, and chiral phase gas chromatography (CPGC). Six compounds have been identified from the essential oils, representing ca 94.3 and 93% of the oils corresponding to samples A and B, respectively. The major constituents of samples A and B essential oils were respectively, linalool (34.2%/34.9%), (-)-massoialactone (25.9%/17.0%) and (E)-beta-farnesene (25.4%/29.1%). The enantiomeric distribution of the monoterpene linalool was established by analysis on heptakis- (6-O-methyl-2,3-di-O-pentyl)-beta-cyclodextrin capillary column. The antimicrobial activity of the essential oil from leaves and isolated compounds was also evaluated.

Veritas religionis evangelicae ex scriptis gentilium adserta

Invocatio: I.N.J.C.

De usu, qvem ex scientia naturali in exercitio potestatis suae imperans capere potest

Invocatio: I.N.J.

Caussae quaedam probabiles fructus, ex concionibus sacris minus percepti

Invocatio: I.N.D O.M.

Hópla deksià kaì aristerá [kreikkaa] ex occasione 2 Cor. VI: v.7

Invocatio: [hepreaa].

De [hepreaa] ex Nehem. 8:4

Invocatio: [hepreaa].

Theoremata nonnulla ex amplissimo philosophiae agro deprompta

Painovuosi nimekkeestä.

De moribus gentium ex lingua earundem aestimandis

Invocatio: I.N.J.C.

Utilitates, qvae ex commerciis & coloniis in calidioribus mundi partibus patriae adfluerent

Painovuosi nimekkeestä.

Estudo fitoquímico das cascas das raízes de Zanthoxylum rigidum Humb. & Bonpl. ex Willd (Rutaceae)

Chemical investigation from root barks of Z. rigidum, resulted in the isolation of lupeol, a mixture of steroids campesterol, sitosterol, stigmasterol, sacarose, hesperidin, N-methylatanine and 6-acetonyldihydrochelerythrine. Their structures were established by spectral data analysis. No previous work has been reported on Z. rigidum species.

Atividade antioxidante de extratos e taninos condensados das folhas de Maytenus ilicifolia Mart. ex Reiss.

Maytenus ilicifolia (Celastraceae) is a native plant of South America and popularly known as "espinheira-santa". The aim of this study was to evaluate the antioxidant capacity of extracts and isolated compounds from this plant. The antioxidant activity of the crude and semipurified extracts and isolated compounds was evaluated through DPPH-radical and phosphomolybdenum-complex assays. By both methods, the ethyl-acetate fraction demonstrated better antioxidant capacity compared with vitamin C and trolox. In the compounds, the higher the number of hydroxyls, the greater the antioxidant activity. In addition, stereochemistry influenced antioxidant activity, i.e., compounds with 2R,3R showed greater activity than those with 2R,3S.

Deorum cum mortalibus immediate habita commercia ex Homero illustrata

Arkit: 1 arkintunnukseton lehti, D3 D4 E3.

Deorum cum mortalibus immediate habita commercia ex Homero illustrata

Arkit: 1 arkintunnukseton lehti, C-D2.