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.

Argumentum pro existentia Dei ex consensu gentium desumtum

Arkit: 1 arkintunnukseton lehti, A-B4 C3.

Theoriae possessionis ex jure civili Romanoque sciagraphica adumbratio (1)

Arkit: 1 arkintunnukseton lehti, A4 [B2].

Humana felicitas ex nexu veritatum, in theoria & praxi

Invocatio: Duc me, sine me sine te, Deus optime, duci. Nam duce me pereo; te duce saluus ero.

De emolumento ex itinere per provincias patriae instituto

Dedicatio: Paulus Heintzius, Michael Heintzius, Zacharias Cygnaeus, Petrus Heintzius.

De apodixi immortalitatis animae humanae ex ratione

Invocatio: [Alpha et Omega].

Theoremata nonnulla ex diversis disciplinis desumpta

Painovuosi nimekkeestä.

De virtute Mahumedis, aquam ex arena vel petra eliciendi

Dedicatio: Jacobus Tengström.

De fundamento telluris; ex occasione Job. XXVI. v. 7

Invocatio: Divina favente gratia.

Antifungal iridoids, triterpenes and phenol compounds from Alibertia myrciifolia Sprunge Ex. Schum

The new iridoid glucoside 10-O-vanilloyl-geniposidic acid has been isolated from the aerial parts of Alibertia myrciifolia along with hydroxyhopanone, 3α,22-dihydroxyhopane, ursolic acid, luteolin-3´,4´-dimethyl ether, caffeic acid and geniposidic acid. The structures of the isolated compounds were determined by means of mass spectrometry and nuclear magnetic resonance spectral analyses. The antifungal activities of the iridoids 10-O-vanilloyl-geniposidic acid and geniposidic acid were evaluated against the phytopathogenic fungi strains Colletotrichum gloeosporioides, Fusarium solani and Aspergillus niger.

Deorum cum mortalibus immediate habita commercia ex Homero illustrata

Arkit: 1 arkintunnukseton lehti, A-B4.

Adversariorum de avium nidis, ex observationibus in Tavastia collectis

Painovuosi nimekkeestä.

Verus modus quo mores populorum, ex propriis suis causis prudenter eruendi sunt

Invocatio: Favente Jehovah.