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.

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.

Constituintes químicos e atividade antioxidante de extratos das folhas de Terminalia fagifolia Mart. et Zucc

Phytochemical investigation of ethanolic leaves extracts of T. fagifolia led to the isolation of (+)-catechin, sitosterol-3-O-β-D-glucopyranoside, α- and β-tocopherol, a mixture of lupeol, α- and β-amyrin, sitosterol and a mixture of glicosid flavonoids (CP-13). The structures of these compounds were identified by ¹H and 13C NMR spectral analysis and comparison with literature data. Absolute configuration of the catechin was determinate by circular dichroism. Antioxidant activity (EC50), evaluated by 2,2-diphenyl-1-picrylhidrazyl (DPPH) assay system, decreased in the order: (+)-catechin > hydroalcoholic fraction > CP-13 > aqueous fraction > EtOH extract.

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].

Alcaloides β-indolopiridoquinazolínicos de Esenbeckia grandiflora mart. (Rutaceae)

The chemical composition of two specimens of Esenbeckia grandiflora, collected in the south and northeast regions of Brazil, was investigated. In this study, three β-indolopyridoquinazoline alkaloids from the leaves (rutaecarpine, 1-hydroxyrutaecarpine) and roots (euxylophoricine D) were isolated for the first time in this genus. In addition, the triterpenes α-amyrin, β-amyrin, α-amyrenonol, β-amyrenonol, 3α-hydroxy-ursan-12-one, and 3α-hydroxy-12,13-epoxy-oleanane, the coumarins auraptene, umbelliferone, pimpinelin, and xanthotoxin, the furoquinoline alkaloids delbine and kokusaginine, and the phytosteroids sitosterol, stigmasterol, campesterol and 3β-O-β-D-glucopyranosylsitosterol were also isolated from the leaves, twigs, roots and stems of this species. Structures of these compounds were established by spectral analysis.

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.