RESUMO
Four isoflavonoids were isolated from the rhizomes and roots of Iris florentina L. and identified as irisflorentin [1], irisolone [2], irigenin [3], which were previously isolated from the plant [1] and 5-hydroxy, 8,4'-dimethoxy 7-0-isoflavone glucoside [4] isolated for the first time from I. florentina. Macro- and micromorphological characters of the rhizomes and roots were also studied in order to establish its diagnostic features in both entire and powdered forms
Assuntos
Flavonas/análise , Raízes de Plantas , Extratos Vegetais , Cromatografia em Camada Fina , EspectrofotometriaRESUMO
The macro- and micromorphological characters of root, stem, leaf and flower of Molucella laevis L. [Lamiacae] are described and illustrated to facilitate their identification. The volatile oil of Molucella laevis L. was analyzed by capillary gas chromatography coupled to GC/MS. Forty-one components were identified. The major components of the oil were alpha-pinene [20.9%], pinocarvone [27%], methyl chavicol [20%] and trans-beta-caryophyllene [10%]
Assuntos
Farmacognosia , Estruturas Vegetais , Óleos de Plantas , Cromatografia Gasosa-Espectrometria de Massas , Lamiaceae/anatomia & histologiaRESUMO
Dihydroimperatorin, marmesin and xanthoranol were isolated for the first time from Malabaila secacule L. [Umbelliferae]. The structure of these compounds were confirmed by using spectroscopic methods including UV, IR, PMR and mass spectra