Chemical composition of hydroethanolic extracts from five species of the Passiflora genus
Sakalem, Marna Eliana [UNIFESP]
Negri, Giuseppina [UNIFESP]
Tabach, Ricardo [UNIFESP]
Is part ofRevista Brasileira de Farmacognosia
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The diversified genus Passiflora is well distributed all over Brazil, and many species have been long used as medicinal plants, mainly against anxiety disturbances. This effect has been attributed to its rich flavonoid composition. Flavonoids main class, flavonoid glycosides, has presented central action, particularly as sedative-hypnotic, anxiolytic and analgesic. The objective of the present study was to make a phytochemical screening of five little studied Passiflora species, in order to evaluate their phenolic composition. For this aim, HPLC-DAD-ESI-MS/MS was used. After the preparation of the hydroalcoholic extracts, each species was evaluated by direct injection electrospray ionization (ESI) and tandem mass spectrometry. Although belonging to the same genus, the composition of each species presented particularities; this justifies the importance of studies aiming for the phenolic composition of different Passiflora species. Flavones C-glycosides were detected in all extracts, and are found as the main constituents in P. vitifolia, P. coccinea, P. bahiensis and P. sidifolia. In this last one, flavone-6,8-di-C-glycoside, apigenin-6-C-rhamnosyl-8-C-arabinoside are present in high content. Cyclopassiflosides were found in high content together with cyanogenic glycosides in P. quadrangularis, while in P. coccinea, besides flavones-C-glycosides were also found procyanidins.
CitationRevista Brasileira de Farmacognosia. Sociedade Brasileira de Farmacognosia, v. 22, n. 6, p. 1219-1232, 2012.
SponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Associacao Fundo de Incentivo a Psicofarmacologia (AFIP)
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