Chemical composition of hydroethanolic extracts from five species of the Passiflora genus

Abstract

Abstract:The diversifi ed genus Passifl ora 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 fl avonoid composition. Flavonoids' main class, fl avonoid glycosides, has presented central action, particularly as sedativehypnotic, anxiolytic and analgesic. The objective of the present study was to make a phytochemical screening of fi ve little studied Passifl ora 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 justifi es the importance of studies aiming for the phenolic composition of different Passifl ora 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, fl avone-6,8-di-C-glycoside, apigenin-6-C-rhamnosyl-8-C-arabinoside are present in high content. Cyclopassifl osides were found in high content together with cyanogenic glycosides in P. quadrangularis, while in P. coccinea, besides fl avones-Cglycosides were also found procyanidins.

Towards the cosmetic application of Passiflora coccinea (Aubl.): antioxidant activity and photo protective capacity of the methanolic and glycolic leaf extracts

“…Up to the present moment, the chemical compounds described in this species are the cyanogenic glycoside passicoccin (Spencer, Seigler, 1985), procyanidin derivatives, flavones-C-glycosides, flavones-8,7-di-O,Cglycosides and flavone-O-diglucoside (Sakalem, Negri, Tabach, 2012). In the present work, vitexin, isovitexin and 2"-O-β-D-glucopyranosyl-vitexin were detected in both types of P. coccinea extracts.…”

An overview of nutritional and anti nutritional factors in green leafy vegetables

“…This results in electrolyte imbalance with K depletion. Some of the methods to determine cyanogenic glycosides are gas-liquid chromatography, 107 ultra-high-performance liquid chromatography 108 coupled with a mass spectrometer, a reversed-phase high-performance liquid chromatography 109 and HPLC. 110…”

In vitro gastrointestinal biotransformation and characterization of a Desmodium adscendens decoction: the first step in unravelling its behaviour in the human body

“…an extract of P. incarnata and literature data, compounds 2 and 3 could be identified as schaftoside (2) and isoschaftoside (3), which were also isolated from other Desmodium species, such as D. styracifolium and D. unicatum. [12][13][14]18,[20][21][22][23] Compound 5 also showed the same deprotonated and protonated molecular ions as compound 6 at m/z 563 [MÀH] À /565 [M+H] + ; MS 2 and MS 3 analysis resulted in the same product ions. These findings suggested that compound 5 was a 2-O-pentosyl-x-C-hexosyl-apigenin isomer of compound 6, possibly 2″-O-xylosyl-isovitexin (5) as described by Zielinska et al [5] Compound 1 showed deprotonated and protonated molecular ions at m/z 593 [MÀH] À and 595 [M+H] + .…”