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Steroidal and triterpenoidal glucosides from passiflora alata

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Steroidal and triterpenoidal glucosides from passiflora alata

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Title Steroidal and triterpenoidal glucosides from passiflora alata
Author Reginatto, Flavio Henrique
Kauffmann, Carla
Schripsema, Jan
Guillaume, Dominique
Gosmann, Grace
Schenkel, Eloir Paulo
Abstract in Portuguese Cinco glicosídeos foram isolados a partir das folhas de P. alata. Após extensivas análises espectroscópicas, as estruturas 1-5 foram identificadas como sendo o 3-O-B-D-glicopiranosilestigmasterol (1), o ácido 3-O-B-D-glicopiranosil-oleanólico (2), o ácido 3-O-B-D-glicopiranosil- (13)-B-D-glicopiranosil-oleanólico (3), o ácido 3-O-B-D- glicopiranosil-(12)-B-D-glicopiranosiloleanólico (4) e 9,19-ciclolanost-24Z-en-3B,21,26-tri-hidróxi-3,26-di-O-gentiobiose (5). Adicionalmente, foram analisados, através de CCD, extratos hidroetanólicos de espécies de Passiflora existentes no sul do Brasil (P. actinia, P. caerulea, P. edulis var. flavicarpa, P. elegans, P. foetida, P. misera e P. tenuifila). A acumulação de saponinas foi verificada somente em Passiflora alata. .
Abstract Five glycosides were isolated from leaves of P. alata. The structures 1-5 were obtained through extensive spectral analyses as 3-O-B-D-glucopyranosyl-stigmasterol (1), 3-O-B-D-glucopyranosyloleanolic acid (2), 3-O-B-D-glucopyranosyl-(1®3)-B-D-glucopyranosyl-oleanolic acid (3), 3-O- B-D-glucopyranosyl-(1®2)-B-D-glucopyranosyl-oleanolic acid (4) and 9,19-cyclolanost-24Z-en- 3b,21,26-trihydroxy-3,26-di-O-gentiobiose (5). Comparison of the TLC profiles of the hydroethanolic extracts from leaves of other Passiflora species found in the south of Brazil (P. actinia, P. caerulea, P. edulis var. flavicarpa, P. elegans, P. foetida, P. misera and P. tenuifila) showed that only P. alata presented saponin accumulation.
In Journal of the Brazilian Chemical Society. São Paulo, SP. Vol. 12, n. 1 (jan./fev. 2001), p. 32-36
Subject Maracuja
Passiflora alata
Passifloraceae
Saponinas
[en] Passiflora alata
[en] Passifloraceae
[en] Passionflower
[en] Saponins
Origem National
Type Journal article
URI http://hdl.handle.net/10183/24525
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