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Type: Artigo de periódico
Title: Identification of sulfated steroidal glycosides from the starfish Heliaster helianthus by electrospray ionization mass spectrometry
Author: Maier, MS
Centurion, R
Muniain, C
Haddad, R
Eberlin, MN
Abstract: The starfish Heliaster helianthus contains Thornasteroside A (1) and Helianthoside (2) and its isomer (3) as the major sulfated steroidal glycosides. Saponin containing fractions obtained by purification of extracts of H. helianthus induced escape reactions and mortality in the limpets Siphonaria lessoni and Fissurella radiosa. ESI-MS and ESI-MS/MS were successfully applied to the rapid screening of two cytotoxic fractions obtained by purification of the ethanolic extracts of arms and central disks dissected from H. helianthus. Three major compounds were identified, together with minor sulfated steroidal mono- and diglycosides of polyhydroxysteroids.
Subject: starfish
Heliaster helianthus
sulfated glycosides
electrospray ionization tandem mass spectrometry
Country: EUA
Editor: Arkat Usa Inc
Citation: Arkivoc. Arkat Usa Inc, n. 301, n. 309, 2007.
Rights: aberto
Date Issue: 2007
Appears in Collections:Unicamp - Artigos e Outros Documentos

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