Abstract

The biological diversity of marine habitats is a unique source of chemical compounds with potential use as pharmaceuticals, cosmetics and dietary supplements. However, biological screening and chemical analysis of marine extracts pose specific technical constraints and require adequate sample preparation. Here we report an improved method on Solid Phase Extraction (SPE) to fractionate organic extracts containing high concentration of salt that hampers the recovery of secondary metabolites. The procedure uses a water suspension to load the extracts on a poly(styrene-divynylbenzene)-based support and a stepwise organic solvent elution to effectively desalt and fractionate the organic components. The novel protocol has been tested on MeOH-soluble material from three model organisms (Reniera sarai, Dendrilla membranosa and Amphidinium carterae) and was validated on a small panel of 47 marine samples, including sponges and protists, within discovery programs for identification of immuno-stimulatory and anti-infective natural products.

Details

Title
Development and Application of a Novel SPE-Method for Bioassay-Guided Fractionation of Marine Extracts
Author
Cutignano, Adele 1 ; Nuzzo, Genoveffa 1 ; Ianora, Adrianna 2 ; Luongo, Elvira 1 ; Romano, Giovanna 2 ; Gallo, Carmela 1 ; Sansone, Clementina 2 ; Aprea, Susanna 3 ; Mancini, Francesca 3 ; Ugo D’Oro 3 ; Fontana, Angelo 1 

 Bio-Organic Chemistry Unit, Institute of Biomolecular Chemistry-CNR, Via Campi Flegrei 34, Pozzuoli, Naples 80078, Italy 
 Marine Biotechnology Laboratory, Integrative Marine Ecology Department, Stazione Zoologica Anton Dohrn, Villa Comunale, Naples 80121, Italy 
 GSK Vaccines s.r.l., Via Fiorentina 1, Siena 53100, Italy 
First page
5736
Publication year
2015
Publication date
2015
Publisher
MDPI AG
e-ISSN
16603397
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2799096279
Copyright
© 2015 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.