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. 2007 Nov 26;342(16):2470-3.
doi: 10.1016/j.carres.2007.07.021. Epub 2007 Aug 6.

Separation of floridoside and isofloridosides by HPLC and complete (1)H and (13)C NMR spectral assignments for D-isofloridoside

Stéphanie Bondu  1 , Nelly Kervarec, Eric Deslandes, Roger Pichon
Affiliations

Separation of floridoside and isofloridosides by HPLC and complete (1)H and (13)C NMR spectral assignments for D-isofloridoside

Stéphanie Bondu et al. Carbohydr Res. .

Abstract

Isofloridosides (1-O-alpha-D-galactopyranosylglycerol) and floridoside (2-O-alpha-D-galactopyranosylglycerol) were extracted from the red alga Porphyra umbilicalis (Linné) Kützing (Bangiales, Rhodophyta). Their separation was achieved by HPLC (NH(2) P50 column) after successive purification of the crude extract by ion-exchange chromatography and HPLC (Sugar-Pak TM1 column). 1D and 2D NMR spectroscopy experiments allowed to completely assign the (1)H and (13)C spectra of D-isofloridoside.

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