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Isolation and characterization of xylans from seed pericarp of Argania spinosa fruit.

Authors :
Habibi Y
Vignon MR
Source :
Carbohydrate research [Carbohydr Res] 2005 May 23; Vol. 340 (7), pp. 1431-6.
Publication Year :
2005

Abstract

Hemicellulose-type polysaccharides were isolated from the pericarp of seeds of Argania spinosa (L.) Skeels fruit by sequential alkaline extractions and fractionated by precipitation. Water soluble and water insoluble fractions were obtained, purified and characterized by sugar analysis and 1H and 13C NMR spectroscopy. The water soluble fractions were assumed to be (4-O-methyl-D-glucurono)-D-xylans, with 4-O-methyl-D-glucopyranosyluronic acid groups linked to C-2 of a (1-->4)-beta-D-xylan. The 1H NMR spectrum showed that the water soluble xylans have, on average, one non-reducing terminal residue of 4-O-methyl-D-glucuronic acid for every seven xylose units. The water insoluble fractions consisted of a neutral xylan with linear (1-->4)-beta-D-xylopyranosyl units.

Details

Language :
English
ISSN :
0008-6215
Volume :
340
Issue :
7
Database :
MEDLINE
Journal :
Carbohydrate research
Publication Type :
Academic Journal
Accession number :
15854618
Full Text :
https://doi.org/10.1016/j.carres.2005.01.039