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© Research
Publication : Carbohydrate research

Isolation and characterisation of hemicelluloses from sunflower hulls

Team: Archived: Aspergillus
Member: Thierry Fontaine
Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Carbohydrate research - 01 May 1993

Bazus A, Rigal L, Gaset A, Fontaine T, Wieruszeski JM, Fournet B

Link to Pubmed [PMID] – 8348544

Carbohydr. Res. 1993 May;243(2):323-32

The hemicelluloses extracted from sunflower hulls by repeated alternating oxidative and alkaline treatments were purified by precipitation with Cetavlon and then ion-exchange chromatography on DEAE-trisacryl. The resulting fractions were examined by hydrolysis, methylation, GLC-MS, and NMR spectroscopy. The hemicelluloses are of the glucuronoxylan type with the following structure –>4)-beta-D-Xylp-(1–>4)-[4-O-Me-alpha-D-GlcpA-(1–>2)]-bet a-D-Xylp-(1–>. The polysaccharides differed in the amount of branching; the ratio of the main fraction 4-O-MeGlcA:Xyl was 1:8-9.