Similarity of monosaccharide, oligosaccharide and polysaccharide structures in gum exudate of Anacardium occidentale

Phytochemistry
J M MenestrinaPhilip A J Gorin

Abstract

The gum exudate from the Brazilian cashew-nut tree (Anacardium occidentale) contained traces of the reducing sugars, rhamnose (0.005%), arabinose (0.03%), mannose (0.007%), galactose (0.03%), glucose (0.02%), beta-D-Galp-(1-->6)-alpha beta-D-Gal (0.05%), alpha-L-Rhap-(1-->4)-alpha beta-D-GlcA (0.008%) and alpha-L-Rhap-(1-->4)-beta-D-GlcpA-(1-->6)-beta-D-Galp-(1-->6 )-alpha beta-D-Gal (0.008%). Rhamnose, arabinose, glucose and the three oligosaccharides are components of the side-chains of the gum polysaccharide, which has a main chain of (1-->3)-linked beta-D-Galp units. The structure of this polysaccharide was determined and found to differ from that previously reported for the gum of a tree growing in India, lacking units of 4-O-methylglucuronic acid. Other new side-chain structures were characterized, particularly -alpha-D-Galp-(1-->6)-D-Galp- and alpha-L-Araf-(1-->6)-D-Galp-).

Citations

Aug 15, 2000·Journal of Chromatography. B, Biomedical Sciences and Applications·L A SarubboE B Tambourgi
May 22, 2010·Phytochemistry·Juliana Bello Baron MaurerFilomena Angela Pettolino
Nov 16, 2002·Carbohydrate Research·Cesar A TischerPhilip A J Gorin
Apr 3, 2013·Carbohydrate Polymers·Fernanda F Simas-TosinPhilip A J Gorin
Mar 15, 2016·Scandinavian Journal of Immunology·F BovoJ B B Maurer
Jun 22, 2007·Brazilian Journal of Medical and Biological Research = Revista Brasileira De Pesquisas Médicas E Biológicas·A K TanakaA H Straus
Jul 11, 2018·Frontiers in Pharmacology·Mohammed Safwan Ali KhanPooi Ling Mok
Aug 20, 2017·Carbohydrate Polymers·Álvaro J LeiteJoão F Mano
Apr 24, 2004·Journal of Natural Products·Thales R CiprianiMarcello Iacomini

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