Das, Srabani; Ghosal, Pradyot K.; Ray, Bimalendu published the artcile< Structural studies of a polysaccharide from the seeds of Salmalia malabarica>, Related Products of 112-63-0, the main research area is Salmalia seed polysaccharide.
The polysaccharides isolated from the defatted seeds of Salmalia malabarica (Bombacaceae) were fractionated into Fractions I (48%), II (30%), III (14%), and IV (8%) using a column of Sephadex G-100 in pyridine-acetate buffer. The principal polysaccharide fraction, Fraction I (carbohydrate content 98%), was found to be electrophoretically homogeneous. Hydrolysis (M sulfuric acid, 16 h, 100°) of Fraction I revealed galactose and arabinose by paper chromatog. in a relative ratio of 7:3 as determined by gas-liquid chromatog. of their alditol acetates using myo-inositol as the internal standard The configuration of the galactose and arabinose were determined as D and L, resp., from their optical rotation measurements. Complete methylation of Fraction I by the Hakomori method (1964) and hydrolysis of the methylated polysaccharide yielded 2,3,5-tri-O-methyl-L-arabinofuranose (4.1 mol. equivalent), 2,3,4-tri-O-methyl-L-arabinopyranose (11 mol. equivalent), 2,3,4,6-tetra-O-methyl-D-galactose (0.85 mol. equivalent), 2,3,6-tri-O-methyl-D-galactopyranose (10.8 mol. equivalent), 2,4,6-tri-O-methyl-D-galactopyranose (2.2 mol. equivalent), 3,6-di-O-methyl-D-galactose (12.4 mol. equivalent), and 3,4-di-O-methyl-D-galactose (7.0 mol. equivalent). These products reveal that both L-arabinopyranose and L-arabinofuranose are present at the nonreducing ends. A small number of the nonreducing termini are occupied by D-galactose. Appearance of a large molar proportion of the tri-O-Me pentoses shows that the polysaccharide is highly branched. The major portion of the interior part consists of D-galactose residues linked (1→2,6) and (1→2,4). A portion of the chain was made by D-galactose linked principally (1→4). There was a small portion of D-galactose residues linked (1→3). The polysaccharide Fraction I consumed about 0.9 mol. equivalent of periodate per mol of hexosyl residue as was monitored spectrophotometrically. Only D-galactose was detected in the paper chromatogram when the periodate-oxidized, borohydride-reduced material was hydrolyzed with sulfuric acid (0.5 M). This observation was in fair agreement with the linkage pattern as suggested from the methylation anal.
Carbohydrate Research published new progress about Bombax ceiba. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Related Products of 112-63-0.
Referemce:
Ester – Wikipedia,
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