title: Chemical analysis of a polysaccharide of unripe (green) tomato (Lycopersicon esculentum).
abstract: A polysaccharide (PS-I) isolated from the aqueous extract of the unripe (green) tomatoes (Lycopersicon esculentum) consists of D-galactose, D-methyl galacturonate, D-arabinose, L-arabinose, and L-rhamnose. Structural investigation of the polysaccharide was carried out using total acid hydrolysis, methylation analysis, periodate oxidation study, and NMR studies ((1)H, (13)C, DQF-COSY, TOCSY, NOESY, ROESY, HMQC, and HMBC). On the basis of above-mentioned experiments the structure of the repeating unit of the polysaccharide (PS-I) was established as: [structure: see text].
authors.affiliation: Department of Chemistry and Chemical Technology, Vidyasagar University, Midnapore 721 102, West Bengal, India.
authors.forename: Krishnendu
authors.initials: K
authors.lastname: Chandra
authors.forename: Kaushik
authors.initials: K
authors.lastname: Ghosh
authors.forename: Arnab K
authors.initials: AK
authors.lastname: Ojha
authors.forename: Syed S
authors.initials: SS
authors.lastname: Islam
mesh_terms: D002240:Carbohydrate Sequence; D018551:Solanum lycopersicum / Q000737:chemistry* / Q000254:growth & development; D009682:Magnetic Resonance Spectroscopy; D008969:Molecular Sequence Data; D011134:Polysaccharides / Q000737:chemistry* / Q000302:isolation & purification; D014867:Water / Q000737:chemistry
chemical_list: D011134:Polysaccharides; D014867:Water