Structural investigation of a heteropolysaccharide isolated from the green fruits of Capsicum annuum.
A water-soluble polysaccharide isolated from the hot water extract of the green fruits of Capsicum annuum was found to consist of 3-O-acyl-L-rhamnose, D-methyl galacturonate, 6-O-methyl-D-galactose in a molar proportion of nearly 1:2:1. Structural investigation of the polysaccharide was carried out using total hydrolysis, methylation analysis, periodate oxidation followed by GLC-MS, and NMR experiments. On the basis of the above-mentioned experiments it is concluded that the following repeating unit is present in the polysaccharide.
Mondal
Subhas
S
Department of Chemistry and Chemical Technology, Vidyasagar University, Midnapore, West Bengal, India.
Das
Debsankar
D
Maiti
Debabrata
D
Roy
Sadhan K
SK
Islam
Syed S
SS
D002212:Capsicum / Q000737:chemistry*; D002240:Carbohydrate Sequence; D005638:Fruit / Q000737:chemistry*; D006358:Hot Temperature; D009682:Magnetic Resonance Spectroscopy; D008969:Molecular Sequence Data; D010858:Pigmentation; D010936:Plant Extracts / Q000737:chemistry / Q000302:isolation & purification; D011134:Polysaccharides / Q000737:chemistry* / Q000302:isolation & purification*; D014867:Water / Q000737:chemistry
D010936:Plant Extracts; D011134:Polysaccharides; D014867:Water