Structure of oligosaccharides by hydrolytic studies from Acrocarpus fraxinifolius Wight. seeds polysaccharide
نویسنده
چکیده
Polysaccharide was extracted from Acrocarpus fraxinifolius Wight. seeds yielded a water soluble sugar as D-galactose and D-mannose in 1:3 molar ratio. Polysaccharide upon partial acid hydrolysis affords mainly 3 disaccharides and one trisaccharide as: (I) α-D-galactopyranosyl-(1→6)-O-α-Dmannopyranose, (II) α-D-mannopyranosyl-(1→6)-O-α-D-mannopyranose, (III) β-D-galactopyranosyl(1→4)-Oβ-D-mannopyranose and (IV) β-D-mannopyranosyl-(1→4)-O-β-D-mannopyranosyl-(1→4)O-β-D-mannopyranose. Oligosaccharides results corroborate the earlier proposed structure of seeds polysaccharide.
منابع مشابه
Structure of the Polysaccharide Occurring in the Seeds of Cassia Mimosa : Hydrolytic Studies
The seeds of Cassia Mimosa have been reported to be highly rich in mucilaginous matter. The preliminary screening of the seeds of the plants belonging to above mentioned genus has been conducted to locate a good source of polysaccharides. Cassia Mimosa ( Linn ), is commonly known as a “Horse Cassia” belongs to the family Leguminasceae ( Sub-family : Cesalpinaceae ). It is an ornamental and deci...
متن کاملEffect of microwave treatment on the antinutritional factors of two accessions of velvet bean, Mucuna pruriens (L.) DC. var. utilis (Wall. ex Wight) Bak. ex Burck
The present study was carried out to investigate the role of microwave treatment in eliminating the antinutritional factors such as, total free phenolics, tannin, l-dopa, phytic acid, hydrogen cyanide, total oxalate, trypsin inhibitor activity, oligosaccharides and phytohaemagglutins in the seeds of two accessions of velvet bean, Mucuna pruriens var. utilis. Microwave treated raw and overnight ...
متن کاملStructural studies on colanic acid, the common exopolysaccharide found in the enterobacteriaceae, by partial acid hydrolysis. Oligosaccharides from colanic acid.
The exopolysaccharide slime colanic acid has been isolated from representative strains of Escherichia coli, Salmonella typhimurium and Aerobacter cloacae. Analysis showed that each polymer contained glucose, galactose, fucose and glucuronic acid, together with acetate and pyruvate. The molar proportions of these components were 1:1.8:1.9:1:1:1 approximately. On the basis of periodate oxidation ...
متن کاملExtraction, Purification and Characterization of a Galactomannan from Prosopis Juliflora (sw.) Dc. Seed Polysaccharides
Prosopis juliflora (Sw.) DC. an Indian fast growing and spreading tree of which pods, leaves are extensively used for various applications. The seeds contain about 22% endosperm and possess the characteristics of becoming a potential source of seed gum. The structural aspects of the galactomannans have been determined for a better understanding of its properties. The purified seed polysaccharid...
متن کاملChemical Composition and Antioxidant Activity of Heracleum sprengelianum (Wight and Arnott) Essential Oils Growing Wild in Peninsular India
The essential oils, isolated by hydrodistillation from the leaves, seeds and rhizomes of Heracleum sprengelianum (Wight and Arnott), collected from the Western Ghats of Peninsula India, were analyzed by gas chromatography (GC) and gas chromatography coupled to mass spectrometry (GC–MS). The antioxidant property of these oils was tested, with and without peroxidation inducer, through the egg yol...
متن کامل