ISOLATION, CHARACTERIZATION, AND MONOSACCHARIDE COMPOSITION OF PECTIC POLYSACCHARIDES FROM FOUR AMARANTH (AMARANTHUS SPP.) VARIETIES CULTIVATED IN UZBEKISTAN
DOI:
https://doi.org/10.37547/Keywords:
Amaranth pectins; polysaccharides; monosaccharide composition; extraction; chromatography.Abstract
In this study, pectic substances were isolated and characterized from four local amaranth varieties (Andijon, Ulug’nor, Uzbekistan, and Marhamat) cultivated in Uzbekistan. Extraction was carried out using an equal mixture of 0.25% oxalic acid and ammonium oxalate solutions at 75 °C in two steps. The monosaccharide composition of the isolated pectins was determined by paper chromatography and gas chromatography, revealing mannose, glucose, galactose, and rhamnose as the major components. The pectin yield ranged from 3.3% to 8.5%. The findings indicate that amaranth pectins represent a promising source of biologically active polysaccharides for food and pharmaceutical industries.
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