![]() Natural polymers as polysaccharides are generally obtained from marine organisms, fungal, bacterial, and vegetal sources. Overall, the findings suggested that LWSP is a promising source of natural additives in various industries fields. Results revealed that LWSP exhibited interesting 1,1-diphenyl-2-picrylhydrazyl (DPPH) ( mg/ml) and chelating activity ( mg/ml), and it displayed moderate reductive capacities. Physicochemical and antioxidant properties of LWSP were also investigated. ![]() ![]() Results obtained through 13C and 1H nuclear magnetic resonance (NMR) indicated that LWSP is consisted of four monosaccharide residues with α and β anomers. The molecular weight was estimated as 64.56 kDa. According to XRD, LWSP presented a semicrystalline behavior. The FTIR spectrum and UV absorption proved polysaccharide characteristic of LWSP. TLC and HPLC showed that LWSP was a polysaccharide consisted mainly of glucose, mannose, xylose, and arabinose. Polysaccharide was structurally characterized by NMR spectroscopic analysis, thin-layer chromatography (TLC), high-performance liquid chromatography (HPLC), Fourier-transform infrared spectroscopy (FTIR) analysis, X-ray diffraction (XRD), and UV absorption. In the present work, a novel water-soluble polysaccharide (LWSP) was purified from Katan seeds.
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