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- W2791424679 abstract "Preliminary characterization and bioactivity of water-soluble polysaccharides from four Impatiens species-I. glandulifera Royle, I. parviflora DC., I. balsamina L., and I. noli-tangere L.-were investigated. The yields of polysaccharides range widely from 1.97% for I. parviflora roots to 18.63% for I. balsamina aerial parts. SEC (Size exclusion chromatography) chromatograms show that all samples contained a low molecular weight part that consisted of components of similar molecular weight. The aerial parts and roots of I. balsamina, and I. glandulifera aerial parts had considerable amounts of high molecular weight components up to 2.3 MDa. The sugar composition analysis revealed that Impatiens polysaccharides consisted primarily of galactose, arabinose, rhamnose, mannose, xylose, and glucose. All polysaccharide fractions, except for I. parviflora roots, also contain galacturonic acid. Moreover, in vitro bioactivity of obtained polysaccharides were evaluated. The antioxidant activity was evaluated on the basis of 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2-azino-bis-(3-ethyl-benzthia-6-sulfonic acid) (ABTS) radical scavenging assays. The highest antioxidant activity was obtained for I. balsamina aerial parts and I. parviflora roots. Among the tested fractions, only the polysaccharides from I. glandulifera aerial parts were able to significantly decrease the production of IL-8 by 32.7 ± 10.5%. The results suggest that Impatiens species can be considered as a new source of antioxidants." @default.
- W2791424679 created "2018-03-29" @default.
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- W2791424679 date "2018-03-11" @default.
- W2791424679 modified "2023-10-14" @default.
- W2791424679 title "Preliminary Characterization and Bioactivities of Some Impatiens L. Water-Soluble Polysaccharides" @default.
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- W2791424679 doi "https://doi.org/10.3390/molecules23030631" @default.
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