Purification, characterization and anti-proliferation activities of polysaccharides extracted from Viscum coloratum (Kom.) Nakai

Polysaccharides with immunomodulating activity from roots of Gentiana crassicaulis

“…The polysaccharide fractions GCP-I-I and GCP-II-I were characterized by 1D NMR spectroscopy and compared with chemical shift values from literature (Chai & Zhao, 2016;Hromádková, Košt'álová, Vrchotová, & Ebringerová, 2014;Košt'álová, Hromádková, & Ebringerová, 2013;Li, Fan, & Ding, 2011;Zou et al, 2014). Fraction GCP-II-I had somewhat better solubility than fraction GCP-I-I, due to lower Mw (Austarheim, et al, 2012b;Shakhmatov, et al, 2015) and…”

Purification and Partial Structural Characterization of a Complement Fixating Polysaccharide from Rhizomes of Ligusticum chuanxiong

“…To characterize the polysaccharide fraction LCP-I-I, Fourier transform infrared (FT-IR) spectrometer (FT-IR) of the polysaccharide was performed in the range of 4000–400 cm −1 . As shown in Figure 3 , the FT-IR images of LCP-I-I gave characteristic absorptions of polysaccharides, such as peaks at 3436.16 cm −1 , 2627.49 cm −1 , 1632.91 cm −1 , 1419.95 cm −1 and 1036.31 cm −1 [ 25 , 26 , 27 , 28 ]. The absence of 1250 cm −1 and 1735 cm −1 indicated that no methyl or acetyl esters were present in fraction LCP-I-I [ 29 , 30 ].…”

“…Other signals such as 109.23 ppm, 107.29 ppm, 107.13 ppm, and 107.06 ppm corresponded to α- l -Ara f ; 104.33 ppm correspond to β- d -Glc p ; while 106.90 ppm and 106.38 ppm correspond to β -d -Gal p . The signals at 101.12 ppm and 16.55 ppm represented the anomeric carbon and C-6 of α- l -Rha [ 27 ]. These results suggested that fraction LCP-I-I is a typical pectic polysaccharide, with a HG region, RG-I region and arabinogalactan side chains.…”

A Pectic Polysaccharide from Sijunzi Decoction Promotes the Antioxidant Defenses of SW480 Cells

“…The polysaccharide fraction SJZDP-II-I was also characterized by 1D NMR spectroscopy and the chemical shift values compared with data from the literature [ 11 , 33 , 34 , 35 , 36 ]. Typically, the anomeric 1 H signals of α-pyranoside are found over 5 ppm while those of β-pyranoside are at less than 5 ppm [ 37 ].…”

“…The 13 C signals at 175.74 ppm corresponded to carbonyl carbon of unesterified α-1, 4-Gal p A, and the 103.14 ppm corresponded to C-1 of α-1, 4-Gal p A. Other signals such as 107.29 ppm corresponded to α- L-Ara f , while 106.80 ppm, 106.33 ppm and 104.29 ppm were corresponded to β- d -Gal p [ 33 ]. The signals at 16.75 ppm represented the C-6 of α- l -Rha [ 36 ].…”