Structures of fructan and galactan from Polygonatum cyrtonema and their utilization by probiotic bacteria

Ultrasonic-Assisted Extraction of Codonopsis pilosula Glucofructan: Optimization, Structure, and Immunoregulatory Activity

“…In terms of the 13 C NMR spectrum in Figure 5 A, the signals of the CPPs appeared from 106.50 ppm to 62.90 ppm. On the basis of the DEPT135 spectrum in Figure 5 B, the carbon signals at 106.02 ppm/106.48 ppm were determined to be one quaternary carbon atom; the carbon signals at 79.77 ppm/76.92 ppm, 77.06 ppm/84.04 ppm, and 83.86 ppm/76.66 ppm were confirmed to be the tertiary carbons; and the carbon signals at 63.68 ppm/62.91 ppm and 64.92 ppm/63.26 ppm were the secondary carbons, which means the structures of the A and C units were furan fructose residues with a β glycosidic bond configuration [ 39 ]. Figure 5 C displays the results of the HSQC (blue signals) and HMBC (red signals) NMR spectra of the CPPs.…”

Physicochemical, morpho-structural, and biological characterization of polysaccharides from three Polygonatum spp

“… 1 The total polysaccharides are considered as their component index, and most biological activities including anti-oxidative, immunoregulation, and hypoglycemic effects of Polygonati rhizomes are related to polysaccharides. 34 So far, some Polygonatum polysaccharides have been reported, which include a glucofructan from P. cyrtonema , 3,4 galactomannan from P. sibiricum , 5,6 and glucomannan from P. kingianum . 7,8 However, most previous studies have focused on a single species.…”

Multiomics Reveals the Effect of Root Rot on Polygonati Rhizome and Identifies Pathogens and Biocontrol Strain

“…Therefore, the P. cyrtonema rhizome and its functional components have good utilization prospects in the development of useful medicine and food. Many health care products and medicines containing Polygonatum rhizome have been rapidly developed, and the annual demand for processed Polygonatum rhizomes is approximately 4,000 tons in China ( 5 ). However, rhizome reproduction is the main method for the agricultural cultivation of Polygonatum rhizomes, and infected P. cyrtonema plants display blight and yellow leaves, retarded growth, root rot (rhizome and stem bases), and yield losses.…”