Structure analysis of a neutral polysaccharide isolated from green tea

Structure characterization of a novel neutral polysaccharide isolated from Ganoderma lucidum fruiting bodies

“…Signals of FYGL-1 in 1D 1 H and 13 C NMR and 2D NMR (HSQC, COSY, NOESY and TOCSY) spectra were assigned as completely as possible, based on the monosaccharide analysis, linkage analysis and chemical shifts reported in the literature (Evelina et al, 2009;Jin et al, 2010;Soumitra, Indranil, Dilip, & Syed, 2006;Wang, Wei, & Jin, 2009). 1 H NMR spectrum (Fig.…”

Study on the purification and characterization of a polysaccharide conjugate from tea flowers

“…We found that the content of total polysaccharides in tea flowers were much higher than that of in leaves [10]. In our previous studies, 31 a neutral polysaccharide on skin-protective activity from low32 grade coarse green tea was isolated, characterized [11,12]. Herein, a polysaccharide conjugate from tea flowers (TFPS) was isolated and characterized by gas chromatography, high performance gel permeation chromatography, ion chromatography, infrared spectroscopy, 1 H NMR, 13 C NMR spectroscopy and the atomic force microscopy.…”

“…Lee et al [8] obtained an acidic polysaccharide from green tea with a molecular weight of 80 kDa. We have obtained a neutral polysaccharide from low-grade coarse green tea with a molecular weight of 21,247 Da [12]. Recently, Monobe et al [5] studied the molecular weight distribution of a crude polysaccharide derived from green tea and found there were three major peaks of around 20 × 10 4 , 1 × 10 4 , and 0.1 × 10 4 MW.…”

Green Tea as an Agricultural Based Health Promoting Food: The Past Five to Ten Years

“…Monosaccharide and water-soluble polysaccharides comprise nearly 20% of the GT leaf and are also compounds of interest due to their links to health [9]. Lastly, polysaccharide conjugates have been isolated but their structures vary depending on the origin of the tea [12,13]. …”