Isolation, Characterization and Antioxidant Activities of Polysaccharides from Tussilago farfara

摘要

Tussilago farfara polysaccharides (TPS) were extracted from Tussilago farfara using hot water. Two water-soluble polysaccharide fractions (TPS-2-1 and TPS-2-2) were separated. The HPGPC analysis showed that the average molecular weight of two polysaccharides were approximately 456.6 and 5.54 kDa, respectively. The monosaccharide components of two polysaccharides were characterized by GC, among which TPS-2-1 was composed of mannose, glucose and galactose at the molar ratio of 2.467:1.158:1; TPS-2-2 consisted of mannose and glucose at the molar ratio of 1.798:1, TPS-2-1 had higher scavenging effects on DPPH activities.