Structural characterization of rhamnogalacturonan domains from Panax ginseng C. A. Meyer

Rhamnogalacturonan I (RG-I) and rhamnogalacturonan II (RG-II) domains were isolated from ginseng pectin by alkali saponification and endo-polygalacturonase hydrolysis, then purified by anion-exchange and size-exclusion chromatography. Monoclonal antibody detection indicated that ginseng RG-I contained →4)-α-GalpA-(1→2)-α-Rhap-(1→ repeating units as backbone, with arabinan, galactan and type II arabinogalactan (AG-II) as side chains. The use of...