Fig. 8
From: Preparation, structural characterization and in vitro activity of ginger polysaccharide
ABTS + free radical scavenging rate of ginger polysaccharide and its derivatives (a). Hydroxyl radical scavenging rate of ginger polysaccharides and its derivatives (b). DPPH radical scavenging rate of ginger polysaccharide and its derivatives (c). Reducing power of ginger polysaccharide and its derivatives (d). In vitro antioxidant activity test, 6 gradient ginger polysaccharide solutions were selected to investigate the relationship between their concentration and activity. Each group of experiments was tested in parallel 3 times to find its average value and relative error value