The polysaccharide samples were dissolved
in distilled water to form sample solution in final concentrations
of 0.1, 1, 2, 3, 4, and 5 mg/mL, respectively. The sample solution
was added to ABTS radical solution in a ratio of 1:20, and the mixture
solution was incubated for 6 min at room temperature.
Scavenging activity(%)
=
1
−
Asample
Acontrol
×
100
where Acontrol is the absorbance of the ABTS radical solution without
sample and Asample is the absorbance of the ABTS radical solution
with tested samples.