Development of a Rapid and Simple Method to Remove Polyphenols from Plant Extracts

Figure 5

Mean (±SD) percentage of DPPH scavenging capacity of EGCG (epigallocatechin gallate) (a), gallic acid (b), vanillin (c), and fresh tea flush (d), before and after treatment with polyvinylpolypyrrolidone treatment (PVPPT).

(a)

(b)

(c)

(d)