Skip to main content

Table 7 Correlations between the IC50 values of R. purpurea extract in DPPH, β-carotene bleaching method and TPC, TFC content

From: Nutritional evaluation, antioxidant studies and quantification of poly phenolics, in Roscoea purpurea tubers

S. no. Assay (IC50 µg/ml) Co-relation coefficient (r2)*
Phenolics Flavonoids
1. DPPH assay 0.503 0.986
2. β-carotene bleeching assay 0.501 0.984
  1. * Indicating significance at p < 0.01.