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Table 6 IC50 value of standards and R. purpurea in β-carotene bleaching method

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

S. no. Extracts IC50 (µg/ml)*
1. Quercetin 8.33 ± 0.115
2. Rutin 14.06 ± 0.115
3. BHT 1.22 ± 0.017
4. R. purpurea 600.66 ± 1.154
  1. * Values are mean ± SD (n = 3), indicating significance at p < 0.01.