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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.
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BMC Research Notes

ISSN: 1756-0500

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