Table 3 Regression analysis of polyphenolic content from the methanolic bran extracts of different rice varieties with DPPH radical scavenging, Nitric oxide (NO) scavenging, Total Antioxidant Assay (TAA), MTT assay and Reducing Power (RP).

Vasumathi

R² value

0.9678

0.9163

0.9624

0.9521

0.9120

Slope

6.435366

3.385976

0.0870031

-0.0743902

0.0077537

P value

0.0025

0.0105

0.0031

0.0045

0.0114

Growth rate

66.18

61.46

30.93

-20.63

57.52

Yamini

R² value

0.9367

0.9067

0.9074

0.9267

0.9029

Slope

4.82466

3.172851

0.0123

-0.0579186

0.0123534

P value

0.0069

0.0125

0.0849

0.0086

0.0132

Growth rate

51.68

60.85

32.24

-23.35

59.25

Jyothi

R² value

0.9615

0.9831

0.9705

0.9388

0.9777

Slope

2.045763

2.002225

0.0472744

-0.025

0.0089229

P value

0.0033

0.0009

0.0022

0.0066

0.0014

Growth rate

37.95

61.04

30.51

-30.9

41.61

Njavara

R² value

0.9287

0.9733

0.9538

0.9233

0.9848

Slope

1.199922

1.561774

0.039325

-0.0171115

0.0101612

P value

0.0083

0.0019

0.0043

0.0092

0.0008

Growth rate

25.28

46.37

27.86

-38.09

46.91