Table 2.
Correlation of phenolic contents 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).
| TPC vs DPPH scavenging | TPC vs NO scavenging | TPC vs TAA | TPC vs MTT assay |
TPC vs RP | |
|---|---|---|---|---|---|
| Vasumathi | |||||
| R value | 0.984 | 0.957 | 0.981 | -0.976 | 0.955 |
| P value | 0.00247 | 0.0105 | 0.00313 | 0.00451 | 0.0114 |
| Yamini | |||||
| R value | 0.968 | 0.952 | 0.953 | -0.963 | 0.950 |
| P value | 0.00689 | 0.0125 | 0.0123 | 0.00862 | 0.0132 |
| Jyothi | |||||
| R value | 0.981 | 0.992 | 0.985 | -0.969 | 0.989 |
| P value | 0.00325 | 0.000938 | 0.00217 | 0.00655 | 0.00142 |
| Njavara | |||||
| R value | 0.964 | 0.987 | 0.977 | -0.961 | 0.992 |
| P value | 0.00826 | 0.00186 | 0.00427 | 0.00923 | 0.000800 |
In all the experiments number of samples (n) = 5. The pair(s) of variables with positive correlation coefficients and P values below 0.050 tend to increase together. For the pairs with negative correlation coefficients and P values below 0.050, one variable tends to decrease while the other increases. For pairs with P values greater than 0.050, there is no significant relationship between the two variables.