Table 3 Pearson’s correlation coefficients among antioxidants and phenolic components of oregano accessions.
TFC | TPC | DPPH | Rosmarinic acid | Chlorogenic acid | Cinnamic acid | Quercetin | Caffeic acid | Syringic acid | Benzoic acid | vanillic acid | Gallic acid | Apigenin | Chicoric acid | Luteolin | Kaempferol | Naringenin | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
TFC | 1.000 | ||||||||||||||||
TPC | 0.573** | 1.000 | |||||||||||||||
DPPH | 0.076 | 0.279 | 1.000 | ||||||||||||||
Rosmarinic acid | 0.424 | 0.227 | 0.458* | 1.000 | |||||||||||||
Chlorogenic acid | 0.104 | 0.294 | −0.171 | −0.215 | 1.000 | ||||||||||||
Cinnamic acid | −0.396 | −0.011 | 0.004 | −0.157 | 0.033 | 1.000 | |||||||||||
Quercetin | −0.001 | −0.366 | −0.602** | −0.403 | 0.034 | −0.443* | 1.000 | ||||||||||
Caffeic acid | 0.098 | 0.448* | 0.006 | −0.229 | 0.675** | −0.044 | 0.012 | 1.000 | |||||||||
Syringic acid | 0.148 | 0.474* | −0.045 | −0.168 | 0.638** | −0.036 | −0.043 | 0.972** | 1.000 | ||||||||
Benzoic acid | −0.121 | 0.278 | 0.047 | −0.291 | 0.519* | −0.103 | 0.099 | 0.802** | 0.703** | 1.000 | |||||||
Vanillic acid | −0.084 | −0.361 | 0.188 | 0.407 | −0.658** | 0.047 | −0.107 | −0.925** | −0.936** | −0.609** | 1.000 | ||||||
Gallic acid | 0.470* | 0.224 | 0.031 | 0.070 | 0.376 | −0.385 | 0.379 | 0.611** | 0.599** | 0.493* | −.529* | 1.000 | |||||
Apigenin | −0.256 | −0.372 | −0.354 | −0.415 | −0.014 | −0.338 | 0.499* | −0.103 | −0.110 | −0.131 | −0.089 | −0.170 | 1.000 | ||||
Chicoric acid | 0.735** | 0.073 | 0.208 | 0.616** | −0.091 | −0.466* | 0.101 | −0.157 | −0.122 | −0.202 | 0.217 | 0.554** | −0.290 | 1.000 | |||
Luteolin | 0.206 | −0.064 | 0.155 | 0.635** | −0.357 | 0.083 | −0.108 | −0.383 | −0.366 | −0.379 | 0.517* | −0.069 | −0.159 | 0.345 | 1.000 | ||
Kaempferol | −0.058 | −0.115 | −0.057 | −0.019 | −0.238 | 0.331 | −0.116 | −0.130 | −0.134 | −0.176 | 0.195 | −0.232 | −0.051 | −0.208 | 0.171 | 1.000 | |
Naringenin | −0.120 | 0.197 | −0.031 | −0.263 | 0.466* | −0.075 | 0.189 | 0.787** | 0.672** | 0.922** | −0.620** | 0.508* | −0.004 | −0.187 | −0.281 | −0.163 | 1.000 |
