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. 2017 Jul 24;6(3):59. doi: 10.3390/antiox6030059

Table 2.

Spearman’s correlation coefficients between phytochemical content and antioxidant parameters of fruits and vegetables before and after 15 days of storage at 4 °C.

TP Gal Pro Chl Caf Van Syr p-Cou Fer Sin Sal Ell Cin Vit. C-DNP Vit. C-AOAC Vit. C-DCPIP TA AA-DPPH AA-ABTS
Gal 0.054
Pro 0.110 0.346 *
Chl 0.423 ** 0.220 0.137
Caf 0.324 * 0.259 0.202 0.836 **
Van 0.087 0.029 0.356 * 0.235 0.308
Syr 0.403 * 0.064 0.229 0.458 ** 0.497 ** 0.584 **
p-Cou 0.109 0.191 0.486 ** 0.114 0.154 0.588 ** 0.400 *
Fer 0.126 0.332 * 0.398 * 0.446 ** 0.426 ** 0.690 ** 0.489 ** 0.526 **
Sin 0.452 ** 0.311 0.092 0.549 ** 0.499 ** 0.393 * 0.610 ** 0.187 0.452 **
Sal 0.068 0.413 * 0.193 * 0.362 * 0.342 * 0.510 ** 0.335 * 0.454 ** 0.589 ** 0.585 **
Ell 0.171 0.342 * 0.313 0.311 0.291 0.583 ** 0.412 * 0.433 ** 0.803 ** 0.482 ** 0.579 **
Cin 0.134 0.261 0.330 * 0.146 0.233 0.577 ** 0.546 ** 0.586 ** 0.533 ** 0.426 ** 0.487 ** 0.468 **
Vit. C-DNP 0.412 * 0.011 0.341 * 0.127 0.052 0.361 * 0.078 0.150 0.304 0.056 0.093 0.453 ** 0.006
Vit. C-AOAC 0.396 * −0.066 0.106 0.101 0.179 0.351 * 0.029 0.049 0.304 * 0.174 0.053 0.384 * 0.034 0.650 **
Vit. C-DCPIP 0.525 ** 0.098 0.184 0.358 * 0.319 0.383 * 0.383 * 0.177 0.299 0.541 ** 0.204 0.417 * 0.157 0.469 ** 0.535 **
TA 0.661 ** 0.175 −0.012 0.335 * 0.398 * 0.173 0.548 ** 0.087 0.237 0.493 ** 0.216 0.306 0.197 0.267 0.194 0.563 **
AA-DPPH 0.808 ** −0.097 −0.034 0.277 0.168 0.014 0.121 −0.057 −0.108 0.299 −0.019 −0.077 −0.174 0.446 ** 0.484 ** 0.440 ** 0.429 **
AA-ABTS 0.690 ** −0.237 0.076 0.208 0.081 0.028 0.117 0.093 −0.105 0.234 −0.020 −0.014 −0.138 0.434 ** 0.528 ** 0.419 ** 0.482 * 0.867 **
AA-FRAP 0.458 ** −0.120 0.109 0.166 0.119 0.072 −0.069 −0.100 0.029 0.103 −0.051 0.115 −0.150 0.519 ** 0.650 ** 0.567 ** 0.176 0.613 ** 0.660 **

TP = Total phenolics, Gal = Gallic acid, Pro = protocatechuic acid, Chl = chlorogenic acid, Caf = caffeic acid, Van = vanillic acid, Syr = syringic acid, p-Cou = para-coumaric acid, Fer = ferulic acid, Sin = sinapic acid, Sal = salicylic acid, Ell = ellagic, Cin = trans-cinnamic acid, Vit. C-DNP = Vitamin C estimated by DNP method, Vit. C-AOAC = Vitamin C estimated by AOAC method, Vit. C-DCPIP = Vitamin C estimated by DCPIP method, TA = Total anthocyanins, AA = Antioxidant.