Bioactive Substances, Heavy Metals, and Antioxidant Activity in Whole Fruit, Peel, and Pulp of Citrus Fruits
Table 6
Correlation coefficients between ADPH•+ or DPPH• and content of phenolic compounds, ascorbic acid, and tannins for citrus pulp (F), peel (P), and whole fruits (W).
Fruit/index
Part
Orange
Pomelo
Mandarin
Lemon
Key lime
Red grapefruit
Green grapefruit
White grapefruit
F
0.158
-0.358
0.235
-0.163
0.478
0.241
-0.074
-0.326
P
0.063
0.176
-0.273
-0.009
0.019
0.460
-0.614
W
0.265
0.052
0.190
-0.029
0.488
-0.086
0.287
F
-0.082
0.179
0.371
-0.427
0.240
-0.473
0.021
-0.030
P
-0.584
-0.398
-0.489
0.483
-0.204
0.329
-0.704
-0.092
W
-0.147
0.228
-0.177
0.113
0.038
-0.549
-0.013
-0.319
F
0.485
0.038
0.013
-0.216
-0.470
-0.132
0.485
0.079
P
-0.021
0.519
-0.257
-0.031
0.236
0.183
-0.243
W
0.413
-0.089
-0.424
-0.026
0.245
0.218
F
-0.719
0.429
0.241
-0.359
-0.104
-0.183
-0.448
P
0.172
0.127
0.137
0.080
0.409
0.422
-0.378
0.144
W
0.176
-0.308
-0.509
0.274
-0.509
-0.553
-0.354
0.048
F
-0.401
0.535
0.432
0.311
-0.057
-0.009
P
0.442
-0.242
-0.324
0.405
-0.187
-0.500
0.328
W
-0.566
-0.051
-0.461
-0.147
-0.378
0.026
F
-0.184
-0.382
-0.082
-0.381
-0.618
0.270
-0.499
P
-0.017
0.043
0.222
0.440
-0.105
W
-0.473
-0.251
-0.146
-0.120
-0.155
-0.595
Correlation is significant at . Correlation is significant at .
