Skip to main content
. 2022 Mar 31;27(1):20–36. doi: 10.3746/pnf.2022.27.1.20

Table 5.

Contributions and representation qualities for each polyphenol on the first three axes

Polyphenol Contribution Quality of representation


Axis 1 Axis 2 Axis 3 Axis 1 Axis 2 Axis 3
Polyphenols consumed above 20 mg/d
Hesperetin 17 142 478 17 159 637
Quercetin 3-O-rutinoside 948 33 7 948 981 988
1-Caffeoylquinic acid 948 45 6 948 993 999
1,3-Dicaffeoylquinic acid 948 45 6 948 993 999
1,4-Dicaffeoylquinic acid 948 45 6 948 993 999
3,4-Dicaffeoylquinic acid 977 19 2 977 996 998
3-Caffeoylquinic acid 830 128 31 830 958 989
4,5-Dicaffeoylquinic acid 948 45 6 948 993 999
4-Caffeoylquinic acid 762 170 58 762 932 990
5-Caffeoylquinic acid 861 87 9 861 948 957
Caffeic acid 21 784 179 21 805 984
Ferulic acid 3 156 235 3 159 394
Lariciresinol 2 236 172 2 238 410
Polyphenols consumed between 5 and 20 mg/d
Malvidin 3-O-glucoside 24 256 167 24 280 447
(−)-Epicatechin 445 274 12 445 719 731
(−)-Epigallocatechin 3-O-gallate 710 8 242 710 718 960
(−)-Epicatechin 3-O-gallate 729 17 216 729 746 962
(+)-Catechin 305 419 36 305 724 760
(+)-Gallocatechin 711 9 241 711 720 961
Procyanidin dimer B2 198 242 46 198 440 486
Naringenin 0 93 49 0 93 142
Quercetin 409 235 104 409 644 748
5-O-Galloylquinic acid 710 8 242 710 718 960
Syringic acid 48 14 162 48 62 224
Disuccinoylquinic acid 317 391 182 317 708 890
3-Feruloylquinic acid 299 548 120 299 847 967
4-Feruloylquinic acid 177 725 15 177 902 917
5-Feruloylquinic acid 163 727 10 163 890 900
Caffeoyl-glucose 317 391 182 317 708 890
o-Coumaric acid 12 6 284 12 18 302
p-Coumaric acid 61 93 456 61 154 610
trans-Ferulic acid 11 0 52 11 11 63
Pinoresinol 11 150 205 11 161 366

The axes establish the HJ-Biplot reference system and represent latent factorial variables obtained from linear combinations of the initially observed variables.