Table 1.
Pearson correlation analyses between the metabolites and the b* value of Y/W
| Metabolites | R | R2 | p |
|---|---|---|---|
| Primary metabolites | |||
| Silanol | −0.440 | 0.194 | 0.459 |
| Glycerol | −0.108 | 0.012 | 0.863 |
| Myo-Inositol | −0.656 | 0.430 | 0.229 |
| D-Psicofuranose | 0.940* | 0.884 | 0.018 |
| D-Allofuranose | −0.923* | 0.852 | 0.026 |
| D-(−)-Fructose | −0.621 | 0.386 | 0.263 |
| D-Glucose | −0.964** | 0.929 | 0.008 |
| D-Lactose | −0.712 | 0.507 | 0.178 |
| Sucrose | −0.749 | 0.561 | 0.145 |
| Boric acid | −0.038 | 0.001 | 0.952 |
| Lactic acid | −0.534 | 0.285 | 0.354 |
| Oxalic acid | −0.587 | 0.345 | 0.298 |
| Pipecolic acid | −0.581 | 0.338 | 0.305 |
| 4-Hydroxybutanoic acid | −0.808 | 0.653 | 0.098 |
| Butanedioic acid | −0.708 | 0.501 | 0.181 |
| 2-Butenedioic acid | −0.495 | 0.245 | 0.397 |
| Nonanoic acid | −0.668 | 0.446 | 0.218 |
| Malic acid | 0.810 | 0.656 | 0.097 |
| 4-Aminobutanoic acid | 0.221 | 0.049 | 0.721 |
| L-Threonic acid | 0.277 | 0.077 | 0.652 |
| L-(+)-Tartaric acid | −0.242 | 0.059 | 0.695 |
| 2-Keto-l-gluconic acid | 0.262 | 0.069 | 0.671 |
| Terephthalic acid | 0.916* | 0.839 | 0.029 |
| Shikimic acid | 0.687 | 0.472 | 0.200 |
| Citric acid | 0.906* | 0.821 | 0.034 |
| 2-Ketoglutaric acid | −0.627 | 0.393 | 0.258 |
| Quininic acid | 0.997** | 0.994 | 0.000 |
| Ascorbic acid | −0.018 | 0.000 | 0.977 |
| Palmitic acid | −0.436 | 0.190 | 0.463 |
| Linoelaidic acid | −0.666 | 0.444 | 0.219 |
| α-Linolenic acid | −0.461 | 0.213 | 0.435 |
| Sebacic acid | 0.314 | 0.099 | 0.607 |
| L-Valine | −0.255 | 0.065 | 0.679 |
| L-Isoleucine | −0.675 | 0.456 | 0.211 |
| L-Serine | −0.648 | 0.420 | 0.237 |
| L-Threonine | −0.396 | 0.157 | 0.510 |
| Serine | −0.136 | 0.018 | 0.828 |
| L-Aspartic acid | −0.238 | 0.057 | 0.700 |
| β-Alanine | 0.160 | 0.026 | 0.798 |
| L-5-Oxoproline | −0.688 | 0.473 | 0.199 |
| L-Glutamic acid | 0.783 | 0.613 | 0.117 |
| L-Tyrosine | −0.273 | 0.075 | 0.657 |
| Glyceric acid | 0.925* | 0.856 | 0.024 |
| Stearic acid | −0.510 | 0.260 | 0.380 |
| 1-Monopalmitin | −0.430 | 0.185 | 0.470 |
| Glycerol monostearate | −0.355 | 0.126 | 0.557 |
| Secondary metabolite | |||
| Phenylalanine | 0.657 | 0.432 | 0.228 |
| Coumaric acid | −0.587 | 0.345 | 0.298 |
| Dihydrokaempferol(−D) | −0.560 | 0.314 | 0.327 |
| Dihydromyricetin | 0.956* | 0.914 | 0.011 |
| Dihydroquercetin | 0.468 | 0.219 | 0.427 |
| Kaempferol(−D) | −0.517 | 0.267 | 0.373 |
| Myricetin(−D) | 0.815 | 0.664 | 0.092 |
| Quercetin(−D) | 0.931* | 0.867 | 0.022 |
| Catechin(−D) | 0.874 | 0.764 | 0.053 |
| Isorhamnetin(−D) | 0.972** | 0.945 | 0.006 |
Note: * indicates significant correlation at P < 0.05 level, with ** indicate highly significant correlation at P < 0.01 level