| 碳源种类 Type of carbon source | 碳源名称 Carbon source | 主成分相关系数 Correlation index | |
| PC1 | PC2 | ||
| 碳水化合物类 (Carbohydrates, CH) | D-纤维二糖D-cellobiose | −0.207 | 0.810 |
| α-D-乳糖α-D-lactose | −0.279 | 0.577 | |
| β -甲基-D-葡萄糖苷β -methyl-D-glucoside | 0.232 | −0.715 | |
| D-木糖D-xylose | −0.534 | −0.224 | |
| i-赤藓糖醇i-erythritol | −0.523 | −0.775 | |
| D-甘露醇D-mannitol | 0.778 | 0.247 | |
| N-乙酰-D 葡萄糖氨N-acetyl-D-glucosamine | −0.392 | 0.371 | |
| 1-磷酸葡萄糖glucose-1-phosphate | −0.029 | −0.840 | |
| D,L-α-磷酸甘油D,L-α-glycerol phosphate | −0.830 | −0.108 | |
| D-半乳糖酸-γ-内酯D-galactonic acid-γ-lactone | −0.865 | −0.098 | |
| 氨基酸类 (Amino acids, AA) | L-精氨酸L-arginine | −0.697 | −0.232 |
| L-天门冬酰胺L-asparagine | −0.641 | −0.073 | |
| L-苯丙氨酸L-phenylalanine | 0.037 | 0.784 | |
| L-丝氨酸L-serine | 0.214 | 0.344 | |
| L-苏氨酸L-threonine | −0.250 | 0.823 | |
| 甘氨酰-L-谷氨酸glycyl-L-glutamic acid | 0.482 | −0.576 | |
| 羧酸类 (Carboxylic acids, CA) | D-葡萄糖胺酸D-glucosaminic acid | −0.566 | 0.619 |
| D-半乳糖醛酸D-galacturonic acid | −0.579 | 0.454 | |
| 丙酮酸甲酯pyruvatic acid methyl ester | 0.162 | 0.882 | |
| γ-羟丁酸γ-hydroxybutyric acid | 0.645 | 0.280 | |
| 衣康酸itaconic acid | 0.595 | −0.018 | |
| α-丁酮酸α-ketobutyric acid | 0.816 | −0.265 | |
| D-苹果酸D-malic acid | −0.259 | 0.345 | |
| 酚酸类 (Phenolic compounds, PC) | 2-羟基苯甲酸2-hydroxybenzoic acid | 0.510 | 0.249 |
| 4-羟基苯甲酸4-hydroxybenzoic acid | 0.922 | 0.257 | |
| 多聚物类 (Polymers, PL) | 吐温40 Tween 40 | 0.698 | −0.653 |
| 吐温80 Tween 80 | −0.477 | 0.709 | |
| α-环式糊精α-cyclodextrin | 0.706 | 0.485 | |
| 肝糖glycogen | 0.929 | 0.069 | |
| 胺类 (Amines, AMI) | 苯乙胺phenyl ethylamine | 0.188 | 0.424 |
| 腐胺 putrescine | −0.682 | −0.655 | |