Table 5 Four types of carbon substrates loaded on the former four principle components.

sugars and their derivatives

ß-Methyl-D-Glucoside

−0.95

0.26

−0.02

−0.01

D-Galactonic Acid y-Lactone

−0.86

0.29

0.11

−0.09

D-Xylose

−0.91

−0.25

0.10

0.24

D-Galacturonic Acid

−0.98

−0.13

−0.02

−0.03

i-Erythritol

−0.78

0.10

−0.55

0.07

D-Mannitol

−0.76

0.22

0.34

0.38

α-Cyclodextrin

−0.93

−0.17

0.14

0.10

N-Acetyl-D-Glucosamine

−0.94

0.21

0.15

0.03

Glycogen

−0.84

−0.51

−0.09

0.03

D-Glucosaminic Acid

−0.94

−0.12

0.03

0.21

D-Cellobiose

−0.91

0.12

0.31

0.19

α-D-Lactose

−0.78

−0.18

0.52

0.10

fatty acids and their derivatives

Pyruvic Acid Methyl Ester

−0.96

0.04

0.04

0.14

Tween 40

−0.84

0.38

−0.12

−0.22

Tween 80

−0.96

0.14

−0.10

−0.07

γ-Hydroxybutyric Acid

−0.65

−0.16

−0.71

−0.09

Itaconic Acid

−0.97

0.08

−0.08

0.13

amino aicds and their derivatives

L-Arginine

−0.28

−0.30

0.20

−0.88

L-Asparagine

−0.95

0.12

0.08

0.05

L-Phenylalanine

−0.87

−0.25

−0.28

0.07

L-Serine

−0.99

0.01

0.01

−0.02

L-Threonine

−0.95

−0.18

−0.09

0.05

Glycyl-L-Glutamic Acid

−0.93

0.01

−0.35

0.10

intermediate and secondary metabolites

2-Hydroxy Benzoic Acid

−0.02

−0.65

−0.28

0.22

4-Hydroxy Benzoic Acid

−0.95

0.11

−0.07

−0.08

Glucose-1-Phosphate

−0.94

−0.09

0.26

0.17

α-Ketobutyric Acid

−0.69

−0.26

0.23

−0.58

Phenylethylamine

−0.58

−0.74

0.06

−0.14

D,L-α- Glycerol Phosphate

−0.92

−0.03

0.24

−0.15

D-Malic Acid

−0.74

0.45

−0.13

−0.39

Putrescine

−0.85

0.39

−0.22

−0.16