From: Characterization of volatile fatty-acid utilization in Escherichia coli aiming for robust valorisation of food residues
Component
Concentration (g L−1)
Acetic acid
0.81
Propionic acid
0.13
Butyric acid
0.53
Isovaleric acid
0.49
Valeric acid
0.09
Caproic acid
2.01
Free phosphate
0.018
Free ammonia
0.123