Y
X/S
|
Yield of biomass with respect to substrate (g g−1)
|
Y
SA/S
|
Yield of succinic acid with respect to substrate (g g−1)
|
Y
AA/S
|
Yield of acetic acid with respect to substrate (g g−1)
|
Y
PA/S
|
Yield of propionic acid with respect to substrate (g g−1)
|
Y
SA/X
|
Yield of succinic acid with respect to biomass (g g−1)
|
Y
AA/X
|
Yield of acetic acid with respect to biomass (g g−1)
|
Y
PA/X
|
Yield of propionic acid with respect to biomass (g g−1)
|
m
|
Cell maintenance (g g−1 h−1)
|
r
s
|
Instantaneous substrate consumption rate (g h−1)
|
r
SA
|
Instantaneous succinic acid production rate (g h−1)
|
r
AA
|
Instantaneous acetic acid production rate (g h−1)
|
r
PA
|
Instantaneous propionic acid production rate (g h−1)
|
r
x
|
Instantaneous cell growth rate (g h−1)
|
μ
s
|
Specific substrate consumption rate (h−1)
|
μ
SA
|
Specific succinic acid production rate (h−1)
|
μ
AA
|
Specific acetic acid production rate (h−1)
|
μ
PA
|
Specific propionic acid production rate (h−1)
|
μ
x
|
Specific cell growth rate (h−1)
|
DCW
|
Dry cell weight
|
OD
600
|
Optical density at 600 nm
|
P/A
|
Ratio of propionic to acetic acid (mol mol−1 or g g−1)
|
S/A
|
Ratio of succinic to acetic acid (mol mol−1 or g g−1)
|
FBB
|
Fibrous bed bioreactor
|