Microbial production of Propionic and Succinic acid from Sorbitol using Propionibacterium acidipropionici

AMB Express

Table 1 List of nomenclature

Abbreviations	Meaning
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