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Table 1 List of nomenclature

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

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