NOMENCLATURE
| D | dilution rate (h-1) |
| F | reactor feeding rate (L/h) |
| MP | mass of product in the fermenting medium (g) |
| MS | mass of substrate in the fermenting medium (g) |
| MX | mass of biomass in the fermenting medium (g) |
| P | product concentration measured in the aqueous phase (g/L) |
| P’ | product concentration calculated by Equation (7) (g/L) |
| Q | process productivity (*) (g/Lxh) |
| Q’ | process productivity (**) (g/L.h) |
| RP | product production rate (*) (g/Lxh) |
| R’P | product production rate (**) (g/Lxh) |
| RS | substrate consumption rate (*) (g/Lxh) |
| R’S | substrate consumption rate (**)(g/Lxh) |
| RX | biomass growth rate (g/Lxh) |
| S | substrate concentration measured in the aqueous phase (g/L) |
| S’ | substrate concentration calculated by Equation (6) (g/L) |
| S0 | substrate concentration of the feeding mash (g/L) |
| t | time (h) |
| V | volume of the fermenting medium (L) |
| Va | volume of the aqueous phase (L) |
| Vi | volume of the inoculum (L) |
| X | biomass concentration (dry matter) (g/L) |
| YP | product yield factor (*) (g/g) |
| Y’P | product yield factor (**) (g/g) |
| YX | biomass yield factor (*) (g/g) |
| Y’X | biomass yield factor (**) (g/g) |
| θ | duration of the reactor feeding phase (h) |
| ρ | density of the microorganism (g/L) |
| σ | fraction of dry matter in the biomass (-) |
i subscript indicating the value at t = 0
f subscript indicating the value at t = θ
(*) calculated disregarding the biomass volume
(**) calculated taking account of the biomass volume
Forrás
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