Table 3 Preliminary evaluation of the change in medium cost and bioreactor capital cost associated to the switch from standard medium to agricultural byproduct-based medium

Glucose concentration (kg/m³)

kg/m³

40

–

Beef extract concentration (kg/m³)

kg/m³

10

–

Soy peptone concentration (kg/m³)

kg/m³

10

–

Molasses concentration (kg/m³)

kg/m³

–

74

CMBM concentration (kg/m³)

kg/m³

–

30

BD/sugar yield (kg/kg)

kg/kg

0.44

0.235

BD productivity (kg/m³/day)

kg/m³/day

21.8

13.0

Total medium cost ($/m³)

$/m³

41

13

Reactor volume (m³)

m³

1.53

2.57

Medium cost ($/kg_{BD produced})

$/kg_{BD produced}

2.33

1.20

Bioreactor capital cost ($/kg_{BD produced})

$/kg_{BD produced}

0.10

0.16

Medium + bioreactor cost ($/kg_{BD produced})

$/kg_{BD produced}

2.42

1.36