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Table 2 List of parameters in the model for mixotrophic growth co-limited by nitrogen and phosphorus

From: Optimisation of microalgal cultivation via nutrient-enhanced strategies: the biorefinery paradigm

Type

Symbol

Parameter description

Value

Units

References

Associated to growth

µmax

Maximum specific growth rate

0.106

h−1

Figueroa-Torres et al. [42]

qN,0

Minimum nitrogen quota

0.877

gN gC−1

Figueroa-Torres et al. [42]

qP,0

Minimum phosphorus quota

0.016

gPO4 gC−1

This work

Ks,A

Acetate saturation constant

1.789

gC L−1

Figueroa-Torres et al. [42]

ki,A

Acetate inhibition constant

0.110

gC L−1

Figueroa-Torres et al. [42]

Ks,I

Light saturation constant

1.4

µmol m−2 s−1

Mairet et al. [53]

ki,I

Light inhibition constant

186.5

µmol m−2 s−1

Figueroa-Torres et al. [42]

YX/A

Acetate yield coefficient

0.059

gC gC−1

Figueroa-Torres et al. [42]

Ϭ

Light attenuation coefficient

1

L gC−1 m−1

Figueroa-Torres et al. [42]

Associated to N and P -uptake

ρN,max

Maximum N uptake rate

44.01

gN gC−1 h−1

This work*

K*

Saturation constant, No

0.300

gN L−1

This work*

n

Shape-controlling parameter

14.54

This work*

ФN

N Uptake regulation coefficient

143.9

L gC−1

This work*

Ks,N

Uptake saturation constant, N

0.163

gN L−1

Figueroa-Torres et al. [42]

ki,N

Uptake inhibition constant, N

0.113

gN L−1

Figueroa-Torres et al. [42]

Ks,A:N

Uptake saturation constant, A:N

1.004

gC L−1

Figueroa-Torres et al. [42]

ki,A:N

Uptake inhibition constant, A:N

1.098

gC L−1

Figueroa-Torres et al. [42]

KP

P quota supporting N uptake

0.057

gPO4 gC−1

This work

ρP,max

Maximum P uptake rate

21.10

gPO4 gC−1 h−1

This work

Ks,P

Uptake saturation constant, P

2.299

gPO4 L−1

This work

ki,P

Uptake inhibition constant, P

0.004

gPO4 L−1

This work

Associated to starch and lipid formation

r1

Starch formation rate (R1)

0.058

gC gC−1

This work*

Ks,S

Saturation constant (R1)

0.000

gN L−1

This work*

ki,S

Inhibition constant (R1)

0.205

gN L−1

This work*

nS

Shape parameter (R1)

4.17

This work*

k1

Regulation constant (R1)

0.108

This work*

ФS

Regulation coefficient (R1)

0.775

L gC−1

This work*

r2

Starch degradation rate (R2)

0.005

gC gC−1

This work*

ksat,S

Starch saturation constant (R2)

0.018

This work

r3

Lipid formation rate (R3)

0.191

gN gC−1 h−1

This work*

Ks,L

Saturation constant (R3)

0.012

gN L−1

This work*

ki,L

Inhibition constant (R3)

0.091

gN L−1

This work*

nL

Shape parameter (R3)

2.01

This work*

k2

Regulation constant (R3)

0.153

This work*

ФL

Regulation coefficient (R3)

0.000

L gC−1

This work*

r4

Lipid degradation rate (R4)

0.007

gN gC−1 h−1

This work*

ksat,L

Lipid saturation constant (R4)

0.079

This work

  1. * Parameter values were re-identified from those established in Figueroa-Torres et al. [42]