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Table 4

Specific growth rate and final optical density (OD750) of Chlorella sorokiniana NIES-2173 and cultivation conditions using different mediums

MediumSpecific growth rate (d−1)Final OD750Final pHNH3 concentration (mM)
InitialFinal
C-medium 0.57 ± 0.16 0.71 ± 0.01 10.5 
Untreated anaerobic digestion effluent (ADE) Without dilution 0.32 ± 0.04a 0.08 ± 0.01b 8.9 0.85 13.2 
3-fold dilution 0.43 ± 0.05 0.23 ± 0.02b 9.3 0.35 7.15 
6-fold dilution 0.45 ± 0.11 0.26 ± 0.03b 9.6 0.16 3.40 
10-fold dilution 0.47 ± 0.04 0.43 ± 0.03b 10.1 0.08 2.12 
Treated ADE 0.54 ± 0.09 0.71 ± 0.02 11.2 
MediumSpecific growth rate (d−1)Final OD750Final pHNH3 concentration (mM)
InitialFinal
C-medium 0.57 ± 0.16 0.71 ± 0.01 10.5 
Untreated anaerobic digestion effluent (ADE) Without dilution 0.32 ± 0.04a 0.08 ± 0.01b 8.9 0.85 13.2 
3-fold dilution 0.43 ± 0.05 0.23 ± 0.02b 9.3 0.35 7.15 
6-fold dilution 0.45 ± 0.11 0.26 ± 0.03b 9.6 0.16 3.40 
10-fold dilution 0.47 ± 0.04 0.43 ± 0.03b 10.1 0.08 2.12 
Treated ADE 0.54 ± 0.09 0.71 ± 0.02 11.2 

Dunnett's test was conducted on specific growth rate and final OD750 values (n = 3) assuming C-medium condition was the control.

aSignificantly different at the 5% level.

bSignificantly different at the 1% level.

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