Table 2.

Growth parameters of C. elegans during biotransformation of fluoranthene in the RDBR^a

RDBR process condition	Biomass (g)	Growth rate (g/h)	Volumetric productivity (mM/liter)		Specific productivity (mM/g of biomass)
			Biofilm cells	Extracellular broth	Biofilm cells	Extracellular broth
Niche mimicking (with shaft rotation)	12.47 ± 0.70	0.050 ± 0.005	0.072 ± 0.004	0.169 ± 0.014	0.072 ± 0.001	0.169 ± 0.005
Submerged (without shaft rotation)	4.0 ± 0.3	0.014 ± 0.001	0.021 ± 0.003	0.038 ± 0.006	0.065 ± 0.005	0.118 ± 0.010

^aProductivities were calculated based on 3-fluoranthene-β-glucopyranoside concentrations (mM), the volume of medium was 12.5 liters, and the growth period was 230 h. Error ranges indicate 1 standard deviation from the mean.