Scientific Reports

Table 2 Volumetric and areal biomass productivities of Tetraselmis sp. CTP4 grown semi-continuously in 35- and 100-m³ tubular photobioreactors (PBRs) presented in ash free dry weight. The photosynthetic efficiency (PE) obtained in the different growth periods is also presented. Using a semi-continuous growth system, four different culture periods were established throughout the growth trial (17^th Oct–15^th Dec). Different letters indicate significant differences in productivity and PE between PBRs.

From: Scale-up and large-scale production of Tetraselmis sp. CTP4 (Chlorophyta) for CO₂ mitigation: from an agar plate to 100-m³ industrial photobioreactors

PBR	Biomass productivity				PE
	Total	Max	Total	Max	(%)
	g L⁻¹ d⁻¹	g L⁻¹ d⁻¹	g m⁻² d⁻¹	g m⁻² d⁻¹	(%)
3 *5 m* ³
17^th − 30^th Oct	0.07	0.18	18.4	46.8	2.62
2^nd − 14^th Nov	0.06	0.15	15.8	39.1	2.59
17^th − 29^th Nov	0.04	0.15	10.3	41.7	2.20
1^st − 14^th Dec	0.04	0.10	9.5	27.1	2.09
Mean	0.05 ± 0.02^a	0.15 ± 0.03^a	13.5 ± 4.3^a	38.7 ± 8.4^a	2.38 ± 0.27^a
*100 m* ³
17^th − 30^th Oct	0.10	0.19	24.9	42.4	3.54
2^nd − 14^th Nov	0.08	0.20	20.0	42.8	3.28
17^th − 29^th Nov	0.07	0.18	18.5	40.4	3.46
1^st − 14^th Dec	0.07	0.10	18.0	23.1	3.11
Mean	0.08 ± 0.01^b	0.17 ± 0.05^a	20.3 ± 3.2^b	37.2 ± 9.4^a	3.35 ± 0.19^b

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