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Table 2 Comparison of our best case with a similar nitrogen-starvation study reported in literature

From: Microalgal triacylglycerides production in outdoor batch-operated tubular PBRs

Microalga

C x (0) (g L−1)

Duration (days)

Reactor type

V/Aground (m3 m−2)

P TAG, batch (g m−2 day−1)

f TAG, batch (g g−1)

r TAG, IBS, batch (g g−1 day−1)

Ref.

N. gaditana

1.5

12

Vertical tubular

0.13

3.1

18

0.02

[14]

N. sp.

1.5

12

Vertical tubular

0.04

3.2

32

0.06

This study

  1. Microalga used, initial biomass concentration (C x (0)), duration of the cultivation, reactor type, volume-to-ground area ratio (V/A ground ), TAG productivity (P TAG, batch ), TAG content (f TAG, batch ) and initial-biomass-specific TAG production rate (r TAG, IBS, batch ) at the end of the batch are shown for each study. The TAG productivity reported by [14] was re-calculated using the duration of the actual batch cultivation under N-starvation (i.e. 12 days), neglecting the time necessary to produce inoculum in chemostat-mode.