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Table 1 TAG contents, productivities and yields on light for the outdoor runs under nitrogen-starvation

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

High light conditions (36 ± 2 mol m−2 day−1)

C x (0) (g L−1)

I av (mol m−2 day−1)

f TAG, batch (% w/w)

P TAG, batch (g m−2 day−1)

P TAG, max (g m−2 day−1)

Y TAG, ph, max (g mol−1)

Vertical reactor

 1

35 ± 12

34

1.9

3.5 (day3)

0.16 (day3)

 1.5

35 ± 10

32

3.2

8.3 (day1)

0.29 (day1)

 2.5

39 ± 14

16

2.7

2.9 (day10)

0.08 (day10)

Horizontal reactor

 1

35 ± 12

33

1.0

1.7 (day3)

0.08 (day3)

 1.5

35 ± 10

32

1.6

5.4 (day1)

0.19 (day1)

 2.5

39 ± 14

25

2.6

3.1 (day10)

0.08 (day4)

Low light conditions (14 ± 3 mol m−2 day−1)

C x (0) (g L−1)

I av (mol m−2 day−1)

f TAG, batch (% w/w)

P TAG, batch (g m−2 day−1)

P TAG, max (g m−2 day−1)

Y TAG, ph, max (g mol−1)

Vertical reactor

1

17 ± 7

29

1.4

2.6 (day2)

0.13 (day1)

1.5

17 ± 4

26

1.9

2.6 (day2)

0.14 (day2)

2.5

12 ± 5

21

1.6

2.4 (day2)

0.12 (day2)

Horizontal reactor

 1

17 ± 7

28

0.6

1.5 (day2)

0.07 (day2)

 1.5

17 ± 4

31

1.4

2.6 (day1)

0.13 (day1)

 2.5

12 ± 5

22

1.0

2.4 (day1)

0.11 (day1)

  1. Batch TAG content (f TAG, batch ), batch (P TAG, batch ) and maximum (P TAG, max) TAG productivity, and maximum TAG yield on light (Y TAG, ph, max ) obtained for the different initial biomass concentrations (C x (0)) and average light intensity (I av ). In brackets, day at which maximum TAG productivity and TAG yield on light were obtained.