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Table 4 Calculated EPA and DHA production rates (μg L -1 day -1 ) during exponential growth for five species of microalgae based on specific growth rates and cellular PUFA content values from Table 2

From: On the potential application of polar and temperate marine microalgae for EPA and DHA production

 

Irradiance

EPA (μg L -1 day -1 )

DHA (μg L -1 day -1 )

 

(μmol m -2s -1)

LT

HT

LT

HT

Chaetoceros brevis

10

125 ± 14

138 ± 31

3 ± 0

3 ± 0

 

25

193 ± 68

160 ± 84

4 ± 1

3 ± 2

 

75

174 ± 14

176 ± 0.7

3 ± 0

4 ± 0

 

150

175 ± 14

223 ± 20

4 ± 1

4 ± 1

Thalassiosira weissflogii

10

76 ± 17

60 ± 6

12 ± 3

10 ± 1

 

75

119 ± 36

nd

22 ± 7

nd

 

150

110 ± 27

nd

21 ± 7

nd

Pyramimonas sp.

75

0

nd

5 ± 1

nd

Emiliania huxleyi

75

5 ± 1

nd

164 ± 41

nd

Fibrocapsa japonica

75

150 ± 30

nd

0

nd

  1. Standard culture conditions are indicated in bold. LT: culture temperature 3°C (polar species: C. brevis, Pyramimonas sp.) or 16°C (temperate species: T. weissflogii, E. hux and F. japonica). HT: culture temperature 7°C (polar species) or 20°C (temperate species). Cell densities at harvest: C. brevis: 9.9 × 105 cells mL-1, T. weissflogii: 5.2 × 104 cells mL-1, Pyramimonas sp.: 4.5 × 104 cells mL-1, E. hux 5.0 × 105 cells mL-1, and F. japonica: 2.6 × 104 cells mL-1. Values represent averages ± standard deviation of two replicate cultures. nd = no data available.