Microalgae species

Pretreatment

Biomass concentration

Initial reducing sugar (g/L)

Fermentation yield (g/greducing sugar)

Butanol production (g/L)

References

Ulva lactuca

SO₄ followed by enzymatic saccharification

15%

15.7

0.35 ABE g/g

3.0

van der Wal et al. [7]

Ulva lactuca

SO₄ followed by enzymatic saccharification

15%

16.2

0.08 ABE g/g

0.8

van der Wal et al. [7]

Ulva lactuca

SO₄ followed (1%)

15.2

0.29 g/g sugar

4.0

Potts et al. [27]

Arthrospira platensis

H₂SO₄ (0.1 M)

20 - 30 g/L

7.8

0.29 g/g

9.1

Efremenko et al. [28]

Dunaliella tertiolecta

H₂SO₄ (0.1 M)

20 - 30 g/L

12.7

0.027 g/g

1.35

Ellis et al. [29]

Wastewater algae

SO₄ followed by enzymatic saccharification

10%

31.3

0.249 g/g

7.8

Ellis et al. [29]

Nannochloropsis sp.

H₂SO₄ (0.1 M)

20 - 30 g/L

15.4

0.21 g/g

13.2

Efremenko et al. [28]

Microalgae residue

H₂SO₄ (2%) followed by NaOH (2%)

60 g/L

89.1

0.09 g/g carbohydrate

3.9

Cheng et al. [30]

C. vulgaris JSC-6

NaOH (1%) followed by H₂SO₄ (3%)

120 g/L

55.6

0.24 g/g sugar

13.1

Wang et al. [31]

Chlorella sp.

NaOH 2% followed by enzymatic saccharification

10 g/L

2.44

0.11 g/g sugar

0.03

This study

T. suecica

KaOH 2% followed by enzymatic saccharification

10 g/L

1.52

0.08 g/g sugar

0.07

This study