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Table 3 Comparison of the ethanol content of Chlamydomonas sp. KNM0029C and those of other strains with different pretreatment protocols

From: Co-production of biodiesel and bioethanol using psychrophilic microalga Chlamydomonas sp. KNM0029C isolated from Arctic sea ice

Algal feedstock

Pretreatment

Fermenting organism

Content (%)

(g EtOH/g dry mass)

References

Gracilaria salicornia (Macro-)

H2SO4 at 120 °C, cellulase

Escherichia coli KO11

7.9

[45]

Spirogyra sp. (filamentous)

Cellulose and amylase

Saccharomyces cerevisiae

8

[46]

Chlamydomonas reinhardtii

Amylase and glucoamylase

S. cerevisiae S288C

23.5

[21]

Chlorella vulgaris

H2SO4 at 110 °C, cellulose and β-glucosidase

E. coli SJL2526

40

[47]

C. reinhardtii

H2SO4 at 110 °C

S. cerevisiae S288C

29.1

[48]

Chlorella minutissima

H2SO4 at 100 °C

S. cerevisiae

18.5

[49]

Chlorella

H2SO4 at 120 °C, α-amylase

S. cerevisiae

28.1

[50]

Residual

Dunaliella tertiolecta

Amyloglucosidase

S. cerevisiae

14

[40]

Residual

Chlorella sp. KR-1

HCl at 121 °C

S. cerevisiae

16

[44]

Residual

Chlamydomonas sp. KNM0029C

Sonication and amylase

S. cerevisiae

21.6

This study

Residual

Chlamydomonas sp. KNM0029C

Sonication and HCl at 121 °C

S. cerevisiae

17.6

This study

Residual

Chlamydomonas sp. KNM0029C

Sonication and amylase, HCl at 121 °C

S. cerevisiae

17.3

This study