Microalgal CO2 capture at extreme pH values

Jonna Piiparinen, Dorothee Barth, Niels Thomas Eriksen, Sebastian Teir, Kristian Spilling Spilling, Marilyn Wiebe

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

3 Citationer (Scopus)

Resumé

Although algae are often grown at pH values between 6 and 8, shifting to more alkali or acidic conditions may benefit CO 2 delivery to algal cultures. To assess the impact of culture pH on growth rate and uptake of CO 2, we grew three relatively fast growing acidophilic (Coccomyxa sp., Euglena mutabilis and Euglena gracilis) and three alkaliphilic (Thalassiosira pseudonana, Phaeodactylum tricornutum, Chlamydomonas sp.) algal species at pH values near neutral and near the extreme of their growth range. All six species showed similar growth and CO 2 uptake ability at extreme as at neutral pH values. Cultures of the alkaliphilic species captured a higher proportion of CO 2 from the gas stream than the acidophilic species; removing 50 to 65% of CO 2 from air compared to only 38% removed by acidophilic species (or 10–24% from CO 2 enriched air). Alkaliphilic species did not become carbon limited when fed CO 2 at the concentration provided by air (0.04% CO 2), but produced less biomass and captured less total CO 2 (0.06 to 0.08 g CO 2 per day) than the acidophilic species (0.6–0.8 g CO 2 day −1) which required CO 2 enriched air to avoid carbon limitation. Bicarbonate feeding reduced the loss of CO 2 to the environment, compared to feeding gaseous CO 2, but with a potential cost in reduced specific growth rate or biomass production.

OriginalsprogDansk
TidsskriftAlgal Research
Vol/bind32
Sider (fra-til)321-328
Antal sider8
ISSN2211-9264
DOI
StatusUdgivet - 2018

Citer dette

Piiparinen, J., Barth, D., Eriksen, N. T., Teir, S., Spilling, K. S., & Wiebe, M. (2018). Microalgal CO2 capture at extreme pH values. Algal Research, 32, 321-328. https://doi.org/10.1016/j.algal.2018.04.021
Piiparinen, Jonna ; Barth, Dorothee ; Eriksen, Niels Thomas ; Teir, Sebastian ; Spilling, Kristian Spilling ; Wiebe, Marilyn. / Microalgal CO2 capture at extreme pH values. I: Algal Research. 2018 ; Bind 32. s. 321-328.
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title = "Microalgal CO2 capture at extreme pH values",
abstract = "Although algae are often grown at pH values between 6 and 8, shifting to more alkali or acidic conditions may benefit CO 2 delivery to algal cultures. To assess the impact of culture pH on growth rate and uptake of CO 2, we grew three relatively fast growing acidophilic (Coccomyxa sp., Euglena mutabilis and Euglena gracilis) and three alkaliphilic (Thalassiosira pseudonana, Phaeodactylum tricornutum, Chlamydomonas sp.) algal species at pH values near neutral and near the extreme of their growth range. All six species showed similar growth and CO 2 uptake ability at extreme as at neutral pH values. Cultures of the alkaliphilic species captured a higher proportion of CO 2 from the gas stream than the acidophilic species; removing 50 to 65{\%} of CO 2 from air compared to only 38{\%} removed by acidophilic species (or 10–24{\%} from CO 2 enriched air). Alkaliphilic species did not become carbon limited when fed CO 2 at the concentration provided by air (0.04{\%} CO 2), but produced less biomass and captured less total CO 2 (0.06 to 0.08 g CO 2 per day) than the acidophilic species (0.6–0.8 g CO 2 day −1) which required CO 2 enriched air to avoid carbon limitation. Bicarbonate feeding reduced the loss of CO 2 to the environment, compared to feeding gaseous CO 2, but with a potential cost in reduced specific growth rate or biomass production.",
author = "Jonna Piiparinen and Dorothee Barth and Eriksen, {Niels Thomas} and Sebastian Teir and Spilling, {Kristian Spilling} and Marilyn Wiebe",
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Piiparinen, J, Barth, D, Eriksen, NT, Teir, S, Spilling, KS & Wiebe, M 2018, 'Microalgal CO2 capture at extreme pH values', Algal Research, bind 32, s. 321-328. https://doi.org/10.1016/j.algal.2018.04.021

Microalgal CO2 capture at extreme pH values. / Piiparinen, Jonna ; Barth, Dorothee; Eriksen, Niels Thomas; Teir, Sebastian ; Spilling, Kristian Spilling; Wiebe, Marilyn.

I: Algal Research, Bind 32, 2018, s. 321-328.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Microalgal CO2 capture at extreme pH values

AU - Piiparinen, Jonna

AU - Barth, Dorothee

AU - Eriksen, Niels Thomas

AU - Teir, Sebastian

AU - Spilling, Kristian Spilling

AU - Wiebe, Marilyn

PY - 2018

Y1 - 2018

N2 - Although algae are often grown at pH values between 6 and 8, shifting to more alkali or acidic conditions may benefit CO 2 delivery to algal cultures. To assess the impact of culture pH on growth rate and uptake of CO 2, we grew three relatively fast growing acidophilic (Coccomyxa sp., Euglena mutabilis and Euglena gracilis) and three alkaliphilic (Thalassiosira pseudonana, Phaeodactylum tricornutum, Chlamydomonas sp.) algal species at pH values near neutral and near the extreme of their growth range. All six species showed similar growth and CO 2 uptake ability at extreme as at neutral pH values. Cultures of the alkaliphilic species captured a higher proportion of CO 2 from the gas stream than the acidophilic species; removing 50 to 65% of CO 2 from air compared to only 38% removed by acidophilic species (or 10–24% from CO 2 enriched air). Alkaliphilic species did not become carbon limited when fed CO 2 at the concentration provided by air (0.04% CO 2), but produced less biomass and captured less total CO 2 (0.06 to 0.08 g CO 2 per day) than the acidophilic species (0.6–0.8 g CO 2 day −1) which required CO 2 enriched air to avoid carbon limitation. Bicarbonate feeding reduced the loss of CO 2 to the environment, compared to feeding gaseous CO 2, but with a potential cost in reduced specific growth rate or biomass production.

AB - Although algae are often grown at pH values between 6 and 8, shifting to more alkali or acidic conditions may benefit CO 2 delivery to algal cultures. To assess the impact of culture pH on growth rate and uptake of CO 2, we grew three relatively fast growing acidophilic (Coccomyxa sp., Euglena mutabilis and Euglena gracilis) and three alkaliphilic (Thalassiosira pseudonana, Phaeodactylum tricornutum, Chlamydomonas sp.) algal species at pH values near neutral and near the extreme of their growth range. All six species showed similar growth and CO 2 uptake ability at extreme as at neutral pH values. Cultures of the alkaliphilic species captured a higher proportion of CO 2 from the gas stream than the acidophilic species; removing 50 to 65% of CO 2 from air compared to only 38% removed by acidophilic species (or 10–24% from CO 2 enriched air). Alkaliphilic species did not become carbon limited when fed CO 2 at the concentration provided by air (0.04% CO 2), but produced less biomass and captured less total CO 2 (0.06 to 0.08 g CO 2 per day) than the acidophilic species (0.6–0.8 g CO 2 day −1) which required CO 2 enriched air to avoid carbon limitation. Bicarbonate feeding reduced the loss of CO 2 to the environment, compared to feeding gaseous CO 2, but with a potential cost in reduced specific growth rate or biomass production.

U2 - 10.1016/j.algal.2018.04.021

DO - 10.1016/j.algal.2018.04.021

M3 - Tidsskriftartikel

VL - 32

SP - 321

EP - 328

JO - Algal Research

JF - Algal Research

SN - 2211-9264

ER -