CO2 Biofixation and Growth Kinetics of Chlorella vulgaris and Nannochloropsis gaditana

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Abstract

CO ₂ biofixation was investigated using tubular bioreactors (15 and 1.5 l) either in the presence of green algae Chlorella vulgaris or Nannochloropsis gaditana. The cultivation was carried out in the following conditions: temperature of 25 °C, inlet-CO ₂ of 4 and 8 vol%, and artificial light enhancing photosynthesis. Higher biofixation were observed in 8 vol% CO ₂ concentration for both microalgae cultures than in 4 vol%. Characteristic process parameters such as productivity, CO ₂ fixation, and kinetic rate coefficient were determined and discussed. Simplified and advanced methods for determination of CO ₂ fixation were compared. In a simplified method, it is assumed that 1 kg of produced biomass equals 1.88 kg recycled CO ₂. Advance method is based on empirical results of the present study (formula with carbon content in biomass). It was observed that application of the simplified method can generate large errors, especially if the biomass contains a relatively low amount of carbon. N. gaditana is the recommended species for CO ₂ removal due to a high biofixation rate—more than 1.7 g/l/day. On day 10 of cultivation, the cell concentration was more than 1.7 × 10 ⁷ cells/ml. In the case of C. vulgaris, the maximal biofixation rate and cell concentration did not exceed 1.4 g/l/day and 1.3 × 10 ⁷ cells/ml, respectively.

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The online version of this article (doi:10.1007/s12010-016-2062-3) contains supplementary material, which is available to authorized users.

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Author and article information

Contributors

Michał Adamczyk: + 4832 271-00-41 , madamczyk@ichpw.pl

Journal

Journal ID (nlm-ta): Appl Biochem Biotechnol

Journal ID (iso-abbrev): Appl. Biochem. Biotechnol

Title: Applied Biochemistry and Biotechnology

Publisher: Springer US (New York )

ISSN (Print): 0273-2289

ISSN (Electronic): 1559-0291

Publication date (Electronic): 6 April 2016

Publication date PMC-release: 6 April 2016

Publication date (Print): 2016

Volume: 179

Pages: 1248-1261

Affiliations

Institute for Chemical Processing of Coal, Zamkowa 1, 41-803 Zabrze, Poland

Article

Publisher ID: 2062

DOI: 10.1007/s12010-016-2062-3

PMC ID: 4978769

PubMed ID: 27052208

SO-VID: a6ca7328-c0c1-4d8b-9a98-f34142c20d64

License:

Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

History

Date received : 18 November 2015

Date accepted : 23 March 2016

Funding

Funded by: Ministry of Economy of the Republic of Poland.

Custom metadata

ScienceOpen disciplines: Biochemistry

Keywords: co2 biofixation,green algae,chlorella vulgaris,nannochloropsis gaditana,growth kinetics

Data availability:

ScienceOpen disciplines: Biochemistry

Keywords: co2 biofixation, green algae, chlorella vulgaris, nannochloropsis gaditana, growth kinetics