Cited by 81Algal biology and biofuel productionAquatic Ecosystems and Phytoplankton DynamicsAquaculture Nutrition and Growth

Production of Chlorella vulgaris as a source of essential fatty acids in a tubular photobioreactor continuously fed with air enriched with CO2 at different concentrations

Ortiz Montoya, Erika Y., Casazza, Alessandro A., Aliakbarian, Bahar, Perego, Patrizia, Converti, Attilio, de Carvalho, João C. Monteiro·2014·Biotechnology Progress

Abstract

To reduce CO2 emissions and simultaneously produce biomass rich in essential fatty acids, Chlorella vulgaris CCAP 211 was continuously grown in a tubular photobioreactor using air alone or air enriched with CO2 as the sole carbon source. While on one hand, nitrogen-limited conditions strongly affected biomass growth, conversely, they almost doubled its lipid fraction. Under these conditions using air enriched with 0, 2, 4, 8, and 16% (v/v) CO2 , the maximum biomass concentration was 1.4, 5.8, 6.6, 6.8, and 6.4 gDB L(-1) on a dry basis, the CO2 consumption rate 62, 380, 391, 433, and 430 mgCO2 L(-1) day(-1) , and the lipid productivity 3.7, 23.7, 24.8, 29.5, and 24.4 mg L(-1) day(-1) , respectively. C. vulgaris was able to grow effectively using CO2 -enriched air, but its chlorophyll a (3.0-3.5 g 100gDB (-1) ), chlorophyll b (2.6-3.0 g 100gDB (-1) ), and lipid contents (10.7-12.0 g 100gDB (-1) ) were not significantly influenced by the presence of CO2 in the air. Most of the fatty acids in C. vulgaris biomass were of the saturated series, mainly myristic, palmitic, and stearic acids, but a portion of no less than 45% consisted of unsaturated fatty acids, and about 80% of these were high added-value essential fatty acids belonging to the ω3 and ω6 series. These results highlight that C. vulgaris biomass could be of great importance for human health when used as food additive or for functional food production.

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Crossref · 10.1002/btpr.1885

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Authors
Ortiz Montoya, E. Y., Casazza, A. A., Aliakbarian, B., Perego, P., Converti, A., & de Carvalho, J. C. M.
Affiliations
  • Dept. of Civil, Chemical and Environmental Engineering (DICCA), Chemical Engineering Pole University of Genoa Via Opera Pia 15 Genoa 16145 Italy
  • University of Genoa (IT)
  • Dept. of Biochemical and Pharmaceutical Technology University of São Paulo Av. Prof. Lineu Prestes 580, Bl. 16 São Paulo‐SP 05508‐900 Brazil
Venue
Biotechnology Progress
Publisher
Wiley
Published
2014-03-14
Volume
30
Issue
4
Pages
916-922
ISSN
  • 1520-6033 (ISSN-L)
  • 8756-7938
OpenAlex
W2035251950
Cited by
81
References
43
Citations by year
2026: 5 · 2025: 6 · 2024: 7 · 2023: 8 · 2022: 9 · 2021: 11 · 2020: 12 · 2019: 5 · 2018: 6 · 2017: 3 · 2016: 4 · 2015: 4 · 2014: 1
FWCI
1.32
Type
journal article
Language
en
Open access
closed
Locations
  • Biotechnology Progress (publishedVersion)
  • PubMed (publishedVersion)
  • CINECA IRIS Institutial Research Information System (University of Genoa) (submittedVersion)
Funders
Ministry of Education, University and Research - Italy (FIRB RBIP06993E)
Topics
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Algal biology and biofuel production
  • Physical Sciences › Environmental Science › Environmental Chemistry › Aquatic Ecosystems and Phytoplankton Dynamics
  • Life Sciences › Agricultural and Biological Sciences › Aquatic Science › Aquaculture Nutrition and Growth
Keywords
Chlorella vulgaris, essential fatty acids, tubular photobioreactor, nitrogen limitation, microalgal lipid production, fatty acid composition, omega-3 fatty acids, omega-6 fatty acids, saturated fatty acids, CO2 consumption, biomass growth, functional foods
MeSH terms
Air, Carbon Dioxide, Fatty Acids, Essential, Humans, Biomass, Chlorella vulgaris, Biofuels, Microalgae, Photobioreactors

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