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Coupling Carbon Capture from a Power Plant with Semi-automated Open Raceway Ponds for Microalgae Cultivation

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Retracted: Potential carbon dioxide fixation by industrially important microalgae.

Eduardo Bittencourt Sydney¹, Wilerson Sturm, Julio Cesar de Carvalho

¹Bioprocess Engineering and Biotechnoloy Department, Federal University of Parana, Centro Politécnico, Usina Piloto B, CEP 81531-990 Curitiba, Paraná, Brazil.

Bioresource Technology

|March 31, 2010

Summary

This summary is machine-generated.

This study investigated carbon metabolism in four microalgae species, finding Botryococcus braunii had the highest carbon dioxide fixation rate. The fixed carbon primarily supports microalgal biomass production, rich in proteins and lipids.

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Published on: December 19, 2019

Area of Science:

Biotechnology
Environmental Science
Marine Biology

Background:

Microalgae are crucial for carbon fixation and biomass production.
Understanding carbon metabolism is key to optimizing microalgal cultivation.

Purpose of the Study:

To investigate carbon dioxide fixation and its utilization in four microalgae species.
To analyze growth parameters, biomass composition, and nutrient balance during cultivation.

Main Methods:

Cultivation of Dunaliella tertiolecta, Chlorella vulgaris, Spirulina platensis, and Botryococcus braunii.
Measurement of global carbon dioxide and oxygen rates using a laboratory-developed system.
Analysis of biomass composition, productivity, and nutrient consumption.

Main Results:

Botryococcus braunii exhibited the highest CO2 fixation rate (496.98 mg L-1 day-1), followed by S. platensis, D. tertiolecta, and C. vulgaris.
Fixed carbon dioxide was predominantly converted into microalgal biomass.
Biomass composition showed a high content of proteins and lipids, particularly in D. tertiolecta and B. braunii.

Conclusions:

Microalgae are efficient in fixing carbon dioxide, primarily for biomass generation.
Species-specific variations in carbon fixation rates and biomass composition exist.
Nutrient consumption patterns varied among the evaluated microalgae species.