AI Article Synopsis
- The study examines how adding CO affects the growth and biochemical traits of the microalga Tetradesmus obliquus in a hybrid algal production system (HAPS) that combines tubular photobioreactors and thin-layer cascade systems.
- CO addition was found to enhance productivity and improve the biomass's protein, lipid, pigment, and unsaturated fatty acid content.
- The HAPS setup demonstrates efficient CO fixation, leading to higher productivity and better-quality biomass in microalgae cultures when used in open systems.
Article Abstract
In this study, the effects of CO addition on the growth performance and biochemical composition of the green microalga Tetradesmus obliquus cultured in a hybrid algal production system (HAPS) were investigated. The HAPS combines the characteristics of tubular photobioreactors (towards a better carbon dioxide dissolution coefficient) with thin-layer cascade system (with a higher surface-to-volume ratio). Experimental batches were conducted with and without CO addition, and evaluated in terms of productivity and biomass characteristics (elemental composition, protein and lipid contents, pigments and fatty acids profiles). CO enrichment positively influenced productivity, and proteins, lipids, pigments and unsaturated fatty acids contents in biomass. The HAPS herein presented contributes to the optimization of microalgae cultures in open systems, since it allows, with a simple adaptation-a transit of the cultivation through a tubular portion where injection and dissolution of CO is efficient-to obtain in TLC systems, greater productivity and better-quality biomass.
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| http://dx.doi.org/10.1007/s00449-024-02969-7 | DOI Listing |
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