Innovative application of brackish groundwater without the addition of nutrients in the cultivation of Spirulina and Chlorella for carbohydrate and lipid production.

Autor: Bezerra PQM; Laboratory of Biochemical Engineering, College of Chemistry and Food Engineering, Federal University of Rio Grande, Rio Grande-RS 96203-900, Brazil., Moraes L; Laboratory of Biochemical Engineering, College of Chemistry and Food Engineering, Federal University of Rio Grande, Rio Grande-RS 96203-900, Brazil., Silva TNM; Laboratory of Biochemical Engineering, College of Chemistry and Food Engineering, Federal University of Rio Grande, Rio Grande-RS 96203-900, Brazil., Cardoso LG; Department of Bromatological Analysis, Faculty of Pharmacy, Federal University of Bahia, Salvador-BA 40170-115, Brazil., Druzian JI; Department of Bromatological Analysis, Faculty of Pharmacy, Federal University of Bahia, Salvador-BA 40170-115, Brazil., Morais MG; Laboratory of Microbiology and Biochemistry, College of Chemistry and Food Engineering, Federal University of Rio Grande, Rio Grande-RS 96203-900, Brazil., Nunes IL; Department of Food Science and Technology, Center for Agrarian Sciences, Federal University of Santa Catarina, Florianópolis-SC 88034-000, Brazil., Costa JAV; Laboratory of Biochemical Engineering, College of Chemistry and Food Engineering, Federal University of Rio Grande, Rio Grande-RS 96203-900, Brazil. Electronic address: jorgealbertovc@gmail.com.
Jazyk: angličtina
Zdroj: Bioresource technology [Bioresour Technol] 2022 Feb; Vol. 345, pp. 126543. Date of Electronic Publication: 2021 Dec 10.
DOI: 10.1016/j.biortech.2021.126543
Abstrakt: Brackish groundwater is promising for the cultivation of economically important microalgae; however, its effects have been evaluated only after nutrient supplementation. In this study, 100% brackish groundwater was evaluated as a culture medium for Spirulina sp. (BGWS) and Chlorella fusca (BGWC). In addition, the effects of supplementation with 25% of the nutrients from Zarrouk (BGWS25) and BG-11 (BGWC25) culture media were evaluated. BGWS and BGWC increased the concentration (68.1% w w -1 ) and productivity of carbohydrate (35.3 mg L -1 d -1 ) in Spirulina sp. and increased the concentration (56.4% w w -1 ) and productivity (13.5 mg L -1 d -1 ) of lipids in C. fusca biomass, when compared to that in the respective controls. The use of brackish groundwater as the sole culture medium is an innovative alternative for the economic production of biomass rich in carbohydrates and lipids. This has potential applications for biofuel production.
(Copyright © 2021 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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