Spirulina sp. LEB 18 cultivation in seawater and reduced nutrients: Bioprocess strategy for increasing carbohydrates in biomass.

Autor: Bezerra PQM; Laboratory of Biochemical Engineering, College of Chemistry and Food Engineering, Federal University of Rio Grande, 96203-900 Rio Grande-RS, Brazil., Moraes L; Laboratory of Biochemical Engineering, College of Chemistry and Food Engineering, Federal University of Rio Grande, 96203-900 Rio Grande-RS, Brazil., Cardoso LG; Department of Bromatological Analysis, Faculty of Pharmacy, Federal University of Bahia, 40170-115 Salvador-BA, Brazil., Druzian JI; Department of Bromatological Analysis, Faculty of Pharmacy, Federal University of Bahia, 40170-115 Salvador-BA, Brazil., Morais MG; Laboratory of Microbiology and Biochemistry, College of Chemistry and Food Engineering, Federal University of Rio Grande, 96203-900 Rio Grande-RS, Brazil., Nunes IL; Department of Food Science and Technology, Center for Agrarian Sciences, Federal University of Santa Catarina, 88034-000 Florianópolis-SC, Brazil., Costa JAV; Laboratory of Biochemical Engineering, College of Chemistry and Food Engineering, Federal University of Rio Grande, 96203-900 Rio Grande-RS, Brazil. Electronic address: dqmjorge@furg.br.
Jazyk: angličtina
Zdroj: Bioresource technology [Bioresour Technol] 2020 Nov; Vol. 316, pp. 123883. Date of Electronic Publication: 2020 Jul 21.
DOI: 10.1016/j.biortech.2020.123883
Abstrakt: This study aimed to evaluate the growth and production of biomolecules by Spirulina sp. LEB 18 cultivated in seawater. The seawater was used without nutrient addition (SW0) and supplemented with 100% (SW100), 50% (SW50), and 25% (SW25) nitrogen, phosphorus, iron, and EDTA concentrations that make up the Zarrouk culture medium. When grown in SW0, Spirulina sp. LEB 18 showed maximum biomass concentration (2.17 g L -1 ) on the 11th d of cultivation and an increase in the carbohydrate content and productivity by 203% and 52%, respectively, when compared to the control culture. This cultivation strategy demonstrated the feasibility of using seawater as an alternative to freshwater in cultures as well as reduced nutritional requirements for biomass and carbohydrate production.
Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2020 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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