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Effect of the Carbon Concentration, Blend Concentration, and Renewal Rate in the Growth Kinetic of Chlorella sp.

The microalgae cultivation can be used as alternative sources of food, in agriculture, residual water treatment, and biofuels production. Semicontinuous cultivation is little studied but is more cost-effective than the discontinuous (batch) cultivation. In the semicontinuous cultivation, the microal...

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Autores principales: Henrard, Adriano Arruda, da Rosa, Gabriel Martins, Moraes, Luiza, de Morais, Michele Greque, Costa, Jorge Alberto Vieira
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi Publishing Corporation 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4279364/
https://www.ncbi.nlm.nih.gov/pubmed/25580453
http://dx.doi.org/10.1155/2014/205184
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author Henrard, Adriano Arruda
da Rosa, Gabriel Martins
Moraes, Luiza
de Morais, Michele Greque
Costa, Jorge Alberto Vieira
author_facet Henrard, Adriano Arruda
da Rosa, Gabriel Martins
Moraes, Luiza
de Morais, Michele Greque
Costa, Jorge Alberto Vieira
author_sort Henrard, Adriano Arruda
collection PubMed
description The microalgae cultivation can be used as alternative sources of food, in agriculture, residual water treatment, and biofuels production. Semicontinuous cultivation is little studied but is more cost-effective than the discontinuous (batch) cultivation. In the semicontinuous cultivation, the microalga is maintained in better concentration of nutrients and the photoinhibition by excessive cell is reduced. Thus, biomass productivity and biocompounds of interest, such as lipid productivity, may be higher than in batch cultivation. The objective of this study was to examine the influence of blend concentration, medium renewal rate, and concentration of sodium bicarbonate on the growth of Chlorella sp. during semicontinuous cultivation. The cultivation was carried out in Raceway type bioreactors of 6 L, for 40 d at 30°C, 41.6 µmol m(−2) s(−1), and a 12 h light/dark photoperiod. Maximum specific growth rate (0.149 d(−1)) and generating biomass (2.89 g L(−1)) were obtained when the blend concentration was 0.80 g L(−1), the medium renewal rate was 40%, and NaHCO(3) was 1.60 g L(−1). The average productivity (0.091 g L(−1) d(−1)) was achieved with 0.8 g L(−1) of blend concentration and NaHCO(3) concentration of 1.6 g L(−1), independent of the medium renewal rate.
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spelling pubmed-42793642015-01-11 Effect of the Carbon Concentration, Blend Concentration, and Renewal Rate in the Growth Kinetic of Chlorella sp. Henrard, Adriano Arruda da Rosa, Gabriel Martins Moraes, Luiza de Morais, Michele Greque Costa, Jorge Alberto Vieira ScientificWorldJournal Research Article The microalgae cultivation can be used as alternative sources of food, in agriculture, residual water treatment, and biofuels production. Semicontinuous cultivation is little studied but is more cost-effective than the discontinuous (batch) cultivation. In the semicontinuous cultivation, the microalga is maintained in better concentration of nutrients and the photoinhibition by excessive cell is reduced. Thus, biomass productivity and biocompounds of interest, such as lipid productivity, may be higher than in batch cultivation. The objective of this study was to examine the influence of blend concentration, medium renewal rate, and concentration of sodium bicarbonate on the growth of Chlorella sp. during semicontinuous cultivation. The cultivation was carried out in Raceway type bioreactors of 6 L, for 40 d at 30°C, 41.6 µmol m(−2) s(−1), and a 12 h light/dark photoperiod. Maximum specific growth rate (0.149 d(−1)) and generating biomass (2.89 g L(−1)) were obtained when the blend concentration was 0.80 g L(−1), the medium renewal rate was 40%, and NaHCO(3) was 1.60 g L(−1). The average productivity (0.091 g L(−1) d(−1)) was achieved with 0.8 g L(−1) of blend concentration and NaHCO(3) concentration of 1.6 g L(−1), independent of the medium renewal rate. Hindawi Publishing Corporation 2014 2014-12-15 /pmc/articles/PMC4279364/ /pubmed/25580453 http://dx.doi.org/10.1155/2014/205184 Text en Copyright © 2014 Adriano Arruda Henrard et al. https://creativecommons.org/licenses/by/3.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Henrard, Adriano Arruda
da Rosa, Gabriel Martins
Moraes, Luiza
de Morais, Michele Greque
Costa, Jorge Alberto Vieira
Effect of the Carbon Concentration, Blend Concentration, and Renewal Rate in the Growth Kinetic of Chlorella sp.
title Effect of the Carbon Concentration, Blend Concentration, and Renewal Rate in the Growth Kinetic of Chlorella sp.
title_full Effect of the Carbon Concentration, Blend Concentration, and Renewal Rate in the Growth Kinetic of Chlorella sp.
title_fullStr Effect of the Carbon Concentration, Blend Concentration, and Renewal Rate in the Growth Kinetic of Chlorella sp.
title_full_unstemmed Effect of the Carbon Concentration, Blend Concentration, and Renewal Rate in the Growth Kinetic of Chlorella sp.
title_short Effect of the Carbon Concentration, Blend Concentration, and Renewal Rate in the Growth Kinetic of Chlorella sp.
title_sort effect of the carbon concentration, blend concentration, and renewal rate in the growth kinetic of chlorella sp.
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4279364/
https://www.ncbi.nlm.nih.gov/pubmed/25580453
http://dx.doi.org/10.1155/2014/205184
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