Chlorella vulgaris as a Lipid Source: Cultivation on Air and Seawater-Simulating Medium in a Helicoidal Photobioreactor.
Identifieur interne : 000222 ( Main/Exploration ); précédent : 000221; suivant : 000223Chlorella vulgaris as a Lipid Source: Cultivation on Air and Seawater-Simulating Medium in a Helicoidal Photobioreactor.
Auteurs : Davide Frumento [Italie] ; Bahar Aliakbarian [Italie] ; Alessandro Alberto Casazza [Italie] ; Saleh Al Arni [Arabie saoudite] ; Milena Fernandes Da Silva [Brésil] ; Attilio Converti [Italie]Source :
- Biotechnology progress ; 2015.
Abstract
The freshwater microalga Chlorella vulgaris was cultured batchwise on the seawater-simulating Schlösser medium either in a 1.1-L-working volume helicoidal photobioreactor (HeP) or Erlenmeyer flask (EF) as control and continuously supplying air as CO2 source. In these systems, maximum biomass concentration reached 1.65 ± 0.17 g L(-1) and 1.25 ± 0.06 g L(-1) , and maximum cell productivity 197.6 ± 20.4 mg L(-1) d(-1) and 160.8 ± 12.2 mg L(-1) d(-1) , respectively. Compared to the Bold's Basal medium commonly employed to cultivate this microorganism on a bench-scale, the Schlösser medium ensured significant increases in all the growth parameters, namely maximum cell concentration (268% in EF and 126% in HeP), maximum biomass productivity (554% in EF and 72% in HeP), average specific growth rate (67% in EF and 42% in HeP) and maximum specific growth rate (233% in EF and 22% in HeP). The lipid fraction of biomass collected at the end of runs was analyzed in terms of both lipid content and fatty acid profile. It was found that the seawater-simulating medium, despite of a 56-63% reduction of the overall biomass lipid content compared to the Bold's Basal one, led in HeP to significant increases in both the glycerides-to-total lipid ratio and polyunsaturated fatty acid content compared to the other conditions taken as an average. These results as a whole suggest that the helicoidal photobioreactor configuration could be a successful alternative to the present means to cultivate C. vulgaris as a lipid source. This article is protected by copyright. All rights reserved.
DOI: 10.1002/btpr.2218
PubMed: 26697953
Affiliations:
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Box: 800, Riyadh, 11421, Saudi Arabia.</nlm:affiliation><country xml:lang="fr">Arabie saoudite</country><wicri:regionArea>Department of Chemical Engineering, King Saud University, P.O. Box: 800, Riyadh, 11421</wicri:regionArea><wicri:noRegion>11421</wicri:noRegion></affiliation></author><author><name sortKey="Da Silva, Milena Fernandes" sort="Da Silva, Milena Fernandes" uniqKey="Da Silva M" first="Milena Fernandes" last="Da Silva">Milena Fernandes Da Silva</name><affiliation wicri:level="2"><nlm:affiliation>Federal University of Pernambuco, Biological Science Center, Av. Prof. Moraes Rego 1235, Cidade Universitária, 50670-901, Recife, PE, Brazil.</nlm:affiliation><country xml:lang="fr">Brésil</country><wicri:regionArea>Federal University of Pernambuco, Biological Science Center, Av. 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In these systems, maximum biomass concentration reached 1.65 ± 0.17 g L(-1) and 1.25 ± 0.06 g L(-1) , and maximum cell productivity 197.6 ± 20.4 mg L(-1) d(-1) and 160.8 ± 12.2 mg L(-1) d(-1) , respectively. Compared to the Bold's Basal medium commonly employed to cultivate this microorganism on a bench-scale, the Schlösser medium ensured significant increases in all the growth parameters, namely maximum cell concentration (268% in EF and 126% in HeP), maximum biomass productivity (554% in EF and 72% in HeP), average specific growth rate (67% in EF and 42% in HeP) and maximum specific growth rate (233% in EF and 22% in HeP). The lipid fraction of biomass collected at the end of runs was analyzed in terms of both lipid content and fatty acid profile. It was found that the seawater-simulating medium, despite of a 56-63% reduction of the overall biomass lipid content compared to the Bold's Basal one, led in HeP to significant increases in both the glycerides-to-total lipid ratio and polyunsaturated fatty acid content compared to the other conditions taken as an average. These results as a whole suggest that the helicoidal photobioreactor configuration could be a successful alternative to the present means to cultivate C. vulgaris as a lipid source. This article is protected by copyright. All rights reserved.</div></front></TEI><affiliations><list><country><li>Arabie saoudite</li><li>Brésil</li><li>Italie</li></country><region><li>Pernambuco</li></region></list><tree><country name="Italie"><noRegion><name sortKey="Frumento, Davide" sort="Frumento, Davide" uniqKey="Frumento D" first="Davide" last="Frumento">Davide Frumento</name></noRegion><name sortKey="Aliakbarian, Bahar" sort="Aliakbarian, Bahar" uniqKey="Aliakbarian B" first="Bahar" last="Aliakbarian">Bahar Aliakbarian</name><name sortKey="Casazza, Alessandro Alberto" sort="Casazza, Alessandro Alberto" uniqKey="Casazza A" first="Alessandro Alberto" last="Casazza">Alessandro Alberto Casazza</name><name sortKey="Converti, Attilio" sort="Converti, Attilio" uniqKey="Converti A" first="Attilio" last="Converti">Attilio Converti</name></country><country name="Arabie saoudite"><noRegion><name sortKey="Al Arni, Saleh" sort="Al Arni, Saleh" uniqKey="Al Arni S" first="Saleh" last="Al Arni">Saleh Al Arni</name></noRegion></country><country name="Brésil"><region name="Pernambuco"><name sortKey="Da Silva, Milena Fernandes" sort="Da Silva, Milena Fernandes" uniqKey="Da Silva M" first="Milena Fernandes" last="Da Silva">Milena Fernandes Da Silva</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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