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Supercritical CO2 extraction of Aurantiochytrium sp. biomass for the enhanced recovery of omega-3 fatty acids and phenolic compounds

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dc.contributor.authorMelo, M.M.R. de
dc.contributor.authorSapatinha, M.
dc.contributor.authorPinheiro, J.
dc.contributor.authorLemos, M.F.L.
dc.contributor.authorBandarra, N.M.
dc.contributor.authorBatista, I.
dc.contributor.authorPaulo, M.C.
dc.contributor.authorCoutinho, J.
dc.contributor.authorSaraiva, J.A.
dc.contributor.authorPortugal, I
dc.contributor.authorSilva, C.M.
dc.date.accessioned2020-08-28T16:24:07Z
dc.date.available2020-08-28T16:24:07Z
dc.date.issued2020
dc.descriptionAcknowledgements : This work was funded by the project “Valorização dos subprodutos do processo biotecnológico de produção de esqualeno e DHA pela microalga Aurantiochytrium sp.” (AlgaValue) (ref. 17680), and within the scope of the project CICECO Aveiro Institute of Materials, UIDB/50011/2020 & UIDP/50011/2020, and strategic program of MARE (MARE-UID/MAR/04292/2013), financed by national funds through the FCT/MCTES. Authors also thank the funding from Project AgroForWealth (CENTRO-01-0145-FEDER- 000001), funded by Centro2020, through FEDER and PT2020 and University of Aveiro and FCT/MCT for the financial support for the QOPNA research Unit (FCT UID/QUI/00062/2019) through national founds and, where applicable, co-financed by the FEDER, within the PT2020 Partnership Agreement. The project was also partially funded by the Integrated Programme of SR&TD “SmartBioR” (reference Centro-01-0145-FEDER-000018) cofunded by Centro 2020 program, Portugal2020, European Union, through the European Regional Development Fund.
dc.description.abstractThe microalgae Aurantiochytrium sp. is a strong alternative source of ω-3 fatty acids, including ocosahexaenoic acid (DHA). This work encompasses the optimization of SFE conditions to maximize the total extraction yield (ηTotal), DHA content (CDHA), total phenolics content (TPC), and antioxidant capacity (AOC) of the extracts produced from Aurantiochytrium sp. biomass. A full factorial experimental plan was performed, comprising three factors (pressure, temperature, and flow rate) and two levels (200−300 bar, 40−80 °C, and 6–12 gmin−1, respectively). The maximum and minimum experimental results were ηTotal = 2.1 and 13.4 wt.%, CDHA= 27.3 and 39.3 wt.%, TPC =1.19 and 2.24 mgGAE g−extract 1 , and AOC = 0.3 and 1.4 mg g− TEAC extract 1. Under the studied experimental conditions, increasing pressure up to 300 bar is the optimum to rise both ηTotal and CDHA. Temperature increase from 40 to 80 °C leads to opposing effects: it favors the concentration of phenolics in the supercritical extracts at the expenses of decreasing DHA content and total yield. Surface models were adjusted to ηTotal, CDHA and TPC data, and the goodness of the fits ranged from coefficients of determination of 0.752-0.711 (TPC) to 0.997-0.994 (CDHA). Under optimized conditions, supercritical extracts exhibited a DHA content more than 3.5-fold richer than fish oil, and 7.9-fold richer than the best alternative microalgae species (Pavlova lutheri) found in the literature.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationMelo, M., Sapatinha, M., Pinheiro, J., Lemos, M., Bandarra, N., Batista, I., Paulo, M., Coutinho, J., Saraiva, J., Portugal, I. & Silva, C.M. (2020). Supercritical CO2 extraction of Aurantiochytrium sp. biomass for the enhanced recovery of omega-3 fatty acids and phenolic compounds. Journal of CO2 Utilization. 38. 24-31. DOI: 10.1016/j.jcou.2020.01.014.pt_PT
dc.identifier.doi10.1016/j.jcou.2020.01.014pt_PT
dc.identifier.issn2212-9820
dc.identifier.urihttp://hdl.handle.net/10400.8/5119
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationCICECO-Aveiro Institute of Materials
dc.relationCICECO-Aveiro Institute of Materials
dc.relationOrganic Chemistry, Natural Products and Food Stuffs
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectAurantiochytrium sp.pt_PT
dc.subjectDesign of experimentspt_PT
dc.subjectDocosahexaenoic acidpt_PT
dc.subjectMicroalgaept_PT
dc.subjectSupercritical fluid extractionpt_PT
dc.titleSupercritical CO2 extraction of Aurantiochytrium sp. biomass for the enhanced recovery of omega-3 fatty acids and phenolic compoundspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleCICECO-Aveiro Institute of Materials
oaire.awardTitleCICECO-Aveiro Institute of Materials
oaire.awardTitleOrganic Chemistry, Natural Products and Food Stuffs
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50011%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F50011%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FMAR%2F04292%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FQUI%2F00062%2F2019/PT
oaire.citation.endPage31pt_PT
oaire.citation.startPage24pt_PT
oaire.citation.titleJournal of Co2 Utilizationpt_PT
oaire.citation.volume38pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream5876
oaire.fundingStream6817 - DCRRNI ID
person.familyNamePinheiro
person.familyNameLemos
person.givenNameJoaquina
person.givenNameMarco
person.identifier556456
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person.identifier.ciencia-idB113-2D80-406B
person.identifier.orcid0000-0001-9319-2651
person.identifier.orcid0000-0001-9887-1864
person.identifier.ridF-7951-2011
person.identifier.scopus-author-id25228814000
person.identifier.scopus-author-id7006042884
project.funder.identifierhttp://doi.org/10.13039/501100001871
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project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsclosedAccesspt_PT
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