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Green approach for the valorization of microalgae Tetradesmus obliquus

2021-12Journal article Open access
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dc.contributor.authorGouveia, Luisa
dc.contributor.authorJazic, Jelena Molnar
dc.contributor.authorFerreira, Alice
dc.contributor.authorMaletic, Snezana
dc.contributor.authorCvetkovic, Dragoljub
dc.contributor.authorVidovic, Senka
dc.contributor.authorVladic, Jelena
dc.date.accessioned2021-12-29T13:54:02Z
dc.date.available2021-12-29T13:54:02Z
dc.date.issued2021-12
dc.description.abstractABSTRACT: The main goal of this study was to develop an efficient, green approach for the valorization of Tetradesmus obliquus biomass, with zero waste. This microalga was selected because it is widespread, resistant, easy for cultivation, and fast-growing. In the first step, supercritical carbon dioxide (ScCO2) extraction followed by rapid gas decompression was used for the extraction of biomass. The following step was to apply ultrasound-assisted (UA), microwave-assisted (MA), and subcritical water (SW) extraction on the ScCO2-treated biomass to determine the most efficient processing technology. SW demonstrated to be a superior technique over MW and UA with regard to extraction yield and antioxidant content. Moreover, the chemical and microbiological profiles of SW extracts were determined to evaluate their potential and safety. In addition, to create a procedure with zero waste, the solid waste after SW extraction (residue) was analyzed. The organic profile of extracts and residues contained compounds that belong to groups of aliphatic saturated hydrocarbons, aliphatic unsaturated hydrocarbons, alkylated hydrocarbons, ketones, phenols, and esters. Furthermore, these compounds can be applied in different industries including the pharmaceutical and cosmetic industries. Additionally, the content of metals in residues indicated that this material can be used as animal feed and in agriculture. Finally, a complete reduction of microorganisms present in the initial biomass was obtained for the extracts and residues, indicating their safety.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationGouveia, Luisa... [et.al.] - Green approach for the valorization of microalgae Tetradesmus obliquus. In: Sustainable Chemistry and Pharmacy, 2021, Vol. 24, article nº 100556pt_PT
dc.identifier.doi10.1016/j.scp.2021.100556pt_PT
dc.identifier.eissn2352-5541
dc.identifier.urihttp://hdl.handle.net/10400.9/3646
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationALGAVALOR -Lisboa-01-0247-FEDER-035234pt_PT
dc.relation(BBRI)-LISBOA-01-0145-FEDER-022059pt_PT
dc.relationDevelopment of agricultural bioproducts biofertilizers, biostimulants and biopesticides from piggery wastewater treatment-based microalgae
dc.relation.publisherversionhttps://doi.org/10.1016/j.scp.2021.100556pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectMicroalgaept_PT
dc.subjectExtractionpt_PT
dc.subjectBiomass Pre-treatmentpt_PT
dc.subjectWaste valorizationpt_PT
dc.subjectZero wastept_PT
dc.titleGreen approach for the valorization of microalgae Tetradesmus obliquuspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleDevelopment of agricultural bioproducts biofertilizers, biostimulants and biopesticides from piggery wastewater treatment-based microalgae
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F144122%2F2019/PT
oaire.citation.titleSustainable Chemistry and Pharmacypt_PT
oaire.citation.volume24pt_PT
person.familyNameGouveia
person.familyNameFerreira
person.familyNameMaletic
person.familyNameVladic
person.givenNameLuisa
person.givenNameAlice
person.givenNameSnezana
person.givenNameJelena
person.identifierH-4046-2011
person.identifier.ciencia-id581B-924A-84DD
person.identifier.ciencia-idD115-8FF3-9097
person.identifier.ciencia-id5E11-D9E4-6586
person.identifier.orcid0000-0003-0196-6360
person.identifier.orcid0000-0002-2397-3943
person.identifier.orcid0000-0002-5026-3365
person.identifier.orcid0000-0002-3891-7266
person.identifier.ridH-2107-2016
person.identifier.scopus-author-id7004135834
person.identifier.scopus-author-id57194950912
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication63dcbe08-14df-4886-98b7-2945cbe0e062
relation.isAuthorOfPublicationd0b70ea9-bb53-452c-ab86-b4bf8aee0249
relation.isAuthorOfPublication7f6e65fc-f794-41e1-a7aa-f52370113203
relation.isAuthorOfPublicationb3da1cb4-4933-4d6e-9c11-69e69c370b05
relation.isAuthorOfPublication.latestForDiscoveryd0b70ea9-bb53-452c-ab86-b4bf8aee0249
relation.isProjectOfPublication57a728de-12ae-4267-819b-6fb5398ad1ea
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