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Supercritical CO2 extract from microalga Tetradesmus obliquus: the effect of high-pressure pre-treatment

2022-06Journal article Open access
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dc.contributor.authorVladic, Jelena
dc.contributor.authorJerkovic, Igor
dc.contributor.authorRadman, Sanja
dc.contributor.authorJazic, Jelena Molnar
dc.contributor.authorFerreira, Alice
dc.contributor.authorMaletic, Snezana
dc.contributor.authorGouveia, Luisa
dc.date.accessioned2022-07-28T15:47:38Z
dc.date.available2022-07-28T15:47:38Z
dc.date.issued2022-06
dc.description.abstractABSTRACT: High-pressure pre-treatment followed by supercritical carbon dioxide (ScCO2) extraction (300 bar, 40 degrees C) was applied for the attainment of the lipophilic fraction of microalga Tetradesmus obliquus. The chemical profile of supercritical extracts of T. obliquus was analyzed by ultra-highperformance liquid chromatography-high-resolution mass spectrometry with electrospray ionization (UHPLC-ESI-HRMS). Moreover, the impact of ScCO(2 )on the microbiological and metal profile of the biomass was monitored. The application of the pre-treatment increased the extraction yield approximately three-fold compared to the control. In the obtained extracts (control and pre-treated extracts), the identified components belonged to triacylglyceroles, fatty acid derivatives, diacylglycerophosphocholines and diacylglycerophosphoserines, pigments, terpenes, and steroids. Triacylglycerols (65%) were the most dominant group of compounds in the control extract. The pre-treatment decreased the percentage of triacylglycerols to 2%, while the abundance of fatty acid derivatives was significantly increased (82%). In addition, the pre-treatment led to an increase in the percentages of carotenoids, terpenoids, and steroids. Furthermore, it was determined that ScCO2 extraction reduced the number of microorganisms in the biomass. Considering its microbiological and metal profiles, the biomass after ScCO2 can potentially be used as a safe and important source of organic compounds.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationVladic, Jelena... [et.al.] - Supercritical CO2 extract from microalga Tetradesmus obliquus: the effect of high-pressure pre-treatment. In: Molecules, vol. 27 (12), article nº 3883pt_PT
dc.identifier.doi10.3390/molecules27123883pt_PT
dc.identifier.eissn1420-3049
dc.identifier.urihttp://hdl.handle.net/10400.9/3893
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.relationSerbia 142-451-2576/2019-02pt_PT
dc.relationBilateral project Portugal-Serbia 5554/2020 (FCT)pt_PT
dc.relation337-00-00227/2019-09/72 (Serbia)pt_PT
dc.relationALGAVALOR-Lisboa-01-0247-FEDER-035234pt_PT
dc.relationBiomass and Bioenergy Research Infrastructure
dc.relationDevelopment of agricultural bioproducts biofertilizers, biostimulants and biopesticides from piggery wastewater treatment-based microalgae
dc.relation.publisherversionhttps://doi.org/10.3390/molecules27123883pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectMicroalgaept_PT
dc.subjectTetradesmus obliquuspt_PT
dc.subjectSupercritical carbon dioxidept_PT
dc.subjectHigh pressurept_PT
dc.subjectGreen chemistrypt_PT
dc.titleSupercritical CO2 extract from microalga Tetradesmus obliquus: the effect of high-pressure pre-treatmentpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleBiomass and Bioenergy Research Infrastructure
oaire.awardTitleDevelopment of agricultural bioproducts biofertilizers, biostimulants and biopesticides from piggery wastewater treatment-based microalgae
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/9444 - RNIIIE/PINFRA%2F22059%2F2016/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F144122%2F2019/PT
oaire.citation.titleMoleculespt_PT
oaire.citation.volume27pt_PT
oaire.fundingStream9444 - RNIIIE
person.familyNameVladic
person.familyNameJerkovic
person.familyNameFerreira
person.familyNameMaletic
person.familyNameGouveia
person.givenNameJelena
person.givenNameIgor
person.givenNameAlice
person.givenNameSnezana
person.givenNameLuisa
person.identifierH-4046-2011
person.identifier.ciencia-id5E11-D9E4-6586
person.identifier.ciencia-idD115-8FF3-9097
person.identifier.ciencia-id581B-924A-84DD
person.identifier.orcid0000-0002-3891-7266
person.identifier.orcid0000-0002-0727-6662
person.identifier.orcid0000-0002-2397-3943
person.identifier.orcid0000-0002-5026-3365
person.identifier.orcid0000-0003-0196-6360
person.identifier.ridD-6439-2017
person.identifier.ridH-2107-2016
person.identifier.scopus-author-id57194950912
person.identifier.scopus-author-id7004135834
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
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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