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

Detalhes bibliográficos
Autor(a) principal: Vladic, Jelena
Data de Publicação: 2022
Outros Autores: Jerkovic, Igor, Radman, Sanja, Jazic, Jelena Molnar, Ferreira, Alice, Maletic, Snezana, Gouveia, Luisa
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.9/3893
Resumo: ABSTRACT: 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.
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spelling Supercritical CO2 extract from microalga Tetradesmus obliquus: the effect of high-pressure pre-treatmentMicroalgaeTetradesmus obliquusSupercritical carbon dioxideHigh pressureGreen chemistryABSTRACT: 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.MDPIRepositório do LNEGVladic, JelenaJerkovic, IgorRadman, SanjaJazic, Jelena MolnarFerreira, AliceMaletic, SnezanaGouveia, Luisa2022-07-28T15:47:38Z2022-06-01T00:00:00Z2022-06-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.9/3893engVladic, Jelena... [et.al.] - Supercritical CO2 extract from microalga Tetradesmus obliquus: the effect of high-pressure pre-treatment. In: Molecules, vol. 27 (12), article nº 388310.3390/molecules271238831420-3049info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-09-06T12:29:45Zoai:repositorio.lneg.pt:10400.9/3893Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T15:37:09.009829Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Supercritical CO2 extract from microalga Tetradesmus obliquus: the effect of high-pressure pre-treatment
title Supercritical CO2 extract from microalga Tetradesmus obliquus: the effect of high-pressure pre-treatment
spellingShingle Supercritical CO2 extract from microalga Tetradesmus obliquus: the effect of high-pressure pre-treatment
Vladic, Jelena
Microalgae
Tetradesmus obliquus
Supercritical carbon dioxide
High pressure
Green chemistry
title_short Supercritical CO2 extract from microalga Tetradesmus obliquus: the effect of high-pressure pre-treatment
title_full Supercritical CO2 extract from microalga Tetradesmus obliquus: the effect of high-pressure pre-treatment
title_fullStr Supercritical CO2 extract from microalga Tetradesmus obliquus: the effect of high-pressure pre-treatment
title_full_unstemmed Supercritical CO2 extract from microalga Tetradesmus obliquus: the effect of high-pressure pre-treatment
title_sort Supercritical CO2 extract from microalga Tetradesmus obliquus: the effect of high-pressure pre-treatment
author Vladic, Jelena
author_facet Vladic, Jelena
Jerkovic, Igor
Radman, Sanja
Jazic, Jelena Molnar
Ferreira, Alice
Maletic, Snezana
Gouveia, Luisa
author_role author
author2 Jerkovic, Igor
Radman, Sanja
Jazic, Jelena Molnar
Ferreira, Alice
Maletic, Snezana
Gouveia, Luisa
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Repositório do LNEG
dc.contributor.author.fl_str_mv Vladic, Jelena
Jerkovic, Igor
Radman, Sanja
Jazic, Jelena Molnar
Ferreira, Alice
Maletic, Snezana
Gouveia, Luisa
dc.subject.por.fl_str_mv Microalgae
Tetradesmus obliquus
Supercritical carbon dioxide
High pressure
Green chemistry
topic Microalgae
Tetradesmus obliquus
Supercritical carbon dioxide
High pressure
Green chemistry
description ABSTRACT: 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.
publishDate 2022
dc.date.none.fl_str_mv 2022-07-28T15:47:38Z
2022-06-01T00:00:00Z
2022-06-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.9/3893
url http://hdl.handle.net/10400.9/3893
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Vladic, Jelena... [et.al.] - Supercritical CO2 extract from microalga Tetradesmus obliquus: the effect of high-pressure pre-treatment. In: Molecules, vol. 27 (12), article nº 3883
10.3390/molecules27123883
1420-3049
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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