Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/352318
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dc.contributor.CRUESPUNIVERSIDADE ESTADUAL DE CAMPINASpt_BR
dc.contributor.authorunicampZabot, Giovani Leone-
dc.contributor.authorunicampMoraes, Moysés Naves de-
dc.contributor.authorunicampPetenate, Maria Angela de Almeida Meireles-
dc.typeArtigopt_BR
dc.titleExtraction of tocotrienols from annatto seeds by a pseudo continuously operated SFE process integrated with low-pressure solvent extraction for bixin productionpt_BR
dc.contributor.authorMoraes, M.N.-
dc.contributor.authorZabot, G.L.-
dc.contributor.authorMeireles, M.A.A.-
dc.subjectUrucumpt_BR
dc.subjectExtração com fluído supercríticopt_BR
dc.subject.otherlanguageAnnattopt_BR
dc.subject.otherlanguageSupercritical fluid extractionpt_BR
dc.description.abstractA process to obtain tocotrienols from annatto seeds was studied in a supercritical fluid extraction (SFE) system containing two 1 L extractor vessels with height (HB) to internal diameter (DB) ratios of 7.1 (E-1) and 2.7 (E-2). Pseudo continuous operation of the SFE system was validated by producing clove volatile oil at 40 °C and 15 MPa. To obtain tocotrienols, the system was operated in pseudo continuous mode at 40°C, 20 MPa and CO2 flow rate of 20.7 g/min. The extraction time, from a technical perspective, was set to 60 min, according to kinetic parameters obtained from an overall extraction curve (OEC) with processing time of 360 min. OECs were initially measured in batch mode (BM) and the kinetic parameters for the constant extraction rate (CER) period were determined to be lengths of the CER period (tCER) equal to 43 ± 1 and 42 ± 2 min for E-1 and E-2, respectively; mass transfer rates (MCER) of 0.22 ± 0.01 g/min for both E-1 and E-2; and total yields (RCER) of 50 ± 1 and 49 ± 1 g of extract/100 g of extractable mass for E-1 and E-2, respectively. No differences were observed between each group of kinetic parameters (tCER; MCER; RCER) obtained in BM. Following the measurement of OECs, the SFE system was operated in pseudo continuous mode for four extraction stages of 60 min each with the extractors organized in parallel. This organization improved the productivity of the process. We also proposed the integration of SFE with low-pressure solvent extraction (LPSE) using water and ethanol as solvents to remove bixin from the defatted annatto seeds. LPSE conditions were: 60°C and solvent mass to feed mass ratio (S/F) of 8 g solvent/g annatto for ethanol and 50°C and S/F of 8 g solvent/g annatto for water. LPSE assays were performed in an agitated bed over a 95 min time period. Using partially defatted annatto seeds as the feedstock for LPSE resulted in increased bixin extraction. LPSE with ethanol was found to increase the bixin content in the extract. Thus, the proposed process integration appears to be useful, mainly due to three aspects: (1) the initial removal of the oil layer via supercritical CO2 favors bixin extraction, (2) LPSE is a low-cost methodology for extracting bixin and (3) the cost of raw material in the second step is null.pt_BR
dc.relation.ispartofThe journal of supercritical fluidspt_BR
dc.relation.ispartofabbreviationJ. supercrit. fluidspt_BR
dc.publisher.cityAmsterdampt_BR
dc.publisher.countryPaíses Baixospt_BR
dc.publisherElsevierpt_BR
dc.date.issued2015-
dc.date.monthofcirculationJan.pt_BR
dc.language.isoengpt_BR
dc.description.volume96pt_BR
dc.description.firstpage262pt_BR
dc.description.lastpage271pt_BR
dc.rightsFechadopt_BR
dc.sourceScopuspt_BR
dc.identifier.issn0896-8446pt_BR
dc.identifier.eissn1872-8162pt_BR
dc.identifier.doi10.1016/j.supflu.2014.09.007pt_BR
dc.identifier.urlhttps://www.sciencedirect.com/science/article/pii/S0896844614002824pt_BR
dc.description.sponsorshipCONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQpt_BR
dc.description.sponsorshipCOORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIOR - CAPESpt_BR
dc.description.sponsorshipFUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESPpt_BR
dc.description.sponsordocumentnumber472023/2006-3; 301301/2010-7pt_BR
dc.description.sponsordocumentnumberSem informaçãopt_BR
dc.description.sponsordocumentnumber2012/10685-8; 2011/23665-2pt_BR
dc.date.available2020-11-13T18:50:53Z-
dc.date.accessioned2020-11-13T18:50:53Z-
dc.description.provenanceSubmitted by Bruna Maria Campos da Cunha (bcampos@unicamp.br) on 2020-11-13T18:50:53Z No. of bitstreams: 0en
dc.description.provenanceMade available in DSpace on 2020-11-13T18:50:53Z (GMT). No. of bitstreams: 0 Previous issue date: 2015en
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/352318-
dc.contributor.departmentSem informaçãopt_BR
dc.contributor.departmentSem informaçãopt_BR
dc.contributor.departmentDepartamento de Engenharia de Alimentospt_BR
dc.contributor.unidadeFaculdade de Engenharia de Alimentospt_BR
dc.contributor.unidadeFaculdade de Engenharia de Alimentospt_BR
dc.contributor.unidadeFaculdade de Engenharia de Alimentospt_BR
dc.subject.keywordBixa orellanapt_BR
dc.subject.keywordClovept_BR
dc.subject.keywordEugenia caryophylluspt_BR
dc.subject.keywordProcess integrationpt_BR
dc.identifier.source2-s2.0-84918839380pt_BR
dc.creator.orcid0000-0001-7933-6161pt_BR
dc.creator.orcidSem informaçãopt_BR
dc.creator.orcid0000-0003-0310-7375pt_BR
dc.type.formArtigopt_BR
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