Avaliação de diferentes processos de extração na obtenção de óleo de farelo de arroz
Ano de defesa: | 2015 |
---|---|
Autor(a) principal: | |
Orientador(a): | |
Banca de defesa: | , |
Tipo de documento: | Dissertação |
Tipo de acesso: | Acesso aberto |
Idioma: | por |
Instituição de defesa: |
Universidade Federal de Santa Maria
|
Programa de Pós-Graduação: |
Programa de Pós-Graduação em Engenharia de Processos
|
Departamento: |
Engenharia de Processos
|
País: |
BR
|
Palavras-chave em Português: | |
Palavras-chave em Inglês: | |
Área do conhecimento CNPq: | |
Link de acesso: | http://repositorio.ufsm.br/handle/1/7993 |
Resumo: | Rice bran oil (RBO) is a natural rich source of antioxidants and contains a balanced fatty acids composition, which is of great interest for application in food, cosmetic and pharmaceutical industries. Therefore, the objective of this study was to investigate the rice bran oil extraction using supercritical fluid extraction with carbon dioxide (SFE-CO2), SFE-CO2 assisted by ultrasound (US) and with compressed liquefied petroleum gas (LPG). Also, the antioxidant activity and chemical composition of extracts were evaluated. In the SFE, pressure (150 250 bar) and temperature (40 80 °C) conditions were studied, while in the SFE + US the variables studied were power (160 320 W) and time of ultrasound application (40 120 min). In the extraction using LPG, the pressure (5 25 bar) and the temperature (20 30°C) effects were investigated. The antioxidant activity of the extracts was assayed by DPPH (2,2-diphenyl-1-picrylhydrazyl) radical scavenging method and the chemical composition by gas chromatography mass spectrometry (GC-MS). The maximum yields achieved of RBO were 12.68%, at 250 bar and 40 °C, in the SFE, 12.65%, using 160 W for 40 min in the SFE assisted by US, and 12.07% at 25 bar and 40°C in the extraction with compressed LPG. The antioxidant activity of the extracts ranged from 54.55 71.67% in the SFE, 69.26 72.42% in the SFE + US and 63.55 67.49% in the extraction with compressed LPG. The main antioxidant compound found in different processes was the β-sitosterol, which is one of sterols that compose the γ-oryzanol. The US application in SFE accelerated the process and increased the RBO yield in approximately 27%. In the SFE and SFE + US processes were spent 120 min to obtain 81.93% and 64.38%, respectively, while extraction with compressed LPG took only 5 minutes to extract 78.17% of oil, showing high oil solubility in this solvent. In general, the processes performed well in the recovery of rice bran oil, being considered as technically viable alternatives to conventional processes. |
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2015-11-182015-11-182015-02-19SOARES, Juliana Ferreira. EVALUATION OF DIFFERENT EXTRACTION PROCESSES ON THE OBTAINMENT OF RICE BRAN OIL. 2015. 82 f. Dissertação (Mestrado em Engenharia) - Universidade Federal de Santa Maria, Santa Maria, 2015.http://repositorio.ufsm.br/handle/1/7993Rice bran oil (RBO) is a natural rich source of antioxidants and contains a balanced fatty acids composition, which is of great interest for application in food, cosmetic and pharmaceutical industries. Therefore, the objective of this study was to investigate the rice bran oil extraction using supercritical fluid extraction with carbon dioxide (SFE-CO2), SFE-CO2 assisted by ultrasound (US) and with compressed liquefied petroleum gas (LPG). Also, the antioxidant activity and chemical composition of extracts were evaluated. In the SFE, pressure (150 250 bar) and temperature (40 80 °C) conditions were studied, while in the SFE + US the variables studied were power (160 320 W) and time of ultrasound application (40 120 min). In the extraction using LPG, the pressure (5 25 bar) and the temperature (20 30°C) effects were investigated. The antioxidant activity of the extracts was assayed by DPPH (2,2-diphenyl-1-picrylhydrazyl) radical scavenging method and the chemical composition by gas chromatography mass spectrometry (GC-MS). The maximum yields achieved of RBO were 12.68%, at 250 bar and 40 °C, in the SFE, 12.65%, using 160 W for 40 min in the SFE assisted by US, and 12.07% at 25 bar and 40°C in the extraction with compressed LPG. The antioxidant activity of the extracts ranged from 54.55 71.67% in the SFE, 69.26 72.42% in the SFE + US and 63.55 67.49% in the extraction with compressed LPG. The main antioxidant compound found in different processes was the β-sitosterol, which is one of sterols that compose the γ-oryzanol. The US application in SFE accelerated the process and increased the RBO yield in approximately 27%. In the SFE and SFE + US processes were spent 120 min to obtain 81.93% and 64.38%, respectively, while extraction with compressed LPG took only 5 minutes to extract 78.17% of oil, showing high oil solubility in this solvent. In general, the processes performed well in the recovery of rice bran oil, being considered as technically viable alternatives to conventional processes.O óleo do farelo de arroz (RBO) é uma fonte natural rica em antioxidantes e contém uma composição balanceada de ácidos graxos, o que é de grande interesse para aplicação na indústria alimentícia, cosmética e farmacêutica. Nesse sentido, o objetivo deste trabalho foi estudar a extração do óleo de farelo de arroz pelos processos de extração supercrítica utilizando dióxido de carbono (ESC-CO2), ESC-CO2 assistida por ultrassom (US) e extração com gás liquefeito de petróleo comprimido (GLP), além de avaliar a atividade antioxidante e a composição química dos extratos obtidos. Na ESC foram estudadas as condições de pressão (150 250 bar) e temperatura (40 80 °C), enquanto na ESC + US as variáveis estudadas foram potência (160 320 W) e o tempo de aplicação (40 120 min) do ultrassom. Nas extrações com GLP foi investigado o efeito da pressão (5 25 bar) e da temperatura (20 30 °C). A atividade antioxidante dos extratos foi determinada pelo método do radical DPPH (2,2-difenil-1-picrilhidrazila) e a composição química por cromatografia gasosa acoplada a espectrometria de massas (CG-EM). Os rendimentos máximos alcançados de RBO foram de 12,68%, a 250 bar e 40°C, na ESC, 12,65%, utilizando 160 W por 40 min na ESC assistida por US, e de 12,07% a 25 bar e 40°C na extração com GLP comprimido. A atividade antioxidante dos extratos variou de 54,55 71,67% na ESC, de 69,26 72,42% na ESC + US e de 63,55 67,49% na extração com GLP. O principal composto antioxidante encontrado nos diferentes processos foi o β-sitosterol, que é um dos esteróis que compõem o γ-orizanol. A aplicação do US na ESC acelerou o processo e aumentou em aproximadamente 27% o rendimento de RBO. Nos processos de ESC com e sem aplicação de US foram dispendidos 120 minutos para obtenção de 81,93% e 64,38% de rendimento, respectivamente, enquanto que a extração com GLP comprimido levou apenas 5 minutos para extrair 78,17% de óleo, mostrando a elevada solubilidade do óleo nesse solvente. De um modo geral, os processos obtiveram um bom desempenho na recuperação do óleo do farelo de arroz, sendo consideradas alternativas tecnicamente viáveis aos processos convencionais.Coordenação de Aperfeiçoamento de Pessoal de Nível Superiorapplication/pdfporUniversidade Federal de Santa MariaPrograma de Pós-Graduação em Engenharia de ProcessosUFSMBREngenharia de ProcessosÓleo de farelo de arrozPotencial antioxidanteProcessosExtração supercríticaDióxido de carbonoUltrassomGás liquefeito de petróleoRice bran oilAntioxidant potentialProcessesSupercritical extractionCarbon dioxideUltrasoundLiquefied petroleum gasCNPQ::ENGENHARIAS::ENGENHARIA DE PRODUCAOAvaliação de diferentes processos de extração na obtenção de óleo de farelo de arrozEvaluation of different extraction processes on the obtainment of rice bran oilinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisMazutti, Marcio Antoniohttp://lattes.cnpq.br/3520282081196395Martínez, Julianhttp://lattes.cnpq.br/1346953378512506Lanza, Marcelohttp://lattes.cnpq.br/9025156952498494Tres, Marcus Viníciushttp://lattes.cnpq.br/3057214179765618http://lattes.cnpq.br/1147664349918340Soares, Juliana Ferreira3008000000054005003003003003007d7d5001-84cd-4e08-9476-4ab9b3d8e954639c4c48-ed91-4e87-8895-596986f8a50486c72a15-a679-428c-a256-241435a0ad36322a89ca-182b-4a12-9e94-c6a48cd8fd58b8c2d5f0-b3b1-485d-901f-d1e46f76b63cinfo:eu-repo/semantics/openAccessreponame:Manancial - Repositório Digital da UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMORIGINALSOARES, JULIANA FERREIRA.pdfapplication/pdf1725330http://repositorio.ufsm.br/bitstream/1/7993/1/SOARES%2c%20JULIANA%20FERREIRA.pdf2d31ba2a008e66cf4489b8a0d4279b19MD51TEXTSOARES, JULIANA FERREIRA.pdf.txtSOARES, JULIANA FERREIRA.pdf.txtExtracted texttext/plain141066http://repositorio.ufsm.br/bitstream/1/7993/2/SOARES%2c%20JULIANA%20FERREIRA.pdf.txt4ba7c7a823914110bbdb07c8a33df1f1MD52THUMBNAILSOARES, JULIANA FERREIRA.pdf.jpgSOARES, JULIANA FERREIRA.pdf.jpgIM Thumbnailimage/jpeg4839http://repositorio.ufsm.br/bitstream/1/7993/3/SOARES%2c%20JULIANA%20FERREIRA.pdf.jpga22597a74adf37259cfe5b2ec28600a4MD531/79932022-03-04 08:09:48.956oai:repositorio.ufsm.br:1/7993Repositório Institucionalhttp://repositorio.ufsm.br/PUBhttp://repositorio.ufsm.br/oai/requestopendoar:39132022-03-04T11:09:48Manancial - Repositório Digital da UFSM - Universidade Federal de Santa Maria (UFSM)false |
dc.title.por.fl_str_mv |
Avaliação de diferentes processos de extração na obtenção de óleo de farelo de arroz |
dc.title.alternative.eng.fl_str_mv |
Evaluation of different extraction processes on the obtainment of rice bran oil |
title |
Avaliação de diferentes processos de extração na obtenção de óleo de farelo de arroz |
spellingShingle |
Avaliação de diferentes processos de extração na obtenção de óleo de farelo de arroz Soares, Juliana Ferreira Óleo de farelo de arroz Potencial antioxidante Processos Extração supercrítica Dióxido de carbono Ultrassom Gás liquefeito de petróleo Rice bran oil Antioxidant potential Processes Supercritical extraction Carbon dioxide Ultrasound Liquefied petroleum gas CNPQ::ENGENHARIAS::ENGENHARIA DE PRODUCAO |
title_short |
Avaliação de diferentes processos de extração na obtenção de óleo de farelo de arroz |
title_full |
Avaliação de diferentes processos de extração na obtenção de óleo de farelo de arroz |
title_fullStr |
Avaliação de diferentes processos de extração na obtenção de óleo de farelo de arroz |
title_full_unstemmed |
Avaliação de diferentes processos de extração na obtenção de óleo de farelo de arroz |
title_sort |
Avaliação de diferentes processos de extração na obtenção de óleo de farelo de arroz |
author |
Soares, Juliana Ferreira |
author_facet |
Soares, Juliana Ferreira |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Mazutti, Marcio Antonio |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/3520282081196395 |
dc.contributor.advisor-co1.fl_str_mv |
Martínez, Julian |
dc.contributor.advisor-co1Lattes.fl_str_mv |
http://lattes.cnpq.br/1346953378512506 |
dc.contributor.referee1.fl_str_mv |
Lanza, Marcelo |
dc.contributor.referee1Lattes.fl_str_mv |
http://lattes.cnpq.br/9025156952498494 |
dc.contributor.referee2.fl_str_mv |
Tres, Marcus Vinícius |
dc.contributor.referee2Lattes.fl_str_mv |
http://lattes.cnpq.br/3057214179765618 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/1147664349918340 |
dc.contributor.author.fl_str_mv |
Soares, Juliana Ferreira |
contributor_str_mv |
Mazutti, Marcio Antonio Martínez, Julian Lanza, Marcelo Tres, Marcus Vinícius |
dc.subject.por.fl_str_mv |
Óleo de farelo de arroz Potencial antioxidante Processos Extração supercrítica Dióxido de carbono Ultrassom Gás liquefeito de petróleo |
topic |
Óleo de farelo de arroz Potencial antioxidante Processos Extração supercrítica Dióxido de carbono Ultrassom Gás liquefeito de petróleo Rice bran oil Antioxidant potential Processes Supercritical extraction Carbon dioxide Ultrasound Liquefied petroleum gas CNPQ::ENGENHARIAS::ENGENHARIA DE PRODUCAO |
dc.subject.eng.fl_str_mv |
Rice bran oil Antioxidant potential Processes Supercritical extraction Carbon dioxide Ultrasound Liquefied petroleum gas |
dc.subject.cnpq.fl_str_mv |
CNPQ::ENGENHARIAS::ENGENHARIA DE PRODUCAO |
description |
Rice bran oil (RBO) is a natural rich source of antioxidants and contains a balanced fatty acids composition, which is of great interest for application in food, cosmetic and pharmaceutical industries. Therefore, the objective of this study was to investigate the rice bran oil extraction using supercritical fluid extraction with carbon dioxide (SFE-CO2), SFE-CO2 assisted by ultrasound (US) and with compressed liquefied petroleum gas (LPG). Also, the antioxidant activity and chemical composition of extracts were evaluated. In the SFE, pressure (150 250 bar) and temperature (40 80 °C) conditions were studied, while in the SFE + US the variables studied were power (160 320 W) and time of ultrasound application (40 120 min). In the extraction using LPG, the pressure (5 25 bar) and the temperature (20 30°C) effects were investigated. The antioxidant activity of the extracts was assayed by DPPH (2,2-diphenyl-1-picrylhydrazyl) radical scavenging method and the chemical composition by gas chromatography mass spectrometry (GC-MS). The maximum yields achieved of RBO were 12.68%, at 250 bar and 40 °C, in the SFE, 12.65%, using 160 W for 40 min in the SFE assisted by US, and 12.07% at 25 bar and 40°C in the extraction with compressed LPG. The antioxidant activity of the extracts ranged from 54.55 71.67% in the SFE, 69.26 72.42% in the SFE + US and 63.55 67.49% in the extraction with compressed LPG. The main antioxidant compound found in different processes was the β-sitosterol, which is one of sterols that compose the γ-oryzanol. The US application in SFE accelerated the process and increased the RBO yield in approximately 27%. In the SFE and SFE + US processes were spent 120 min to obtain 81.93% and 64.38%, respectively, while extraction with compressed LPG took only 5 minutes to extract 78.17% of oil, showing high oil solubility in this solvent. In general, the processes performed well in the recovery of rice bran oil, being considered as technically viable alternatives to conventional processes. |
publishDate |
2015 |
dc.date.accessioned.fl_str_mv |
2015-11-18 |
dc.date.available.fl_str_mv |
2015-11-18 |
dc.date.issued.fl_str_mv |
2015-02-19 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
SOARES, Juliana Ferreira. EVALUATION OF DIFFERENT EXTRACTION PROCESSES ON THE OBTAINMENT OF RICE BRAN OIL. 2015. 82 f. Dissertação (Mestrado em Engenharia) - Universidade Federal de Santa Maria, Santa Maria, 2015. |
dc.identifier.uri.fl_str_mv |
http://repositorio.ufsm.br/handle/1/7993 |
identifier_str_mv |
SOARES, Juliana Ferreira. EVALUATION OF DIFFERENT EXTRACTION PROCESSES ON THE OBTAINMENT OF RICE BRAN OIL. 2015. 82 f. Dissertação (Mestrado em Engenharia) - Universidade Federal de Santa Maria, Santa Maria, 2015. |
url |
http://repositorio.ufsm.br/handle/1/7993 |
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UFSM |
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Universidade Federal de Santa Maria |
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