Interesterifica??o qu?mica do ?leo de palma e do ?leo de palmiste na presen?a do catalisador heterog?neo DAPTS-MCM-41
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Tipo de documento: | Tese |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações da UFRRJ |
Texto Completo: | https://tede.ufrrj.br/jspui/handle/jspui/3089 |
Resumo: | The role of lipids in human nutrition has been intensely debated in recent decades. This context reinforces the concern with uncontrolled intake of trans fats because of their negative health implications. The interesterification is an important alternative to modify the consistency of oils and fats without causing the formation of trans isomers, as in the partial hydrogenation process of fats. The chemical interesterification process involves the use of metal catalysts such as alkylates, alkali metals and alkali hydroxides in combination with glycerol. Such catalysts, addition of highly toxic, are extremely susceptible to inactivation by water and free fatty acids, and are affected by peroxides, carbon dioxide and oxygen, and require additional process steps such as neutralization of the caustic catalyst. Heterogeneous catalysts are presented as promising substitutes for homogeneous catalysts. Such catalysts have the advantage to significantly reduce the number of product purification steps, as well as the possibility of being reused, thus enabling the production by continuous process. This work has as main objective the evaluation of chemical interesterification reaction of palm oil, palm kernel oil and mixtures thereof in the presence of heterogeneous catalysts of the MCM-41 type modified with organic bases. To this a molecular sieve of the MCM-41 type was synthesized and subsequently functionalized with the base 3-ethylenediamine (trimethoxy)propyl silane (DAPTS). This material was characterized by the techniques of X-ray diffraction (XRD), infrared spectroscopy (FTIR) and textural analysis, where the results showed a good synthesis of molecular sieve and also showed the anchoring base on its surface. The evaluation of the physical properties of the reaction products were performed by determining the solid fat content (SFC) and the melting point, which show significant changes in these parameters. The incompatibility shown by the mixtures were minimized after interesterification. The iodine value and fatty acid profile of the interesterified blends showed no significant variation, showing so there were no undesirable reactions in the process. The triacilglicer?dica composition of the interesterified blends were evaluated and showed significant differences of starting materials, especially for the presence of saturated fatty acids in sn-2 position of the triacylglycerol, pointing again to the activity of DAPTS-MCM-41 catalyst in the reaction studied. |
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Saldanha, Tatiana079.434.767-35Machado J?nior, H?lio Fernandas865.780.307-00Saldanha, TatianaBarbosa J?nior , Jos? LucenaCarvalho, M?rio Geraldo deAntoniassi, RosemarNogueira, Luciana Cardoso023.601.967-82http://lattes.cnpq.br/6012598173554651Gamallo, Ormindo Domingues2019-11-13T19:52:30Z2015-07-21GAMALLO, Ormindo Domingues. Interesterifica??o qu?mica do ?leo de palma e do ?leo de palmiste na presen?a do catalisador heterog?neo DAPTS-MCM-41. 2015. 120 f. Tese (Doutorado em Ci?ncia e Tecnologia de Alimentos). Instituto de Tecnologia. Universidade Federal Rural do Rio de Janeiro, Serop?dica, RJ, 2015.https://tede.ufrrj.br/jspui/handle/jspui/3089The role of lipids in human nutrition has been intensely debated in recent decades. This context reinforces the concern with uncontrolled intake of trans fats because of their negative health implications. The interesterification is an important alternative to modify the consistency of oils and fats without causing the formation of trans isomers, as in the partial hydrogenation process of fats. The chemical interesterification process involves the use of metal catalysts such as alkylates, alkali metals and alkali hydroxides in combination with glycerol. Such catalysts, addition of highly toxic, are extremely susceptible to inactivation by water and free fatty acids, and are affected by peroxides, carbon dioxide and oxygen, and require additional process steps such as neutralization of the caustic catalyst. Heterogeneous catalysts are presented as promising substitutes for homogeneous catalysts. Such catalysts have the advantage to significantly reduce the number of product purification steps, as well as the possibility of being reused, thus enabling the production by continuous process. This work has as main objective the evaluation of chemical interesterification reaction of palm oil, palm kernel oil and mixtures thereof in the presence of heterogeneous catalysts of the MCM-41 type modified with organic bases. To this a molecular sieve of the MCM-41 type was synthesized and subsequently functionalized with the base 3-ethylenediamine (trimethoxy)propyl silane (DAPTS). This material was characterized by the techniques of X-ray diffraction (XRD), infrared spectroscopy (FTIR) and textural analysis, where the results showed a good synthesis of molecular sieve and also showed the anchoring base on its surface. The evaluation of the physical properties of the reaction products were performed by determining the solid fat content (SFC) and the melting point, which show significant changes in these parameters. The incompatibility shown by the mixtures were minimized after interesterification. The iodine value and fatty acid profile of the interesterified blends showed no significant variation, showing so there were no undesirable reactions in the process. The triacilglicer?dica composition of the interesterified blends were evaluated and showed significant differences of starting materials, especially for the presence of saturated fatty acids in sn-2 position of the triacylglycerol, pointing again to the activity of DAPTS-MCM-41 catalyst in the reaction studied.O papel dos lip?dios na nutri??o humana tem sido intensamente debatido nas ?ltimas d?cadas. Este contexto refor?a a preocupa??o com o controle da ingest?o de gorduras trans, devido as suas implica??es negativas ? sa?de. A interesterifica??o ? uma alternativa importante para modificar a consist?ncia dos ?leos e gorduras sem provocar a forma??o de is?meros trans, como acontece no processo de hidrogena??o parcial de gorduras. O processo de interesterifica??o qu?mica implica no uso de catalisadores como alquilatos met?licos, metais alcalinos e hidr?xidos alcalinos em combina??o com o glicerol. Tais catalisadores, al?m de altamente t?xicos, s?o extremamente suscet?veis ? inativa??o por ?gua e por ?cidos graxos livres, bem como s?o afetados por per?xidos, di?xido de carbono e oxig?nio, al?m de exigirem etapas adicionais no processo como a neutraliza??o do catalisador c?ustico. Os catalisadores heterog?neos apresentam-se como substitutos promissores dos catalisadores homog?neos. Tais catalisadores apresentam as vantagens como reduzir significativamente o n?mero de etapas de purifica??o dos produtos, bem como a possibilidade de serem reutilizados, viabilizando a produ??o por processo cont?nuo. Este trabalho tem como objetivo principal a avalia??o da rea??o de interesterifica??o qu?mica do ?leo de palma, do ?leo de palmiste e suas misturas na presen?a de catalisadores heterog?neos do tipo MCM-41 modificados com bases org?nicas. Para isto uma peneira molecular do tipo MCM-41 foi sintetizada e posteriormente funcionalizada com a base 3-etilenodiamino(trimetoxi)propil silano (DAPTS). Este material foi caracterizado pelas t?cnicas de difra??o de raios X (DRX), espectroscopia no infravermelho (FTIR) e an?lise textural, onde os resultados apontaram para uma boa s?ntese da peneira molecular e tamb?m mostraram o ancoramento da base na sua superf?cie. A avalia??o das propriedades f?sicas dos produtos de rea??o foram realizadas atrav?s da determina??o do conte?do de gordura solida (SFC) e do ponto de fus?o, que revelaram mudan?as significativas nestes par?metro. A incompatibilidade apresentada pelas misturas foram minimizadas ap?s a interesterifica??o. O ?ndice de iodo e o perfil de ?cidos graxos das misturas interesterificadas n?o apresentaram varia??o significativa, evidenciando assim que n?o ocorreram rea??es indesej?veis no processo. A composi??o triacilglicer?dica e a distribui??o de ?cidos graxos nas posi??es sn-1,3 e sn-2 da estrutura do glicerol, das misturas interesterificadas, foram avaliadas e apresentaram diferen?as significativas dos materiais de partida, principalmente quanto a presen?a de ?cidos graxos saturados na posi??o sn-2 do triacilglicerol, apontando mais uma vez para a atividade do catalisador DAPTS-MCM-41 na rea??o estudada.Submitted by Jorge Silva (jorgelmsilva@ufrrj.br) on 2019-11-13T19:52:30Z No. of bitstreams: 1 2015 - Ormindo Domingues Gamallo.pdf: 2082700 bytes, checksum: 3a173111a8cf4d75a846a68327aaf9b0 (MD5)Made available in DSpace on 2019-11-13T19:52:30Z (GMT). No. of bitstreams: 1 2015 - Ormindo Domingues Gamallo.pdf: 2082700 bytes, checksum: 3a173111a8cf4d75a846a68327aaf9b0 (MD5) Previous issue date: 2015-07-21application/pdfhttps://tede.ufrrj.br/retrieve/11414/2015%20-%20Ormindo%20Domingues%20Gamallo.pdf.jpghttps://tede.ufrrj.br/retrieve/16790/2015%20-%20Ormindo%20Domingues%20Gamallo.pdf.jpghttps://tede.ufrrj.br/retrieve/23134/2015%20-%20Ormindo%20Domingues%20Gamallo.pdf.jpghttps://tede.ufrrj.br/retrieve/29496/2015%20-%20Ormindo%20Domingues%20Gamallo.pdf.jpghttps://tede.ufrrj.br/retrieve/35842/2015%20-%20Ormindo%20Domingues%20Gamallo.pdf.jpghttps://tede.ufrrj.br/retrieve/42244/2015%20-%20Ormindo%20Domingues%20Gamallo.pdf.jpghttps://tede.ufrrj.br/retrieve/48632/2015%20-%20Ormindo%20Domingues%20Gamallo.pdf.jpghttps://tede.ufrrj.br/retrieve/55096/2015%20-%20Ormindo%20Domingues%20Gamallo.pdf.jpgporUniversidade Federal Rural do Rio de JaneiroPrograma de P?s-Gradua??o em Ci?ncia e Tecnologia de AlimentosUFRRJBrasilInstituto de TecnologiaInteresterifica??o?leos vegetaiscat?lise heterog?neaInteresterificationvegetable oilsheterogeneous catalysisCi?ncia e Tecnologia de AlimentosInteresterifica??o qu?mica do ?leo de palma e do ?leo de palmiste na presen?a do catalisador heterog?neo DAPTS-MCM-41Interesterification of palm oil and palm kernel oil blends catalyzed by DAPTS-MCM-41 as a heterogeneous base catalystinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisinfo:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações da UFRRJinstname:Universidade Federal Rural do Rio de Janeiro (UFRRJ)instacron:UFRRJTHUMBNAIL2015 - Ormindo Domingues Gamallo.pdf.jpg2015 - Ormindo Domingues Gamallo.pdf.jpgimage/jpeg1943http://localhost:8080/tede/bitstream/jspui/3089/18/2015+-+Ormindo+Domingues+Gamallo.pdf.jpgcc73c4c239a4c332d642ba1e7c7a9fb2MD518TEXT2015 - Ormindo Domingues Gamallo.pdf.txt2015 - Ormindo Domingues Gamallo.pdf.txttext/plain253701http://localhost:8080/tede/bitstream/jspui/3089/17/2015+-+Ormindo+Domingues+Gamallo.pdf.txtc91c2d368620573da936cdc9ce407151MD517ORIGINAL2015 - Ormindo Domingues Gamallo.pdf2015 - Ormindo Domingues Gamallo.pdfapplication/pdf2082700http://localhost:8080/tede/bitstream/jspui/3089/2/2015+-+Ormindo+Domingues+Gamallo.pdf3a173111a8cf4d75a846a68327aaf9b0MD52LICENSElicense.txtlicense.txttext/plain; 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dc.title.por.fl_str_mv |
Interesterifica??o qu?mica do ?leo de palma e do ?leo de palmiste na presen?a do catalisador heterog?neo DAPTS-MCM-41 |
dc.title.alternative.eng.fl_str_mv |
Interesterification of palm oil and palm kernel oil blends catalyzed by DAPTS-MCM-41 as a heterogeneous base catalyst |
title |
Interesterifica??o qu?mica do ?leo de palma e do ?leo de palmiste na presen?a do catalisador heterog?neo DAPTS-MCM-41 |
spellingShingle |
Interesterifica??o qu?mica do ?leo de palma e do ?leo de palmiste na presen?a do catalisador heterog?neo DAPTS-MCM-41 Gamallo, Ormindo Domingues Interesterifica??o ?leos vegetais cat?lise heterog?nea Interesterification vegetable oils heterogeneous catalysis Ci?ncia e Tecnologia de Alimentos |
title_short |
Interesterifica??o qu?mica do ?leo de palma e do ?leo de palmiste na presen?a do catalisador heterog?neo DAPTS-MCM-41 |
title_full |
Interesterifica??o qu?mica do ?leo de palma e do ?leo de palmiste na presen?a do catalisador heterog?neo DAPTS-MCM-41 |
title_fullStr |
Interesterifica??o qu?mica do ?leo de palma e do ?leo de palmiste na presen?a do catalisador heterog?neo DAPTS-MCM-41 |
title_full_unstemmed |
Interesterifica??o qu?mica do ?leo de palma e do ?leo de palmiste na presen?a do catalisador heterog?neo DAPTS-MCM-41 |
title_sort |
Interesterifica??o qu?mica do ?leo de palma e do ?leo de palmiste na presen?a do catalisador heterog?neo DAPTS-MCM-41 |
author |
Gamallo, Ormindo Domingues |
author_facet |
Gamallo, Ormindo Domingues |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Saldanha, Tatiana |
dc.contributor.advisor1ID.fl_str_mv |
079.434.767-35 |
dc.contributor.advisor-co1.fl_str_mv |
Machado J?nior, H?lio Fernandas |
dc.contributor.advisor-co1ID.fl_str_mv |
865.780.307-00 |
dc.contributor.referee1.fl_str_mv |
Saldanha, Tatiana |
dc.contributor.referee2.fl_str_mv |
Barbosa J?nior , Jos? Lucena |
dc.contributor.referee3.fl_str_mv |
Carvalho, M?rio Geraldo de |
dc.contributor.referee4.fl_str_mv |
Antoniassi, Rosemar |
dc.contributor.referee5.fl_str_mv |
Nogueira, Luciana Cardoso |
dc.contributor.authorID.fl_str_mv |
023.601.967-82 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/6012598173554651 |
dc.contributor.author.fl_str_mv |
Gamallo, Ormindo Domingues |
contributor_str_mv |
Saldanha, Tatiana Machado J?nior, H?lio Fernandas Saldanha, Tatiana Barbosa J?nior , Jos? Lucena Carvalho, M?rio Geraldo de Antoniassi, Rosemar Nogueira, Luciana Cardoso |
dc.subject.por.fl_str_mv |
Interesterifica??o ?leos vegetais cat?lise heterog?nea |
topic |
Interesterifica??o ?leos vegetais cat?lise heterog?nea Interesterification vegetable oils heterogeneous catalysis Ci?ncia e Tecnologia de Alimentos |
dc.subject.eng.fl_str_mv |
Interesterification vegetable oils heterogeneous catalysis |
dc.subject.cnpq.fl_str_mv |
Ci?ncia e Tecnologia de Alimentos |
description |
The role of lipids in human nutrition has been intensely debated in recent decades. This context reinforces the concern with uncontrolled intake of trans fats because of their negative health implications. The interesterification is an important alternative to modify the consistency of oils and fats without causing the formation of trans isomers, as in the partial hydrogenation process of fats. The chemical interesterification process involves the use of metal catalysts such as alkylates, alkali metals and alkali hydroxides in combination with glycerol. Such catalysts, addition of highly toxic, are extremely susceptible to inactivation by water and free fatty acids, and are affected by peroxides, carbon dioxide and oxygen, and require additional process steps such as neutralization of the caustic catalyst. Heterogeneous catalysts are presented as promising substitutes for homogeneous catalysts. Such catalysts have the advantage to significantly reduce the number of product purification steps, as well as the possibility of being reused, thus enabling the production by continuous process. This work has as main objective the evaluation of chemical interesterification reaction of palm oil, palm kernel oil and mixtures thereof in the presence of heterogeneous catalysts of the MCM-41 type modified with organic bases. To this a molecular sieve of the MCM-41 type was synthesized and subsequently functionalized with the base 3-ethylenediamine (trimethoxy)propyl silane (DAPTS). This material was characterized by the techniques of X-ray diffraction (XRD), infrared spectroscopy (FTIR) and textural analysis, where the results showed a good synthesis of molecular sieve and also showed the anchoring base on its surface. The evaluation of the physical properties of the reaction products were performed by determining the solid fat content (SFC) and the melting point, which show significant changes in these parameters. The incompatibility shown by the mixtures were minimized after interesterification. The iodine value and fatty acid profile of the interesterified blends showed no significant variation, showing so there were no undesirable reactions in the process. The triacilglicer?dica composition of the interesterified blends were evaluated and showed significant differences of starting materials, especially for the presence of saturated fatty acids in sn-2 position of the triacylglycerol, pointing again to the activity of DAPTS-MCM-41 catalyst in the reaction studied. |
publishDate |
2015 |
dc.date.issued.fl_str_mv |
2015-07-21 |
dc.date.accessioned.fl_str_mv |
2019-11-13T19:52:30Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
format |
doctoralThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
GAMALLO, Ormindo Domingues. Interesterifica??o qu?mica do ?leo de palma e do ?leo de palmiste na presen?a do catalisador heterog?neo DAPTS-MCM-41. 2015. 120 f. Tese (Doutorado em Ci?ncia e Tecnologia de Alimentos). Instituto de Tecnologia. Universidade Federal Rural do Rio de Janeiro, Serop?dica, RJ, 2015. |
dc.identifier.uri.fl_str_mv |
https://tede.ufrrj.br/jspui/handle/jspui/3089 |
identifier_str_mv |
GAMALLO, Ormindo Domingues. Interesterifica??o qu?mica do ?leo de palma e do ?leo de palmiste na presen?a do catalisador heterog?neo DAPTS-MCM-41. 2015. 120 f. Tese (Doutorado em Ci?ncia e Tecnologia de Alimentos). Instituto de Tecnologia. Universidade Federal Rural do Rio de Janeiro, Serop?dica, RJ, 2015. |
url |
https://tede.ufrrj.br/jspui/handle/jspui/3089 |
dc.language.iso.fl_str_mv |
por |
language |
por |
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 |
Universidade Federal Rural do Rio de Janeiro |
dc.publisher.program.fl_str_mv |
Programa de P?s-Gradua??o em Ci?ncia e Tecnologia de Alimentos |
dc.publisher.initials.fl_str_mv |
UFRRJ |
dc.publisher.country.fl_str_mv |
Brasil |
dc.publisher.department.fl_str_mv |
Instituto de Tecnologia |
publisher.none.fl_str_mv |
Universidade Federal Rural do Rio de Janeiro |
dc.source.none.fl_str_mv |
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Universidade Federal Rural do Rio de Janeiro (UFRRJ) |
instacron_str |
UFRRJ |
institution |
UFRRJ |
reponame_str |
Biblioteca Digital de Teses e Dissertações da UFRRJ |
collection |
Biblioteca Digital de Teses e Dissertações da UFRRJ |
bitstream.url.fl_str_mv |
http://localhost:8080/tede/bitstream/jspui/3089/18/2015+-+Ormindo+Domingues+Gamallo.pdf.jpg http://localhost:8080/tede/bitstream/jspui/3089/17/2015+-+Ormindo+Domingues+Gamallo.pdf.txt http://localhost:8080/tede/bitstream/jspui/3089/2/2015+-+Ormindo+Domingues+Gamallo.pdf http://localhost:8080/tede/bitstream/jspui/3089/1/license.txt |
bitstream.checksum.fl_str_mv |
cc73c4c239a4c332d642ba1e7c7a9fb2 c91c2d368620573da936cdc9ce407151 3a173111a8cf4d75a846a68327aaf9b0 7b5ba3d2445355f386edab96125d42b7 |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 MD5 MD5 |
repository.name.fl_str_mv |
Biblioteca Digital de Teses e Dissertações da UFRRJ - Universidade Federal Rural do Rio de Janeiro (UFRRJ) |
repository.mail.fl_str_mv |
bibliot@ufrrj.br||bibliot@ufrrj.br |
_version_ |
1800313494279553024 |