Spectroscopic characterization and thermal behavior of baru nut and macaw palm vegetable oils and their epoxidized derivatives
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.indcrop.2020.112585 http://hdl.handle.net/11449/201861 |
Resumo: | The ability to produce new and renewable, epoxidized Brazilian vegetable oils from baru nut (Dipteryx alata Vogel) and macaw palm (Acrocomia aculeata) oil, using a fast and clean heterogeneous catalytic method, was investigated. The Wijs method and Proton Nuclear Magnetic Resonance (1H-NMR) analysis were utilized, and compared to one another, to calculate the iodine value (IV), average number of double bonds (DBaverage) and fatty acid content, and thus degree of epoxidation, for both vegetable oils. This analysis indicated that alkene conversions of >99% and 95.3% were obtained for baru nut oil and macaw palm oil, respectively; which is an excellent result when compared with some works in literature. The epoxidized Baru nut oil is a solid at room temperature, which was related to the percentage of mono-unsaturated fatty acids present in its structure. Epoxide samples were also analyzed via mid-Infrared Spectroscopy and 13C NMR analysis. Thermogravimetry-differential thermal analysis (TG-DTA) was used to determine the thermal stability of these epoxidized oils. Differential Scanning Calorimetry (DSC) also provided information about their crystallization, melting and solid-solid transition processes. |
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Spectroscopic characterization and thermal behavior of baru nut and macaw palm vegetable oils and their epoxidized derivativesEpoxidationFatty acid contentMid-infrared spectroscopyRenewable monomersSolid epoxy oilThermal propertiesThe ability to produce new and renewable, epoxidized Brazilian vegetable oils from baru nut (Dipteryx alata Vogel) and macaw palm (Acrocomia aculeata) oil, using a fast and clean heterogeneous catalytic method, was investigated. The Wijs method and Proton Nuclear Magnetic Resonance (1H-NMR) analysis were utilized, and compared to one another, to calculate the iodine value (IV), average number of double bonds (DBaverage) and fatty acid content, and thus degree of epoxidation, for both vegetable oils. This analysis indicated that alkene conversions of >99% and 95.3% were obtained for baru nut oil and macaw palm oil, respectively; which is an excellent result when compared with some works in literature. The epoxidized Baru nut oil is a solid at room temperature, which was related to the percentage of mono-unsaturated fatty acids present in its structure. Epoxide samples were also analyzed via mid-Infrared Spectroscopy and 13C NMR analysis. Thermogravimetry-differential thermal analysis (TG-DTA) was used to determine the thermal stability of these epoxidized oils. Differential Scanning Calorimetry (DSC) also provided information about their crystallization, melting and solid-solid transition processes.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)UNESP- São Paulo State University School of Sciences Department of ChemistryThe University of York Green Chemistry Centre of Excellence Department of ChemistryUNESP- São Paulo State University School of Sciences Department of ChemistryUniversidade Estadual Paulista (Unesp)Green Chemistry Centre of ExcellenceAlarcon, Rafael T. [UNESP]Gaglieri, Caroline [UNESP]Lamb, Katie J.North, MichaelBannach, Gilbert [UNESP]2020-12-12T02:43:46Z2020-12-12T02:43:46Z2020-10-15info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.indcrop.2020.112585Industrial Crops and Products, v. 154.0926-6690http://hdl.handle.net/11449/20186110.1016/j.indcrop.2020.1125852-s2.0-85086307434Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengIndustrial Crops and Productsinfo:eu-repo/semantics/openAccess2024-04-29T18:17:00Zoai:repositorio.unesp.br:11449/201861Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-04-29T18:17Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Spectroscopic characterization and thermal behavior of baru nut and macaw palm vegetable oils and their epoxidized derivatives |
title |
Spectroscopic characterization and thermal behavior of baru nut and macaw palm vegetable oils and their epoxidized derivatives |
spellingShingle |
Spectroscopic characterization and thermal behavior of baru nut and macaw palm vegetable oils and their epoxidized derivatives Alarcon, Rafael T. [UNESP] Epoxidation Fatty acid content Mid-infrared spectroscopy Renewable monomers Solid epoxy oil Thermal properties |
title_short |
Spectroscopic characterization and thermal behavior of baru nut and macaw palm vegetable oils and their epoxidized derivatives |
title_full |
Spectroscopic characterization and thermal behavior of baru nut and macaw palm vegetable oils and their epoxidized derivatives |
title_fullStr |
Spectroscopic characterization and thermal behavior of baru nut and macaw palm vegetable oils and their epoxidized derivatives |
title_full_unstemmed |
Spectroscopic characterization and thermal behavior of baru nut and macaw palm vegetable oils and their epoxidized derivatives |
title_sort |
Spectroscopic characterization and thermal behavior of baru nut and macaw palm vegetable oils and their epoxidized derivatives |
author |
Alarcon, Rafael T. [UNESP] |
author_facet |
Alarcon, Rafael T. [UNESP] Gaglieri, Caroline [UNESP] Lamb, Katie J. North, Michael Bannach, Gilbert [UNESP] |
author_role |
author |
author2 |
Gaglieri, Caroline [UNESP] Lamb, Katie J. North, Michael Bannach, Gilbert [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Green Chemistry Centre of Excellence |
dc.contributor.author.fl_str_mv |
Alarcon, Rafael T. [UNESP] Gaglieri, Caroline [UNESP] Lamb, Katie J. North, Michael Bannach, Gilbert [UNESP] |
dc.subject.por.fl_str_mv |
Epoxidation Fatty acid content Mid-infrared spectroscopy Renewable monomers Solid epoxy oil Thermal properties |
topic |
Epoxidation Fatty acid content Mid-infrared spectroscopy Renewable monomers Solid epoxy oil Thermal properties |
description |
The ability to produce new and renewable, epoxidized Brazilian vegetable oils from baru nut (Dipteryx alata Vogel) and macaw palm (Acrocomia aculeata) oil, using a fast and clean heterogeneous catalytic method, was investigated. The Wijs method and Proton Nuclear Magnetic Resonance (1H-NMR) analysis were utilized, and compared to one another, to calculate the iodine value (IV), average number of double bonds (DBaverage) and fatty acid content, and thus degree of epoxidation, for both vegetable oils. This analysis indicated that alkene conversions of >99% and 95.3% were obtained for baru nut oil and macaw palm oil, respectively; which is an excellent result when compared with some works in literature. The epoxidized Baru nut oil is a solid at room temperature, which was related to the percentage of mono-unsaturated fatty acids present in its structure. Epoxide samples were also analyzed via mid-Infrared Spectroscopy and 13C NMR analysis. Thermogravimetry-differential thermal analysis (TG-DTA) was used to determine the thermal stability of these epoxidized oils. Differential Scanning Calorimetry (DSC) also provided information about their crystallization, melting and solid-solid transition processes. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-12-12T02:43:46Z 2020-12-12T02:43:46Z 2020-10-15 |
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://dx.doi.org/10.1016/j.indcrop.2020.112585 Industrial Crops and Products, v. 154. 0926-6690 http://hdl.handle.net/11449/201861 10.1016/j.indcrop.2020.112585 2-s2.0-85086307434 |
url |
http://dx.doi.org/10.1016/j.indcrop.2020.112585 http://hdl.handle.net/11449/201861 |
identifier_str_mv |
Industrial Crops and Products, v. 154. 0926-6690 10.1016/j.indcrop.2020.112585 2-s2.0-85086307434 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Industrial Crops and Products |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1799965043799883776 |