Efficiency of mechanical extraction of Moringa oleifera according to different grain drying conditions
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 UFLA |
Texto Completo: | http://repositorio.ufla.br/jspui/handle/1/46685 |
Resumo: | Moringa oleifera Lam. is a drought-resistant plant and able to survive in poor soils, obtaining up to three harvests per year. This culture has wide employability in the cosmetics, medicinal, food industry and also as a potential for water purification. Despite its widespread use, there are few studies on its processing. Thus, the objective of this work was to study the behavior during the drying process, at the drying air temperatures of 40 ºC, 55 ºC and 70 ºC, applying mathematical models to the experimental data, thus selecting the best model according to the kinetics curves of drying, as well as evaluating the effect of this phenomenon on the efficiency of mechanical oil extraction. Pre-dried Moringa oleifera Lam. grains from the city of Barreirinhas (MA) were used, the second semester of 2018 and the experiment conducted at the Agricultural Engineering Department of the Federal University of Lavras (MG). Artificial drying was carried out to a constant grain mass, using a mechanical laboratory dryer in a fixed layer with forced convection, at an air speed of 0.33 ms-1, with controlled drying air temperatures of 40 °C, 55 °C, and 70 °C. Non-linear regression analysis was performed using the Quasi-Newton method to adjust 11 mathematical models to experimental data. The oil was extracted using an expeller-type mechanical press. The press yield and efficiency were calculated from the difference in lipid content obtained by the initial chemical extraction of the grain and residual of the pie. The Exponential Equation of Two Terms was the one that best suited the experimental data for all drying air temperatures. The increase in the temperature of the drying air caused greater volumetric contraction of the moringa grains, which affected the oil extraction yield, resulting in lower efficiency of the mechanical press. |
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Efficiency of mechanical extraction of Moringa oleifera according to different grain drying conditionsEficiência da extração mecânica de Moringa oleifera de acordo com diferentes condições de secagem de grãosEficiencia de la extracción mecánica de Moringa oleifera según diferentes condiciones de secado del granoMoringa - ProcessamentoMoringa - SecagemProdutos agrícolasÓleo - RendimentoMoringa - ProcessingMoringa - DryingAgricultural productsOil yieldMoringa oleifera Lam. is a drought-resistant plant and able to survive in poor soils, obtaining up to three harvests per year. This culture has wide employability in the cosmetics, medicinal, food industry and also as a potential for water purification. Despite its widespread use, there are few studies on its processing. Thus, the objective of this work was to study the behavior during the drying process, at the drying air temperatures of 40 ºC, 55 ºC and 70 ºC, applying mathematical models to the experimental data, thus selecting the best model according to the kinetics curves of drying, as well as evaluating the effect of this phenomenon on the efficiency of mechanical oil extraction. Pre-dried Moringa oleifera Lam. grains from the city of Barreirinhas (MA) were used, the second semester of 2018 and the experiment conducted at the Agricultural Engineering Department of the Federal University of Lavras (MG). Artificial drying was carried out to a constant grain mass, using a mechanical laboratory dryer in a fixed layer with forced convection, at an air speed of 0.33 ms-1, with controlled drying air temperatures of 40 °C, 55 °C, and 70 °C. Non-linear regression analysis was performed using the Quasi-Newton method to adjust 11 mathematical models to experimental data. The oil was extracted using an expeller-type mechanical press. The press yield and efficiency were calculated from the difference in lipid content obtained by the initial chemical extraction of the grain and residual of the pie. The Exponential Equation of Two Terms was the one that best suited the experimental data for all drying air temperatures. The increase in the temperature of the drying air caused greater volumetric contraction of the moringa grains, which affected the oil extraction yield, resulting in lower efficiency of the mechanical press.Moringa oleifera Lam. é uma planta resistente à seca e capaz de sobreviver em solos pobres, obtendo até três colheitas por ano. Assim, o objetivo deste trabalho quantitativo foi estudar o comportamento durante o processo de secagem laboratorial, nas temperaturas do ar de 40 ºC, 55 ºC e 70 ºC, aplicando modelos matemáticos aos dados experimentais, selecionando o melhor modelo de acordo com as curvas cinéticas de secagem, bem como avaliar o efeito desse fenômeno na eficiência da extração mecânica de óleo. A secagem artificial foi realizada para uma massa constante de grãos, usando um secador mecânico de laboratório em camada fixa com convecção forçada, a uma velocidade do ar de 0,33 m s-1 , com temperaturas de ar de secagem controladas de 40 °C, 55 °C e 70 °C. A análise de regressão não linear foi realizada usando o método Quasi-Newton para ajustar 12 modelos matemáticos aos dados experimentais. O óleo foi extraído usando uma prensa mecânica do tipo expeller. O rendimento e a eficiência da prensa foram calculados a partir da diferença no conteúdo lipídico obtido pela extração química inicial do grão e do resíduo da torta. A Equação Exponencial de Dois Termos foi a que melhor se adequou aos dados experimentais para todas as temperaturas do ar de secagem. O aumento da temperatura do ar de secagem causou maior contração volumétrica dos grãos de moringa, o que afetou o rendimento da extração de óleo, resultando em menor eficiência da prensa mecânica.CDRR Editors2021-07-07T18:46:51Z2021-07-07T18:46:51Z2020-06info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfARAÚJO, B. L. O. et al. Efficiency of mechanical extraction of Moringa oleifera according to different grain drying conditions. Research, Society and Development, Vargem Grande Paulista, v. 9, n. 7, p. e937975133, 2020. DOI: 10.33448/rsd-v9i7.5133.http://repositorio.ufla.br/jspui/handle/1/46685Research, Society and Developmentreponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessAraújo, Bárbara Lemes OuteiroAndrade, Ednilton Tavares deNolasco, Kariny Carvalho VieiraCastro, Rafael PeronCastro Neto, Pedroeng2021-07-07T18:47:29Zoai:localhost:1/46685Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2021-07-07T18:47:29Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false |
dc.title.none.fl_str_mv |
Efficiency of mechanical extraction of Moringa oleifera according to different grain drying conditions Eficiência da extração mecânica de Moringa oleifera de acordo com diferentes condições de secagem de grãos Eficiencia de la extracción mecánica de Moringa oleifera según diferentes condiciones de secado del grano |
title |
Efficiency of mechanical extraction of Moringa oleifera according to different grain drying conditions |
spellingShingle |
Efficiency of mechanical extraction of Moringa oleifera according to different grain drying conditions Araújo, Bárbara Lemes Outeiro Moringa - Processamento Moringa - Secagem Produtos agrícolas Óleo - Rendimento Moringa - Processing Moringa - Drying Agricultural products Oil yield |
title_short |
Efficiency of mechanical extraction of Moringa oleifera according to different grain drying conditions |
title_full |
Efficiency of mechanical extraction of Moringa oleifera according to different grain drying conditions |
title_fullStr |
Efficiency of mechanical extraction of Moringa oleifera according to different grain drying conditions |
title_full_unstemmed |
Efficiency of mechanical extraction of Moringa oleifera according to different grain drying conditions |
title_sort |
Efficiency of mechanical extraction of Moringa oleifera according to different grain drying conditions |
author |
Araújo, Bárbara Lemes Outeiro |
author_facet |
Araújo, Bárbara Lemes Outeiro Andrade, Ednilton Tavares de Nolasco, Kariny Carvalho Vieira Castro, Rafael Peron Castro Neto, Pedro |
author_role |
author |
author2 |
Andrade, Ednilton Tavares de Nolasco, Kariny Carvalho Vieira Castro, Rafael Peron Castro Neto, Pedro |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Araújo, Bárbara Lemes Outeiro Andrade, Ednilton Tavares de Nolasco, Kariny Carvalho Vieira Castro, Rafael Peron Castro Neto, Pedro |
dc.subject.por.fl_str_mv |
Moringa - Processamento Moringa - Secagem Produtos agrícolas Óleo - Rendimento Moringa - Processing Moringa - Drying Agricultural products Oil yield |
topic |
Moringa - Processamento Moringa - Secagem Produtos agrícolas Óleo - Rendimento Moringa - Processing Moringa - Drying Agricultural products Oil yield |
description |
Moringa oleifera Lam. is a drought-resistant plant and able to survive in poor soils, obtaining up to three harvests per year. This culture has wide employability in the cosmetics, medicinal, food industry and also as a potential for water purification. Despite its widespread use, there are few studies on its processing. Thus, the objective of this work was to study the behavior during the drying process, at the drying air temperatures of 40 ºC, 55 ºC and 70 ºC, applying mathematical models to the experimental data, thus selecting the best model according to the kinetics curves of drying, as well as evaluating the effect of this phenomenon on the efficiency of mechanical oil extraction. Pre-dried Moringa oleifera Lam. grains from the city of Barreirinhas (MA) were used, the second semester of 2018 and the experiment conducted at the Agricultural Engineering Department of the Federal University of Lavras (MG). Artificial drying was carried out to a constant grain mass, using a mechanical laboratory dryer in a fixed layer with forced convection, at an air speed of 0.33 ms-1, with controlled drying air temperatures of 40 °C, 55 °C, and 70 °C. Non-linear regression analysis was performed using the Quasi-Newton method to adjust 11 mathematical models to experimental data. The oil was extracted using an expeller-type mechanical press. The press yield and efficiency were calculated from the difference in lipid content obtained by the initial chemical extraction of the grain and residual of the pie. The Exponential Equation of Two Terms was the one that best suited the experimental data for all drying air temperatures. The increase in the temperature of the drying air caused greater volumetric contraction of the moringa grains, which affected the oil extraction yield, resulting in lower efficiency of the mechanical press. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-06 2021-07-07T18:46:51Z 2021-07-07T18:46:51Z |
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 |
ARAÚJO, B. L. O. et al. Efficiency of mechanical extraction of Moringa oleifera according to different grain drying conditions. Research, Society and Development, Vargem Grande Paulista, v. 9, n. 7, p. e937975133, 2020. DOI: 10.33448/rsd-v9i7.5133. http://repositorio.ufla.br/jspui/handle/1/46685 |
identifier_str_mv |
ARAÚJO, B. L. O. et al. Efficiency of mechanical extraction of Moringa oleifera according to different grain drying conditions. Research, Society and Development, Vargem Grande Paulista, v. 9, n. 7, p. e937975133, 2020. DOI: 10.33448/rsd-v9i7.5133. |
url |
http://repositorio.ufla.br/jspui/handle/1/46685 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by/4.0/ |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
CDRR Editors |
publisher.none.fl_str_mv |
CDRR Editors |
dc.source.none.fl_str_mv |
Research, Society and Development reponame:Repositório Institucional da UFLA instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
Repositório Institucional da UFLA |
collection |
Repositório Institucional da UFLA |
repository.name.fl_str_mv |
Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
nivaldo@ufla.br || repositorio.biblioteca@ufla.br |
_version_ |
1807835069247651840 |