Solar drying of residue from Brazil nut processing
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Journal of Food Technology |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1981-67232021000100450 |
Resumo: | Abstract Brazil nuts are often used for direct consumption or in the preparation process of water-soluble extract. After obtaining the water-soluble extract, a large amount of Brazil nut residues with good sensory characteristics are generated. Thus, this study aimed to dry Brazil nut processing residues in layers with different thicknesses in a direct solar dryer as well as by direct exposure to the sun, in order to fit different mathematical models to the experimental data of drying kinetics, and calculate the drying rates and effective diffusivity. The drying procedures began at 9 a.m. on a concrete base, for samples dried by direct exposure to the sun, and in a solar dryer constructed with expanded polystyrene foam zinc plated and a glass cover. The mass loss of the samples was monitored by weighing at regular times until the hygroscopic equilibrium was obtained. The direct solar dryer had temperatures about 80% higher than those recorded in the open environmental air temperature. Drying rates were higher in dehydrations performed in the solar dryer compared to the drying by exposure to the sun. The Midilli model was selected as the most adequate for predicting the drying of the samples under all experimental conditions, showing coefficients of determination above 0.99. The effective diffusion coefficients of moisture were higher in samples dehydrated in the solar dryer when compared to those dried by exposure to the sun. Regarding the research conducted under the experimental conditions of this study, the performance of the solar dryer to dry Brazil nut processing residues was satisfactory. |
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Brazilian Journal of Food Technology |
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Solar drying of residue from Brazil nut processingBertholletia excelsa H.B.K.Agro-industrial residuesSolar dryerDrying rateMathematical modelingEffective diffusivityAbstract Brazil nuts are often used for direct consumption or in the preparation process of water-soluble extract. After obtaining the water-soluble extract, a large amount of Brazil nut residues with good sensory characteristics are generated. Thus, this study aimed to dry Brazil nut processing residues in layers with different thicknesses in a direct solar dryer as well as by direct exposure to the sun, in order to fit different mathematical models to the experimental data of drying kinetics, and calculate the drying rates and effective diffusivity. The drying procedures began at 9 a.m. on a concrete base, for samples dried by direct exposure to the sun, and in a solar dryer constructed with expanded polystyrene foam zinc plated and a glass cover. The mass loss of the samples was monitored by weighing at regular times until the hygroscopic equilibrium was obtained. The direct solar dryer had temperatures about 80% higher than those recorded in the open environmental air temperature. Drying rates were higher in dehydrations performed in the solar dryer compared to the drying by exposure to the sun. The Midilli model was selected as the most adequate for predicting the drying of the samples under all experimental conditions, showing coefficients of determination above 0.99. The effective diffusion coefficients of moisture were higher in samples dehydrated in the solar dryer when compared to those dried by exposure to the sun. Regarding the research conducted under the experimental conditions of this study, the performance of the solar dryer to dry Brazil nut processing residues was satisfactory.Instituto de Tecnologia de Alimentos - ITAL2021-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1981-67232021000100450Brazilian Journal of Food Technology v.24 2021reponame:Brazilian Journal of Food Technologyinstname:Instituto de Tecnologia de Alimentos (ITAL)instacron:ITAL10.1590/1981-6723.29720info:eu-repo/semantics/openAccessNascimento,Ceila Juvino doOliveira,Maria Helena da SilvaSantos,Dyego da CostaLima,Thalis Leandro Bezerra deLeite,Daniela Dantas de FariasFerreira,João Paulo de LimaFigueirêdo,Rossana Maria Feitosa deFeitosa,João Paulo CasteloLara,Emerson Zambranoeng2021-08-11T00:00:00Zoai:scielo:S1981-67232021000100450Revistahttp://bjft.ital.sp.gov.br/https://old.scielo.br/oai/scielo-oai.phpbjftsec@ital.sp.gov.br||bjftsec@ital.sp.gov.br1981-67231516-7275opendoar:2021-08-11T00:00Brazilian Journal of Food Technology - Instituto de Tecnologia de Alimentos (ITAL)false |
dc.title.none.fl_str_mv |
Solar drying of residue from Brazil nut processing |
title |
Solar drying of residue from Brazil nut processing |
spellingShingle |
Solar drying of residue from Brazil nut processing Nascimento,Ceila Juvino do Bertholletia excelsa H.B.K. Agro-industrial residues Solar dryer Drying rate Mathematical modeling Effective diffusivity |
title_short |
Solar drying of residue from Brazil nut processing |
title_full |
Solar drying of residue from Brazil nut processing |
title_fullStr |
Solar drying of residue from Brazil nut processing |
title_full_unstemmed |
Solar drying of residue from Brazil nut processing |
title_sort |
Solar drying of residue from Brazil nut processing |
author |
Nascimento,Ceila Juvino do |
author_facet |
Nascimento,Ceila Juvino do Oliveira,Maria Helena da Silva Santos,Dyego da Costa Lima,Thalis Leandro Bezerra de Leite,Daniela Dantas de Farias Ferreira,João Paulo de Lima Figueirêdo,Rossana Maria Feitosa de Feitosa,João Paulo Castelo Lara,Emerson Zambrano |
author_role |
author |
author2 |
Oliveira,Maria Helena da Silva Santos,Dyego da Costa Lima,Thalis Leandro Bezerra de Leite,Daniela Dantas de Farias Ferreira,João Paulo de Lima Figueirêdo,Rossana Maria Feitosa de Feitosa,João Paulo Castelo Lara,Emerson Zambrano |
author2_role |
author author author author author author author author |
dc.contributor.author.fl_str_mv |
Nascimento,Ceila Juvino do Oliveira,Maria Helena da Silva Santos,Dyego da Costa Lima,Thalis Leandro Bezerra de Leite,Daniela Dantas de Farias Ferreira,João Paulo de Lima Figueirêdo,Rossana Maria Feitosa de Feitosa,João Paulo Castelo Lara,Emerson Zambrano |
dc.subject.por.fl_str_mv |
Bertholletia excelsa H.B.K. Agro-industrial residues Solar dryer Drying rate Mathematical modeling Effective diffusivity |
topic |
Bertholletia excelsa H.B.K. Agro-industrial residues Solar dryer Drying rate Mathematical modeling Effective diffusivity |
description |
Abstract Brazil nuts are often used for direct consumption or in the preparation process of water-soluble extract. After obtaining the water-soluble extract, a large amount of Brazil nut residues with good sensory characteristics are generated. Thus, this study aimed to dry Brazil nut processing residues in layers with different thicknesses in a direct solar dryer as well as by direct exposure to the sun, in order to fit different mathematical models to the experimental data of drying kinetics, and calculate the drying rates and effective diffusivity. The drying procedures began at 9 a.m. on a concrete base, for samples dried by direct exposure to the sun, and in a solar dryer constructed with expanded polystyrene foam zinc plated and a glass cover. The mass loss of the samples was monitored by weighing at regular times until the hygroscopic equilibrium was obtained. The direct solar dryer had temperatures about 80% higher than those recorded in the open environmental air temperature. Drying rates were higher in dehydrations performed in the solar dryer compared to the drying by exposure to the sun. The Midilli model was selected as the most adequate for predicting the drying of the samples under all experimental conditions, showing coefficients of determination above 0.99. The effective diffusion coefficients of moisture were higher in samples dehydrated in the solar dryer when compared to those dried by exposure to the sun. Regarding the research conducted under the experimental conditions of this study, the performance of the solar dryer to dry Brazil nut processing residues was satisfactory. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1981-67232021000100450 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1981-67232021000100450 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1981-6723.29720 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Instituto de Tecnologia de Alimentos - ITAL |
publisher.none.fl_str_mv |
Instituto de Tecnologia de Alimentos - ITAL |
dc.source.none.fl_str_mv |
Brazilian Journal of Food Technology v.24 2021 reponame:Brazilian Journal of Food Technology instname:Instituto de Tecnologia de Alimentos (ITAL) instacron:ITAL |
instname_str |
Instituto de Tecnologia de Alimentos (ITAL) |
instacron_str |
ITAL |
institution |
ITAL |
reponame_str |
Brazilian Journal of Food Technology |
collection |
Brazilian Journal of Food Technology |
repository.name.fl_str_mv |
Brazilian Journal of Food Technology - Instituto de Tecnologia de Alimentos (ITAL) |
repository.mail.fl_str_mv |
bjftsec@ital.sp.gov.br||bjftsec@ital.sp.gov.br |
_version_ |
1752128702696652800 |