Comparison between monopolar and bipolar microsecond range pulsed electric fields in enhancement of apple juice extraction
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.21/5166 |
Resumo: | The effect of monopolar and bipolar shaped pulses in additional yield of apple juice extraction is evaluated. The applied electric field strength, pulsewidth, and number of pulses are assessed for both pulse types, and divergences are analyzed. Variation of electric field strength is ranged from 100 to 1300 V/cm, pulsewidth from 20 to 300 mu s, and the number of pulses from 10 to 200, at a frequency of 200 Hz. Two pulse trains separated by 1 s are applied to apple cubes. Results are plotted against reference untreated samples for all assays. Specific energy consumption is calculated for each experiment as well as qualitative indicators for apple juice of total soluble dry matter and absorbance at 390-nm wavelength. Bipolar pulses demonstrated higher efficiency, and specific energetic consumption has a threshold where higher inputs of energy do not result in higher juice extraction when electric field variation is applied. Total soluble dry matter and absorbance results do not illustrate significant differences between application of monopolar and bipolar pulses, but all values are inside the limits proposed for apple juice intended for human consumption. |
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Comparison between monopolar and bipolar microsecond range pulsed electric fields in enhancement of apple juice extractionBipolar PulsesJuice ExtractionMonopolar PulsesPulsed Electric Fields (PEFs)Cell-membrane electropermeabilizationRectangular pulsesLiquid foodsElectrochemotheraphyElectroporationInactivationExpressionQualityTissuesThe effect of monopolar and bipolar shaped pulses in additional yield of apple juice extraction is evaluated. The applied electric field strength, pulsewidth, and number of pulses are assessed for both pulse types, and divergences are analyzed. Variation of electric field strength is ranged from 100 to 1300 V/cm, pulsewidth from 20 to 300 mu s, and the number of pulses from 10 to 200, at a frequency of 200 Hz. Two pulse trains separated by 1 s are applied to apple cubes. Results are plotted against reference untreated samples for all assays. Specific energy consumption is calculated for each experiment as well as qualitative indicators for apple juice of total soluble dry matter and absorbance at 390-nm wavelength. Bipolar pulses demonstrated higher efficiency, and specific energetic consumption has a threshold where higher inputs of energy do not result in higher juice extraction when electric field variation is applied. Total soluble dry matter and absorbance results do not illustrate significant differences between application of monopolar and bipolar pulses, but all values are inside the limits proposed for apple juice intended for human consumption.IEEERCIPLBrito, Paula S.Canacsinh, HirenMendes, João PauloLuis RedondoPereira, Marco Teotónio2015-09-11T08:38:45Z2012-102012-10-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfapplication/pdfhttp://hdl.handle.net/10400.21/5166engBRITO, P. S.; [et al] – Comparison between monopolar and bipolar microsecond range pulsed electric fields in enhancement of apple juice extraction. IEEE Transactions on Plasma Science. ISSN: 0093-3813. Vol. 40, nr. 10 (2012), pp. 2348-23540093-3813metadata only accessinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-08-03T09:48:11ZPortal AgregadorONG |
dc.title.none.fl_str_mv |
Comparison between monopolar and bipolar microsecond range pulsed electric fields in enhancement of apple juice extraction |
title |
Comparison between monopolar and bipolar microsecond range pulsed electric fields in enhancement of apple juice extraction |
spellingShingle |
Comparison between monopolar and bipolar microsecond range pulsed electric fields in enhancement of apple juice extraction Brito, Paula S. Bipolar Pulses Juice Extraction Monopolar Pulses Pulsed Electric Fields (PEFs) Cell-membrane electropermeabilization Rectangular pulses Liquid foods Electrochemotheraphy Electroporation Inactivation Expression Quality Tissues |
title_short |
Comparison between monopolar and bipolar microsecond range pulsed electric fields in enhancement of apple juice extraction |
title_full |
Comparison between monopolar and bipolar microsecond range pulsed electric fields in enhancement of apple juice extraction |
title_fullStr |
Comparison between monopolar and bipolar microsecond range pulsed electric fields in enhancement of apple juice extraction |
title_full_unstemmed |
Comparison between monopolar and bipolar microsecond range pulsed electric fields in enhancement of apple juice extraction |
title_sort |
Comparison between monopolar and bipolar microsecond range pulsed electric fields in enhancement of apple juice extraction |
author |
Brito, Paula S. |
author_facet |
Brito, Paula S. Canacsinh, Hiren Mendes, João Paulo Luis Redondo Pereira, Marco Teotónio |
author_role |
author |
author2 |
Canacsinh, Hiren Mendes, João Paulo Luis Redondo Pereira, Marco Teotónio |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
RCIPL |
dc.contributor.author.fl_str_mv |
Brito, Paula S. Canacsinh, Hiren Mendes, João Paulo Luis Redondo Pereira, Marco Teotónio |
dc.subject.por.fl_str_mv |
Bipolar Pulses Juice Extraction Monopolar Pulses Pulsed Electric Fields (PEFs) Cell-membrane electropermeabilization Rectangular pulses Liquid foods Electrochemotheraphy Electroporation Inactivation Expression Quality Tissues |
topic |
Bipolar Pulses Juice Extraction Monopolar Pulses Pulsed Electric Fields (PEFs) Cell-membrane electropermeabilization Rectangular pulses Liquid foods Electrochemotheraphy Electroporation Inactivation Expression Quality Tissues |
description |
The effect of monopolar and bipolar shaped pulses in additional yield of apple juice extraction is evaluated. The applied electric field strength, pulsewidth, and number of pulses are assessed for both pulse types, and divergences are analyzed. Variation of electric field strength is ranged from 100 to 1300 V/cm, pulsewidth from 20 to 300 mu s, and the number of pulses from 10 to 200, at a frequency of 200 Hz. Two pulse trains separated by 1 s are applied to apple cubes. Results are plotted against reference untreated samples for all assays. Specific energy consumption is calculated for each experiment as well as qualitative indicators for apple juice of total soluble dry matter and absorbance at 390-nm wavelength. Bipolar pulses demonstrated higher efficiency, and specific energetic consumption has a threshold where higher inputs of energy do not result in higher juice extraction when electric field variation is applied. Total soluble dry matter and absorbance results do not illustrate significant differences between application of monopolar and bipolar pulses, but all values are inside the limits proposed for apple juice intended for human consumption. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-10 2012-10-01T00:00:00Z 2015-09-11T08:38:45Z |
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://hdl.handle.net/10400.21/5166 |
url |
http://hdl.handle.net/10400.21/5166 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
BRITO, P. S.; [et al] – Comparison between monopolar and bipolar microsecond range pulsed electric fields in enhancement of apple juice extraction. IEEE Transactions on Plasma Science. ISSN: 0093-3813. Vol. 40, nr. 10 (2012), pp. 2348-2354 0093-3813 |
dc.rights.driver.fl_str_mv |
metadata only access info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
metadata only access |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
IEEE |
publisher.none.fl_str_mv |
IEEE |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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