Study of a solar energy drying system—Energy savings and effect in dried food quality

Detalhes bibliográficos
Autor(a) principal: Pereira, Carlos
Data de Publicação: 2022
Outros Autores: Tavares, A.P., Cardão, P., Castro, A., Ferreira Silva, Maria Elisabete, Ferreira, D.W., Lopes, S., Brás, I.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.19/7317
Resumo: It is estimated that in Portugal per year, 132 kg/person of food is wasted due to imperfections in weight, shape and due to their perishability, resulting in foods that cannot be marketed. Solar drying can be used to extend food life. However, it usually does not meet the current productivity and quality requirements of the dried product. Solar energy is renewable, very available in Portugal, which can make an important contribution to reducing the specific energy consumption and carbon footprint intensity associated with drying. This work aims to optimize the drying process using a solar dryer with electric support. The conditions of temperature and humidity in the dryer and their influence on the physical and chemical properties of blueberries and raspberries were studied, namely the ash, protein, fat, sugars, total phenolic compounds content and antioxidant capacity. It was concluded that the blueberries and raspberries, after drying underwent slight changes in some chemical parameters, namely the reduction of fats and phenolic compounds. The results of the drying tests showed a strong dependence on atmospheric conditions. Under the most favorable conditions, it was possible to record reductions in electricity consumption of 35%.
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spelling Study of a solar energy drying system—Energy savings and effect in dried food qualityCircular economyFood dryingFood wasteRenewable energySolar dryerSolar energyIt is estimated that in Portugal per year, 132 kg/person of food is wasted due to imperfections in weight, shape and due to their perishability, resulting in foods that cannot be marketed. Solar drying can be used to extend food life. However, it usually does not meet the current productivity and quality requirements of the dried product. Solar energy is renewable, very available in Portugal, which can make an important contribution to reducing the specific energy consumption and carbon footprint intensity associated with drying. This work aims to optimize the drying process using a solar dryer with electric support. The conditions of temperature and humidity in the dryer and their influence on the physical and chemical properties of blueberries and raspberries were studied, namely the ash, protein, fat, sugars, total phenolic compounds content and antioxidant capacity. It was concluded that the blueberries and raspberries, after drying underwent slight changes in some chemical parameters, namely the reduction of fats and phenolic compounds. The results of the drying tests showed a strong dependence on atmospheric conditions. Under the most favorable conditions, it was possible to record reductions in electricity consumption of 35%.ElsevierRepositório Científico do Instituto Politécnico de ViseuPereira, CarlosTavares, A.P.Cardão, P.Castro, A.Ferreira Silva, Maria ElisabeteFerreira, D.W.Lopes, S.Brás, I.2022-08-08T08:00:20Z20222022-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.19/7317engCatorze, C., Tavares, A. P., Cardão, P., Castro, A., Silva, M. E., Ferreira, D. W., Lopes, S., & Brás, I. (2022). Study of a solar energy drying system—Energy savings and effect in dried food quality. Energy Reports, 8, 392–398. https://doi.org/10.1016/j.egyr.2022.01.0702352-484710.1016/j.egyr.2022.01.070info: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:RCAAP2023-01-16T15:29:28Zoai:repositorio.ipv.pt:10400.19/7317Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T16:45:03.852519Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Study of a solar energy drying system—Energy savings and effect in dried food quality
title Study of a solar energy drying system—Energy savings and effect in dried food quality
spellingShingle Study of a solar energy drying system—Energy savings and effect in dried food quality
Pereira, Carlos
Circular economy
Food drying
Food waste
Renewable energy
Solar dryer
Solar energy
title_short Study of a solar energy drying system—Energy savings and effect in dried food quality
title_full Study of a solar energy drying system—Energy savings and effect in dried food quality
title_fullStr Study of a solar energy drying system—Energy savings and effect in dried food quality
title_full_unstemmed Study of a solar energy drying system—Energy savings and effect in dried food quality
title_sort Study of a solar energy drying system—Energy savings and effect in dried food quality
author Pereira, Carlos
author_facet Pereira, Carlos
Tavares, A.P.
Cardão, P.
Castro, A.
Ferreira Silva, Maria Elisabete
Ferreira, D.W.
Lopes, S.
Brás, I.
author_role author
author2 Tavares, A.P.
Cardão, P.
Castro, A.
Ferreira Silva, Maria Elisabete
Ferreira, D.W.
Lopes, S.
Brás, I.
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Repositório Científico do Instituto Politécnico de Viseu
dc.contributor.author.fl_str_mv Pereira, Carlos
Tavares, A.P.
Cardão, P.
Castro, A.
Ferreira Silva, Maria Elisabete
Ferreira, D.W.
Lopes, S.
Brás, I.
dc.subject.por.fl_str_mv Circular economy
Food drying
Food waste
Renewable energy
Solar dryer
Solar energy
topic Circular economy
Food drying
Food waste
Renewable energy
Solar dryer
Solar energy
description It is estimated that in Portugal per year, 132 kg/person of food is wasted due to imperfections in weight, shape and due to their perishability, resulting in foods that cannot be marketed. Solar drying can be used to extend food life. However, it usually does not meet the current productivity and quality requirements of the dried product. Solar energy is renewable, very available in Portugal, which can make an important contribution to reducing the specific energy consumption and carbon footprint intensity associated with drying. This work aims to optimize the drying process using a solar dryer with electric support. The conditions of temperature and humidity in the dryer and their influence on the physical and chemical properties of blueberries and raspberries were studied, namely the ash, protein, fat, sugars, total phenolic compounds content and antioxidant capacity. It was concluded that the blueberries and raspberries, after drying underwent slight changes in some chemical parameters, namely the reduction of fats and phenolic compounds. The results of the drying tests showed a strong dependence on atmospheric conditions. Under the most favorable conditions, it was possible to record reductions in electricity consumption of 35%.
publishDate 2022
dc.date.none.fl_str_mv 2022-08-08T08:00:20Z
2022
2022-01-01T00:00:00Z
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/10400.19/7317
url http://hdl.handle.net/10400.19/7317
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Catorze, C., Tavares, A. P., Cardão, P., Castro, A., Silva, M. E., Ferreira, D. W., Lopes, S., & Brás, I. (2022). Study of a solar energy drying system—Energy savings and effect in dried food quality. Energy Reports, 8, 392–398. https://doi.org/10.1016/j.egyr.2022.01.070
2352-4847
10.1016/j.egyr.2022.01.070
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 Elsevier
publisher.none.fl_str_mv Elsevier
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
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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