Design and optimization of food processing conditions
Autor(a) principal: | |
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Data de Publicação: | 1996 |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.14/6257 |
Resumo: | The main research objectives of the group are the design and optimization of food processing conditions. Most of the work already developed is on the use of mathematical modeling of transport phenomena and quantification of degradation kinetics as two tools to optimize the final quality of thermally processed food products. Recently, we initiated a project with the main goal of studying the effects of freezing and frozen storage on orange and melon juice pectinesterase activity and quality. The main criterion to adequately pasteurize orange juice is a two decimal reduction of the activity of the enzyme. Preliminary experiments with orange and melon juices and previously published work for march white grapefruit pulp indicated that freezing storage is effective in reducing the pectinesterase activity. The final objective is to determine if the freezing storage of these juices, before pasteurization, can offer advantages in terms of the final product quality and total energy consumption. Finally, we have also been developing computer programs to model the heat transfer during the freezing process of solid foods. We have plans to further improve these models in order to have the possibility of predicting the effect of storage medium temperature fluctuations on the product temperature and quality. |
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Design and optimization of food processing conditionsThe main research objectives of the group are the design and optimization of food processing conditions. Most of the work already developed is on the use of mathematical modeling of transport phenomena and quantification of degradation kinetics as two tools to optimize the final quality of thermally processed food products. Recently, we initiated a project with the main goal of studying the effects of freezing and frozen storage on orange and melon juice pectinesterase activity and quality. The main criterion to adequately pasteurize orange juice is a two decimal reduction of the activity of the enzyme. Preliminary experiments with orange and melon juices and previously published work for march white grapefruit pulp indicated that freezing storage is effective in reducing the pectinesterase activity. The final objective is to determine if the freezing storage of these juices, before pasteurization, can offer advantages in terms of the final product quality and total energy consumption. Finally, we have also been developing computer programs to model the heat transfer during the freezing process of solid foods. We have plans to further improve these models in order to have the possibility of predicting the effect of storage medium temperature fluctuations on the product temperature and quality.Veritati - Repositório Institucional da Universidade Católica PortuguesaSilva, C. L. M.2011-10-15T15:41:58Z19961996-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.14/6257engSILVA, C. L. M. - Design and optimization of food processing conditions. In The preservation of frozen food quality and safety throughout the distribution chain, Ancona, Italy, 17-28 September, 1996 - The preservation of frozen food quality and safety throughout the distribution chain: abstracts. p. 1-3info: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:RCAAP2023-07-12T17:10:52ZPortal AgregadorONG |
dc.title.none.fl_str_mv |
Design and optimization of food processing conditions |
title |
Design and optimization of food processing conditions |
spellingShingle |
Design and optimization of food processing conditions Silva, C. L. M. |
title_short |
Design and optimization of food processing conditions |
title_full |
Design and optimization of food processing conditions |
title_fullStr |
Design and optimization of food processing conditions |
title_full_unstemmed |
Design and optimization of food processing conditions |
title_sort |
Design and optimization of food processing conditions |
author |
Silva, C. L. M. |
author_facet |
Silva, C. L. M. |
author_role |
author |
dc.contributor.none.fl_str_mv |
Veritati - Repositório Institucional da Universidade Católica Portuguesa |
dc.contributor.author.fl_str_mv |
Silva, C. L. M. |
description |
The main research objectives of the group are the design and optimization of food processing conditions. Most of the work already developed is on the use of mathematical modeling of transport phenomena and quantification of degradation kinetics as two tools to optimize the final quality of thermally processed food products. Recently, we initiated a project with the main goal of studying the effects of freezing and frozen storage on orange and melon juice pectinesterase activity and quality. The main criterion to adequately pasteurize orange juice is a two decimal reduction of the activity of the enzyme. Preliminary experiments with orange and melon juices and previously published work for march white grapefruit pulp indicated that freezing storage is effective in reducing the pectinesterase activity. The final objective is to determine if the freezing storage of these juices, before pasteurization, can offer advantages in terms of the final product quality and total energy consumption. Finally, we have also been developing computer programs to model the heat transfer during the freezing process of solid foods. We have plans to further improve these models in order to have the possibility of predicting the effect of storage medium temperature fluctuations on the product temperature and quality. |
publishDate |
1996 |
dc.date.none.fl_str_mv |
1996 1996-01-01T00:00:00Z 2011-10-15T15:41:58Z |
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/10400.14/6257 |
url |
http://hdl.handle.net/10400.14/6257 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
SILVA, C. L. M. - Design and optimization of food processing conditions. In The preservation of frozen food quality and safety throughout the distribution chain, Ancona, Italy, 17-28 September, 1996 - The preservation of frozen food quality and safety throughout the distribution chain: abstracts. p. 1-3 |
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.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) |
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1777303119003123712 |