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Desenvolvimento de metodologias analíticas para queijos. Estudo de caso: queijos da Beira Interior

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Resumo:The main objective of the present work is the development of chemical, physical and sensory methodologies in a food safety laboratory. The first step consisted in the selection of the methodologies to be used, in accordance with existing legislation. Subsequently, characteristic cheeses of the Beira Interior region were tested. Accordingly, it was possible to verify the adequacy of the methodology used as well as to make a brief characterisation of the cheeses and to establish the differences between the three brands under analysis. The results obtained have shown that the methods used were appropriate since they feature a high reproducibility, confirmed by the very low standard deviation values observed. Regarding the trade brands analysed, we can conclude that, when compared, they present very different chemical and physical parameters. The sensory analysis and its relationship to the parameters instrumentally obtained have shown the need to perform this type of tests with a panel of trained tasters, in order to obtain consistent associations. The multivariate analysis of the chemical and sensory parameters allows us to conclude that the three brands of cheeses are quite homogeneous among themselves, since they constitute and belong to the same class.
Autores principais:Moreira, Cláudia Patrícia Martins
Assunto:cheese analytical methodology main composition volatile compounds sensory analysis Beira Interior
Ano:2011
País:Portugal
Tipo de documento:dissertação de mestrado
Tipo de acesso:acesso aberto
Instituição associada:Universidade de Lisboa
Idioma:português
Origem:Repositório da Universidade de Lisboa
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author Moreira, Cláudia Patrícia Martins
author_facet Moreira, Cláudia Patrícia Martins
author_role author
contributor_name_str_mv Martins, Margarida Moldão
Borges, Lígia Maria Calado
Repositório Científico de Acesso Aberto da ULisboa
country_str PT
creators_json_txt [{\"Person.name\":\"Moreira, Cláudia Patrícia Martins\"}]
datacite.contributors.contributor.contributorName.fl_str_mv Martins, Margarida Moldão
Borges, Lígia Maria Calado
Repositório Científico de Acesso Aberto da ULisboa
datacite.creators.creator.creatorName.fl_str_mv Moreira, Cláudia Patrícia Martins
datacite.date.Accepted.fl_str_mv 2011-01-01T00:00:00Z
datacite.date.available.fl_str_mv 2012-03-14T16:44:48Z
datacite.date.embargoed.fl_str_mv 2012-03-14T16:44:48Z
datacite.rights.fl_str_mv http://purl.org/coar/access_right/c_abf2
datacite.subjects.subject.fl_str_mv cheese
analytical methodology
main composition
volatile compounds
sensory analysis
Beira Interior
datacite.titles.title.fl_str_mv Desenvolvimento de metodologias analíticas para queijos. Estudo de caso: queijos da Beira Interior
dc.contributor.none.fl_str_mv Martins, Margarida Moldão
Borges, Lígia Maria Calado
Repositório Científico de Acesso Aberto da ULisboa
dc.creator.none.fl_str_mv Moreira, Cláudia Patrícia Martins
dc.date.Accepted.fl_str_mv 2011-01-01T00:00:00Z
dc.date.available.fl_str_mv 2012-03-14T16:44:48Z
dc.date.embargoed.fl_str_mv 2012-03-14T16:44:48Z
dc.format.none.fl_str_mv application/pdf
dc.identifier.none.fl_str_mv http://hdl.handle.net/10400.5/4065
dc.language.none.fl_str_mv por
dc.publisher.none.fl_str_mv ISA/UTL
dc.rights.none.fl_str_mv http://purl.org/coar/access_right/c_abf2
dc.subject.none.fl_str_mv cheese
analytical methodology
main composition
volatile compounds
sensory analysis
Beira Interior
dc.title.fl_str_mv Desenvolvimento de metodologias analíticas para queijos. Estudo de caso: queijos da Beira Interior
dc.type.none.fl_str_mv http://purl.org/coar/resource_type/c_bdcc
description The main objective of the present work is the development of chemical, physical and sensory methodologies in a food safety laboratory. The first step consisted in the selection of the methodologies to be used, in accordance with existing legislation. Subsequently, characteristic cheeses of the Beira Interior region were tested. Accordingly, it was possible to verify the adequacy of the methodology used as well as to make a brief characterisation of the cheeses and to establish the differences between the three brands under analysis. The results obtained have shown that the methods used were appropriate since they feature a high reproducibility, confirmed by the very low standard deviation values observed. Regarding the trade brands analysed, we can conclude that, when compared, they present very different chemical and physical parameters. The sensory analysis and its relationship to the parameters instrumentally obtained have shown the need to perform this type of tests with a panel of trained tasters, in order to obtain consistent associations. The multivariate analysis of the chemical and sensory parameters allows us to conclude that the three brands of cheeses are quite homogeneous among themselves, since they constitute and belong to the same class.
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eu_rights_str_mv openAccess
format masterThesis
fulltext.url.fl_str_mv https://repositorio.ulisboa.pt/bitstreams/02a50057-00bf-492a-bcf3-94635d585bc4/download
id ul_61b179d098f4ece78e5d5e562ffd5713
identifier.url.fl_str_mv http://hdl.handle.net/10400.5/4065
instacron_str ul
institution Universidade de Lisboa
instname_str Universidade de Lisboa
language por
network_acronym_str ul
network_name_str Repositório da Universidade de Lisboa
oai_identifier_str oai:repositorio.ulisboa.pt:10400.5/4065
organization_str_mv urn:organizationAcronym:ul
person_str_mv Moreira, Cláudia Patrícia Martins
publishDate 2011
publisher.none.fl_str_mv ISA/UTL
reponame_str Repositório da Universidade de Lisboa
repository_id_str urn:repositoryAcronym:ul
service_str_mv urn:repositoryAcronym:ul
spelling porISA/UTLporThe main objective of the present work is the development of chemical, physical and sensory methodologies in a food safety laboratory. The first step consisted in the selection of the methodologies to be used, in accordance with existing legislation. Subsequently, characteristic cheeses of the Beira Interior region were tested. Accordingly, it was possible to verify the adequacy of the methodology used as well as to make a brief characterisation of the cheeses and to establish the differences between the three brands under analysis. The results obtained have shown that the methods used were appropriate since they feature a high reproducibility, confirmed by the very low standard deviation values observed. Regarding the trade brands analysed, we can conclude that, when compared, they present very different chemical and physical parameters. The sensory analysis and its relationship to the parameters instrumentally obtained have shown the need to perform this type of tests with a panel of trained tasters, in order to obtain consistent associations. The multivariate analysis of the chemical and sensory parameters allows us to conclude that the three brands of cheeses are quite homogeneous among themselves, since they constitute and belong to the same class.application/pdfporDesenvolvimento de metodologias analíticas para queijos. Estudo de caso: queijos da Beira InteriorMoreira, Cláudia Patrícia MartinsMartins, Margarida MoldãoBorges, Lígia Maria CaladoHostingInstitutionOrganizationalRepositório Científico de Acesso Aberto da ULisboae-mailmailto:repositorio@reitoria.ulisboa.ptrepositorio@reitoria.ulisboa.pt2012-03-14T16:44:48Z20112011-01-01T00:00:00ZHandlehttp://hdl.handle.net/10400.5/4065http://purl.org/coar/access_right/c_abf2open accesscheeseanalytical methodologymain compositionvolatile compoundssensory analysisBeira Interior1611902 bytesliteraturehttp://purl.org/coar/resource_type/c_bdccmaster thesishttp://purl.org/coar/access_right/c_abf2application/pdffulltexthttps://repositorio.ulisboa.pt/bitstreams/02a50057-00bf-492a-bcf3-94635d585bc4/download184
spellingShingle Desenvolvimento de metodologias analíticas para queijos. Estudo de caso: queijos da Beira Interior
Moreira, Cláudia Patrícia Martins
cheese
analytical methodology
main composition
volatile compounds
sensory analysis
Beira Interior
status SINGLETON
subject.fl_str_mv cheese
analytical methodology
main composition
volatile compounds
sensory analysis
Beira Interior
title Desenvolvimento de metodologias analíticas para queijos. Estudo de caso: queijos da Beira Interior
title_full Desenvolvimento de metodologias analíticas para queijos. Estudo de caso: queijos da Beira Interior
title_fullStr Desenvolvimento de metodologias analíticas para queijos. Estudo de caso: queijos da Beira Interior
title_full_unstemmed Desenvolvimento de metodologias analíticas para queijos. Estudo de caso: queijos da Beira Interior
title_short Desenvolvimento de metodologias analíticas para queijos. Estudo de caso: queijos da Beira Interior
title_sort Desenvolvimento de metodologias analíticas para queijos. Estudo de caso: queijos da Beira Interior
topic cheese
analytical methodology
main composition
volatile compounds
sensory analysis
Beira Interior
topic_facet cheese
analytical methodology
main composition
volatile compounds
sensory analysis
Beira Interior
url http://hdl.handle.net/10400.5/4065
visible 1