Pattern recognition of lipase-catalyzed or chemically interesterified fat blends containing n-3 polyunsaturated fatty acids

Detalhes bibliográficos
Autor(a) principal: Pires, Ana Sofia
Data de Publicação: 2008
Outros Autores: Osório, Natália M., Nascimento, Ana Cláudia, Keulen, Frederik, Fonseca, M.Manuela R., Ferreira-Dias, Suzana
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.5/5937
Resumo: Research Paper
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spelling Pattern recognition of lipase-catalyzed or chemically interesterified fat blends containing n-3 polyunsaturated fatty acidsacylglycerol profileinteresterificationpattern recognitionsolid fat contentThermomyces lanuginosa lipaseResearch PaperThe feasibility to discriminate among samples of different fat blends prior and after inorganic or lipasecatalyzed interesterification, via pattern recognition techniques [principal component analysis (PCA) and discriminant analysis (DA)], was investigated. Blends I and II, consisting of mixtures of palm stearin, palm kernel oil and a concentrate of triacylglycerols (TAG) rich in n-3 polyunsaturated fatty acids (EPAX 4510TG or EPAX 2050TG) were used. These blends, prior (64 samples) and after interesterification, catalyzed by an immobilized Thermomyces lanuginosa lipase (Lipozyme TL IM, 54 samples) or by sodium methoxide (10 samples), were characterized by their acylglycerol profiles (25 chromatographic peaks) and solid fat content (SFC) at 10, 20, 30 and 35 7C. PCA on the multivariate data (i) showed that the initial samples were characterized by higher SFC and higher contents of high-melting TAG and (ii) suggested two separate clusters of initial and interesterified samples. DA was performed on the multivariate data to determine which of the 29 variables have discriminative power. When the 124 samples, characterized by their acylglycerols, were grouped into (i) initial and interesterified samples of blends I or II (four groups) or (ii) also by the catalyst used (six groups), 98.4% of the samples were correctly classifiedWileyRepositório da Universidade de LisboaPires, Ana SofiaOsório, Natália M.Nascimento, Ana CláudiaKeulen, FrederikFonseca, M.Manuela R.Ferreira-Dias, Suzana2013-09-04T10:05:19Z20082008-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.5/5937eng"European Journal of Lipid Science and Technology". ISSN 1438-7697. 110(10) (2008) 893-9041438-7697info: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:RCAAP2023-03-06T14:36:48Zoai:www.repository.utl.pt:10400.5/5937Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T16:53:21.104210Repositório 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 Pattern recognition of lipase-catalyzed or chemically interesterified fat blends containing n-3 polyunsaturated fatty acids
title Pattern recognition of lipase-catalyzed or chemically interesterified fat blends containing n-3 polyunsaturated fatty acids
spellingShingle Pattern recognition of lipase-catalyzed or chemically interesterified fat blends containing n-3 polyunsaturated fatty acids
Pires, Ana Sofia
acylglycerol profile
interesterification
pattern recognition
solid fat content
Thermomyces lanuginosa lipase
title_short Pattern recognition of lipase-catalyzed or chemically interesterified fat blends containing n-3 polyunsaturated fatty acids
title_full Pattern recognition of lipase-catalyzed or chemically interesterified fat blends containing n-3 polyunsaturated fatty acids
title_fullStr Pattern recognition of lipase-catalyzed or chemically interesterified fat blends containing n-3 polyunsaturated fatty acids
title_full_unstemmed Pattern recognition of lipase-catalyzed or chemically interesterified fat blends containing n-3 polyunsaturated fatty acids
title_sort Pattern recognition of lipase-catalyzed or chemically interesterified fat blends containing n-3 polyunsaturated fatty acids
author Pires, Ana Sofia
author_facet Pires, Ana Sofia
Osório, Natália M.
Nascimento, Ana Cláudia
Keulen, Frederik
Fonseca, M.Manuela R.
Ferreira-Dias, Suzana
author_role author
author2 Osório, Natália M.
Nascimento, Ana Cláudia
Keulen, Frederik
Fonseca, M.Manuela R.
Ferreira-Dias, Suzana
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Repositório da Universidade de Lisboa
dc.contributor.author.fl_str_mv Pires, Ana Sofia
Osório, Natália M.
Nascimento, Ana Cláudia
Keulen, Frederik
Fonseca, M.Manuela R.
Ferreira-Dias, Suzana
dc.subject.por.fl_str_mv acylglycerol profile
interesterification
pattern recognition
solid fat content
Thermomyces lanuginosa lipase
topic acylglycerol profile
interesterification
pattern recognition
solid fat content
Thermomyces lanuginosa lipase
description Research Paper
publishDate 2008
dc.date.none.fl_str_mv 2008
2008-01-01T00:00:00Z
2013-09-04T10:05:19Z
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/10400.5/5937
url http://hdl.handle.net/10400.5/5937
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv "European Journal of Lipid Science and Technology". ISSN 1438-7697. 110(10) (2008) 893-904
1438-7697
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 Wiley
publisher.none.fl_str_mv Wiley
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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