Effects of time variable water deficit, defoliation and crop load reduction on the juice and wine composition of Vitis vinifera L. cv. Solaris, analysed by FT IR Spectroscopy and 1 H NMR Spectroscopy

Detalhes bibliográficos
Autor(a) principal: Nittnaus, Andreas Paul
Data de Publicação: 2019
Tipo de documento: Dissertação
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.5/25405
Resumo: Vinifera Euromaster - European Master in Viticulture and Oenology Engineering / Instituto Superior de Agronomia. Universidade de Lisboa / University of Copenhagen
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spelling Effects of time variable water deficit, defoliation and crop load reduction on the juice and wine composition of Vitis vinifera L. cv. Solaris, analysed by FT IR Spectroscopy and 1 H NMR Spectroscopygrapevinewater stressdefoliationcrop thinning1H-NMRVinifera Euromaster - European Master in Viticulture and Oenology Engineering / Instituto Superior de Agronomia. Universidade de Lisboa / University of CopenhagenWater deficit at different tim es during the phenological cycle was induced in pot grown Vitis vinifera L. cv. Solaris while severe de fo liation and severe crop load reduction was carried out in field grown Solaris plants. Juice and wine samples were obtained by all treatment groups and me asured by Fourier Transform Infrared (FT IR) Spectroscopy and Proton Nuclear Magnetic Resonance 1 H N MR Spectroscopy. Chemometric data analysis was performed by PCA on a variety of different data sets. Water stress timing did not alter the composition of juice and wine in Solaris compared to an irrigated control group, but pruning type showed an influenc e on composition S ingle cane pruned vines show ed a tendency to higher values in most examined parameters when compared to double cane vines. A clear sampl e distribution was visible among the field groups. Crop thinning proved to be a reliable practice to in crease sugar content and ripeness parameters while defoliation showed a decreasing effect on sugar accumulation and ripeness and an increasing effect on tartaric acid. 1 H NMR was found to be a useful tool to differentiate between the samples of the two e xp eriments in both juice and wine and metabolites responsible for this sample distribution could clearly be identified by PCA. NMR based metabolomics are c oncluded to be a promising technique for future wine research.s.n.Ricardo da Silva, Jorge ManuelToldam-Andersen, Torben BoRepositório da Universidade de LisboaNittnaus, Andreas Paul2022-09-07T09:58:48Z20192019-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://hdl.handle.net/10400.5/25405TID:203083601engNittnaus, A.P. - Effects of time variable water deficit, defoliation and crop load reduction on the juice and wine composition of Vitis vinifera L. cv. Solaris, analysed by FT IR Spectroscopy and 1 H NMR Spectroscopy. Lisboa: ISA, 2019, 106 p.info: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:RCAAP2023-12-17T01:31:31Zoai:www.repository.utl.pt:10400.5/25405Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T17:09:17.207707Repositório 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 Effects of time variable water deficit, defoliation and crop load reduction on the juice and wine composition of Vitis vinifera L. cv. Solaris, analysed by FT IR Spectroscopy and 1 H NMR Spectroscopy
title Effects of time variable water deficit, defoliation and crop load reduction on the juice and wine composition of Vitis vinifera L. cv. Solaris, analysed by FT IR Spectroscopy and 1 H NMR Spectroscopy
spellingShingle Effects of time variable water deficit, defoliation and crop load reduction on the juice and wine composition of Vitis vinifera L. cv. Solaris, analysed by FT IR Spectroscopy and 1 H NMR Spectroscopy
Nittnaus, Andreas Paul
grapevine
water stress
defoliation
crop thinning
1H-NMR
title_short Effects of time variable water deficit, defoliation and crop load reduction on the juice and wine composition of Vitis vinifera L. cv. Solaris, analysed by FT IR Spectroscopy and 1 H NMR Spectroscopy
title_full Effects of time variable water deficit, defoliation and crop load reduction on the juice and wine composition of Vitis vinifera L. cv. Solaris, analysed by FT IR Spectroscopy and 1 H NMR Spectroscopy
title_fullStr Effects of time variable water deficit, defoliation and crop load reduction on the juice and wine composition of Vitis vinifera L. cv. Solaris, analysed by FT IR Spectroscopy and 1 H NMR Spectroscopy
title_full_unstemmed Effects of time variable water deficit, defoliation and crop load reduction on the juice and wine composition of Vitis vinifera L. cv. Solaris, analysed by FT IR Spectroscopy and 1 H NMR Spectroscopy
title_sort Effects of time variable water deficit, defoliation and crop load reduction on the juice and wine composition of Vitis vinifera L. cv. Solaris, analysed by FT IR Spectroscopy and 1 H NMR Spectroscopy
author Nittnaus, Andreas Paul
author_facet Nittnaus, Andreas Paul
author_role author
dc.contributor.none.fl_str_mv Ricardo da Silva, Jorge Manuel
Toldam-Andersen, Torben Bo
Repositório da Universidade de Lisboa
dc.contributor.author.fl_str_mv Nittnaus, Andreas Paul
dc.subject.por.fl_str_mv grapevine
water stress
defoliation
crop thinning
1H-NMR
topic grapevine
water stress
defoliation
crop thinning
1H-NMR
description Vinifera Euromaster - European Master in Viticulture and Oenology Engineering / Instituto Superior de Agronomia. Universidade de Lisboa / University of Copenhagen
publishDate 2019
dc.date.none.fl_str_mv 2019
2019-01-01T00:00:00Z
2022-09-07T09:58:48Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.5/25405
TID:203083601
url http://hdl.handle.net/10400.5/25405
identifier_str_mv TID:203083601
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Nittnaus, A.P. - Effects of time variable water deficit, defoliation and crop load reduction on the juice and wine composition of Vitis vinifera L. cv. Solaris, analysed by FT IR Spectroscopy and 1 H NMR Spectroscopy. Lisboa: ISA, 2019, 106 p.
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 s.n.
publisher.none.fl_str_mv s.n.
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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