Grape phenolic maturity; determination methods and consequences on wine phenolic composition
The objective of this thesis was to study the phenolic maturity of the red grapes, their influence on wine phenolic composition and sensory implications, as well as on the implementation of some winemaking techniques to compensate the lack or excess of grapes maturity. We compared the effectiveness...
| Autor: | |
|---|---|
| Tipo de recurso: | tesis doctoral |
| Estado: | Versión publicada |
| Fecha de publicación: | 2010 |
| País: | España |
| Institución: | Universitat Rovira i virgili (URV) |
| Repositorio: | Repositori Institucional de la Universitat Rovira i Virgili |
| OAI Identifier: | oai:urv.cat:TDX:466 |
| Acceso en línea: | https://hdl.handle.net/20.500.11797/TDX466 http://hdl.handle.net/10803/8687 |
| Access Level: | acceso abierto |
| Palabra clave: | 663/664 - Aliments i nutrició. Enologia. Olis. Greixos 577 - Bioquímica. Biologia molecular. Biofísica |
| id |
ES_3636b074ceb657dcdcb2b428f8397c9e |
|---|---|
| oai_identifier_str |
oai:urv.cat:TDX:466 |
| network_acronym_str |
ES |
| network_name_str |
España |
| repository_id_str |
|
| spelling |
Grape phenolic maturity; determination methods and consequences on wine phenolic compositionKontoudakis, Nikolaos663/664 - Aliments i nutrició. Enologia. Olis. Greixos577 - Bioquímica. Biologia molecular. BiofísicaThe objective of this thesis was to study the phenolic maturity of the red grapes, their influence on wine phenolic composition and sensory implications, as well as on the implementation of some winemaking techniques to compensate the lack or excess of grapes maturity. We compared the effectiveness of three methods to determine the phenolic maturity (Glories, ITV, Cromoenos) and the influence of heterogeneity on the phenolic maturity degree of the grapes at the optimum time of harvest. Once we reached those objectives, we studied the possibility of using unripe grapes harvested during cluster thinning to reduce simultaneously both alcohol content and pH. Finally, we studied the influence of pH on the effectiveness of micro-oxygenation. The results show that the correct measurement of phenolic ripeness is useful to adapt winemaking techniques for obtaining well balanced wines.El objetivo de esta tesis ha sido abordar un estudio sobre la madurez fenólica de las uvas tintas, su influencia sobre la composición fenólica de los vinos y sus implicaciones sensoriales, así como sobre la aplicación de algunos sistemas para compensar la falta o exceso de madurez de las uvas. Se comparó la eficacia de 3 métodos para determinar la madurez fenólica (Glories, ITV, Cromoenos) y la influencia de la heterogeneidad en la madurez fenólica de la uva en el momento óptimo de cosecha. Una vez obtenidos estos objetivos se estudió la posibilidad de aprovechamiento de uva verde procedente de los aclareos para disminuir simultáneamente el grado alcohólico y pH. Finalmente, se estudió la influencia del pH sobre la eficacia de la micro-oxigenación. Los resultados presentan que la medición correcta de la madurez fenólica es útil para adaptar las técnicas de vinificación a las condiciones que permitan obtener vinos equilibrados.Universitat Rovira i Virgili Departament de Bioquímica i BiotecnologiaUniversitat Rovira i Virgili.2010info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisapplication/pdfhttps://hdl.handle.net/20.500.11797/TDX466http://hdl.handle.net/10803/8687urn:isbn:9788469376829reponame:Repositori Institucional de la Universitat Rovira i Virgiliinstname:Universitat Rovira i virgili (URV)Inglésinfo:eu-repo/semantics/openAccessADVERTIMENT. L'accés als continguts d'aquesta tesi doctoral i la seva utilització ha de respectar els drets de la persona autora. Pot ser utilitzada per a consulta o estudi personal, així com en activitats o materials d'investigació i docència en els termes establerts a l'art. 32 del Text Refós de la Llei de Propietat Intel·lectual (RDL 1/1996). Per altres utilitzacions es requereix l'autorització prèvia i expressa de la persona autora. En qualsevol cas, en la utilització dels seus continguts caldrà indicar de forma clara el nom i cognoms de la persona autora i el títol de la tesi doctoral. No s'autoritza la seva reproducció o altres formes d'explotació efectuades amb finalitats de lucre ni la seva comunicació pública des d'un lloc aliè al repositori institucional de la Universitat Rovira i Virgili. Tampoc s'autoritza la presentació del seu contingut en una finestra o marc aliè a aquest repositori (framing). Aquesta reserva de drets afecta tant als continguts de la tesi com als seus resums i índexs.oai:urv.cat:TDX:4662026-06-23T12:42:27Z |
| dc.title.none.fl_str_mv |
Grape phenolic maturity; determination methods and consequences on wine phenolic composition |
| title |
Grape phenolic maturity; determination methods and consequences on wine phenolic composition |
| spellingShingle |
Grape phenolic maturity; determination methods and consequences on wine phenolic composition Kontoudakis, Nikolaos 663/664 - Aliments i nutrició. Enologia. Olis. Greixos 577 - Bioquímica. Biologia molecular. Biofísica |
| title_short |
Grape phenolic maturity; determination methods and consequences on wine phenolic composition |
| title_full |
Grape phenolic maturity; determination methods and consequences on wine phenolic composition |
| title_fullStr |
Grape phenolic maturity; determination methods and consequences on wine phenolic composition |
| title_full_unstemmed |
Grape phenolic maturity; determination methods and consequences on wine phenolic composition |
| title_sort |
Grape phenolic maturity; determination methods and consequences on wine phenolic composition |
| dc.creator.none.fl_str_mv |
Kontoudakis, Nikolaos |
| author |
Kontoudakis, Nikolaos |
| author_facet |
Kontoudakis, Nikolaos |
| author_role |
author |
| dc.contributor.none.fl_str_mv |
Departament de Bioquímica i Biotecnologia Universitat Rovira i Virgili. |
| dc.subject.none.fl_str_mv |
663/664 - Aliments i nutrició. Enologia. Olis. Greixos 577 - Bioquímica. Biologia molecular. Biofísica |
| topic |
663/664 - Aliments i nutrició. Enologia. Olis. Greixos 577 - Bioquímica. Biologia molecular. Biofísica |
| description |
The objective of this thesis was to study the phenolic maturity of the red grapes, their influence on wine phenolic composition and sensory implications, as well as on the implementation of some winemaking techniques to compensate the lack or excess of grapes maturity. We compared the effectiveness of three methods to determine the phenolic maturity (Glories, ITV, Cromoenos) and the influence of heterogeneity on the phenolic maturity degree of the grapes at the optimum time of harvest. Once we reached those objectives, we studied the possibility of using unripe grapes harvested during cluster thinning to reduce simultaneously both alcohol content and pH. Finally, we studied the influence of pH on the effectiveness of micro-oxygenation. The results show that the correct measurement of phenolic ripeness is useful to adapt winemaking techniques for obtaining well balanced wines. |
| publishDate |
2010 |
| dc.date.none.fl_str_mv |
2010 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/doctoralThesis |
| format |
doctoralThesis |
| status_str |
publishedVersion |
| dc.identifier.none.fl_str_mv |
https://hdl.handle.net/20.500.11797/TDX466 http://hdl.handle.net/10803/8687 |
| url |
https://hdl.handle.net/20.500.11797/TDX466 http://hdl.handle.net/10803/8687 |
| dc.language.none.fl_str_mv |
Inglés |
| language_invalid_str_mv |
Inglés |
| dc.rights.none.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 |
Universitat Rovira i Virgili |
| publisher.none.fl_str_mv |
Universitat Rovira i Virgili |
| dc.source.none.fl_str_mv |
urn:isbn:9788469376829 reponame:Repositori Institucional de la Universitat Rovira i Virgili instname:Universitat Rovira i virgili (URV) |
| instname_str |
Universitat Rovira i virgili (URV) |
| reponame_str |
Repositori Institucional de la Universitat Rovira i Virgili |
| collection |
Repositori Institucional de la Universitat Rovira i Virgili |
| repository.name.fl_str_mv |
|
| repository.mail.fl_str_mv |
|
| _version_ |
1869405943655038977 |
| score |
15,301603 |