{"id":75346,"date":"2005-04-07T00:00:00","date_gmt":"2005-04-07T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/estudio-de-pigmentos-y-copigmentos-taninos-en-bayas-de-vitis-vinifera-l-cvs-graciano-tempranillo-y-cabernet-sauvignon-en-fechas-proximas-a-la-maduerz-tecnologica\/"},"modified":"2005-04-07T00:00:00","modified_gmt":"2005-04-07T00:00:00","slug":"estudio-de-pigmentos-y-copigmentos-taninos-en-bayas-de-vitis-vinifera-l-cvs-graciano-tempranillo-y-cabernet-sauvignon-en-fechas-proximas-a-la-maduerz-tecnologica","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/quimica\/estudio-de-pigmentos-y-copigmentos-taninos-en-bayas-de-vitis-vinifera-l-cvs-graciano-tempranillo-y-cabernet-sauvignon-en-fechas-proximas-a-la-maduerz-tecnologica\/","title":{"rendered":"Estudio de pigmentos y copigmentos (taninos) en bayas de vitis vinifera l. cvs. graciano, tempranillo y cabernet sauvignon en fechas proximas a la maduerz tecnologica"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Veronica Nu\u00f1ez Morales <\/strong><\/h2>\n<p>En este trabajo de tesis doctoral se presentan los cambios que se producen en la composici\u00f3n fen\u00f3lica y en el color de los hollejos de uvas vitis vinifera l. Graciano (variedad espa\u00f1ola de peque\u00f1a extensi\u00f3n pero altamente apreciada), tempranillo (variedad espa\u00f1ola por excelencia) y cabernet sauvignon (variedad francesa conocida y cultivada a nivel internacional) en fechas pr\u00f3ximas a la madurez tecnol\u00f3gica de la uva.  Las uvas proced\u00edan de la estaci\u00f3n de viticultura y enolog\u00eda de navarra (evena, olite) y se registraron aproximadamente cada 3 d\u00edas en un periodo comprendido entre 10 d\u00edas antes y 10 d\u00edas despu\u00e9s de la madurez tecnol\u00f3gica de las vendimias del 2000, 2001 y 2002. Se determin\u00f3 el contenido fen\u00f3lico total por m\u00e9todos espectrofotom\u00e9tricos y la composici\u00f3n antoci\u00e1nica mediente hplc\/ dad y hplc\/ esi-ms, as\u00ed como las caracter\u00edsticas crom\u00e1ticas mediante el c\u00e1lculo de \u00edndices colorim\u00e9tricos. adem\u00e1s se desarrollaron dos metodolog\u00edas por hplc fase normal\/ esi-ms y maldi-tof  para determinar la composici\u00f3n monom\u00e9rica y oligom\u00e9rica de los flavan-3-oles de las pepitas.  se aportan nuevos datos sobre la identificaci\u00f3n de compuestos antoci\u00e1nicos y flav\u00e1nicos de la uva en general.  se encuentra que distribuci\u00f3n de las antocianinas en las muestras recogidas en la madurez tecnol\u00f3gica (vendimia) se mantiene en fechas pr\u00f3ximas para cada una de las variedades estudiadas, haciendo posible la caracterizaci\u00f3n varietal independientemente del a\u00f1o de estudio y la fecha de muestreo. la influencia del car\u00e1cter varietal fue mayor en la composici\u00f3n antoci\u00e1nica de los hollejos que en las procianidinas de las pepitas, d\u00f3nde las caracter\u00edsticas del a\u00f1o tienen una mayor importancia. En fechas pr\u00f3ximas a la madurez tecnol\u00f3gica, el contenido fen\u00f3lico total, el contenido en antocianinas y los \u00edndices colorim\u00e9tricos presentaron variaciones m\u00e1s o menos acusadas en funci\u00f3n de la variedad de uva y las condiciones<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Estudio de pigmentos y copigmentos (taninos) en bayas de vitis vinifera l. cvs. graciano, tempranillo y cabernet sauvignon en fechas proximas a la maduerz tecnologica<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Estudio de pigmentos y copigmentos (taninos) en bayas de vitis vinifera l. cvs. graciano, tempranillo y cabernet sauvignon en fechas proximas a la maduerz tecnologica <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Veronica Nu\u00f1ez Morales <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Aut\u00f3noma de Madrid<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 04\/07\/2005<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li> Gomez Cordoves De La Vega Mar\u00eda  Del Carmen<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Francisco javier Lopez andreu <\/li>\n<li>Fernando Calderon fernandez (vocal)<\/li>\n<li>Mar\u00eda  rosario Salinas fernandez (vocal)<\/li>\n<li>esperanza Molla llorente (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Veronica Nu\u00f1ez Morales En este trabajo de tesis doctoral se presentan los cambios que se producen en 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