{"id":25141,"date":"2018-03-09T09:16:24","date_gmt":"2018-03-09T09:16:24","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/analisi-bioqua%c2%admica-i-quimiometrica-dels-diferents-factors-implicats-en-el-desenvolupament-del-cor-marro-i-del-llocat-de-la-pera-blanquilla\/"},"modified":"2018-03-09T09:16:24","modified_gmt":"2018-03-09T09:16:24","slug":"analisi-bioqua%c2%admica-i-quimiometrica-dels-diferents-factors-implicats-en-el-desenvolupament-del-cor-marro-i-del-llocat-de-la-pera-blanquilla","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/lleida\/analisi-bioqua%c2%admica-i-quimiometrica-dels-diferents-factors-implicats-en-el-desenvolupament-del-cor-marro-i-del-llocat-de-la-pera-blanquilla\/","title":{"rendered":"An\u00e1lisi bioqu\u00edmica i quimiom\u00e9trica dels diferents factors implicats en el desenvolupament del cor marr\u00f3 i del llocat de la pera blanquilla"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Esther Pinto Pag\u00e9s <\/strong><\/h2>\n<p>El coraz\u00f3n pardo y la descomposici\u00f3n interna son dos importantes alteraciones fisiol\u00f3gicas que aparecen en la pera blanquilla durante su per\u00edodo de conservaci\u00f3n. estos dos des\u00f3rdenes fisiol\u00f3gicos se caracterizan, primero, por un empardecimiento del coraz\u00f3n y, posteriormente, por el de la pulpa. En la descomposici\u00f3n interna este empardecimiento es de tipo h\u00famedo y se extiende r\u00e1pidamente a toda la pulpa. En cambio, en el coraz\u00f3n pardo los tejidos presentan un aspecto seco con grandes y abundantes cavidades en la pulpa.  se desconocen a\u00fan los factores causantes de la aparici\u00f3n de los dos des\u00f3rdenes y los principales mecanismos bioqu\u00edmicos implicados en su desarrollo. El objetivo de esta tesis ha sido conocer estos factores, as\u00ed como caracterizar la v\u00eda o v\u00edas bioqu\u00edmicas implicadas en el desarrollo del coraz\u00f3n pardo y de la descomposici\u00f3n interna en peras blanquilla. Concretamente, se ha estudiado c\u00f3mo inciden en su aparici\u00f3n una alta concentraci\u00f3n de co2 y el grado de madurez a la cosecha. Para cada una de estas condiciones de determin\u00f3 la incidencia y la serveridad de cada aleraci\u00f3n, los productos y las enzimas asociadas con el metabolismo fermentativo y antioxidativo, as\u00ed como el grado deproxidaci\u00f3n de las membranas.Finalmente, se utiliz\u00f3 el an\u00e1lisis multivariante para caracterizar y diferenciar las dos alteraciones en funci\u00f3n de los par\u00e1metros citados. Adem\u00e1s, con las t\u00e9cnicas multivariantes se pretend\u00eda complementar y caracterizar los resultados interpretados bioqu\u00edmicamente.  las dos alteraciones aparecieron en la atm\u00f3sfera controlada (ac) de alto nivel de co2, pero se diferenciaron en el tiempo de aparici\u00f3n. La descomposici\u00f3n interna apreci\u00f3 aproximadamente a los tres meses de conservaci\u00f3n, mientras que el coraz\u00f3n pardo se manifest\u00f3 con posterioridad a esta fecha. Adem\u00e1s, la descomposici\u00f3n interna tambi\u00e9n se present\u00f3 en la atm\u00f3sfera de fr\u00edo normal, pero al final del per\u00edodo de cons<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>An\u00e1lisi bioqu\u00edmica i quimiom\u00e9trica dels diferents factors implicats en el desenvolupament del cor marr\u00f3 i del llocat de la pera blanquilla<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 An\u00e1lisi bioqu\u00edmica i quimiom\u00e9trica dels diferents factors implicats en el desenvolupament del cor marr\u00f3 i del llocat de la pera blanquilla <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Esther Pinto Pag\u00e9s <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Lleida<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 29\/07\/2003<\/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>Christian Larrigaudi\u00e9re<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: miquel Vendrell melich <\/li>\n<li> Torres sanchis m. rosario (vocal)<\/li>\n<li>jordi Graell sarl\u00e9 (vocal)<\/li>\n<li>joan Pons mas (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Esther Pinto Pag\u00e9s El coraz\u00f3n pardo y la descomposici\u00f3n interna son dos importantes alteraciones fisiol\u00f3gicas que aparecen [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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