{"id":42673,"date":"2018-03-09T09:44:39","date_gmt":"2018-03-09T09:44:39","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/efecto-de-la-adicion-de-gelatina-sobre-el-comportamiento-reologico-en-sistemas-lacteos\/"},"modified":"2018-03-09T09:44:39","modified_gmt":"2018-03-09T09:44:39","slug":"efecto-de-la-adicion-de-gelatina-sobre-el-comportamiento-reologico-en-sistemas-lacteos","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-tecnologicas\/efecto-de-la-adicion-de-gelatina-sobre-el-comportamiento-reologico-en-sistemas-lacteos\/","title":{"rendered":"Efecto de la adici\u00f3n de gelatina sobre el comportamiento reol\u00f3gico en sistemas lacteos"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Ana Salvador Alcaraz <\/strong><\/h2>\n<p>La compatibilidad de la gelatina con las prote\u00ednas de la leche hace que su uso pudea estar muy extendido como ingrediente funcional en la preparaci\u00f3n de productos l\u00e1cteos \u00e1cidos gelificados. Se desarrollaron tres m\u00e9todos de elaboraci\u00f3n de geles en funci\u00f3n del proceso de acidificaci\u00f3n. En primer lugar, se utiliz\u00f3 la fermentaci\u00f3n tradicional mediante la adici\u00f3n de un cultivo formado por mezcla de l.Bulgaricus y st.Thermophilus. La \u00e1cidez final alcanzada por estos geles fue de 4,5 y la estructura interna se bas\u00f3 en una red de micelas de case\u00edna. En segundo lugar, se realiz\u00f3 una acidificaci\u00f3n directa con glucono-delta-lactona en fr\u00edo, alcanz\u00e1ndose valores de ph superiores a los anteriores (5,8 y 5,3). La estructura interna de estos geles se bas\u00f3 en una red de gelatina. Por \u00faltimo, se eacidific\u00f3 con glucono-delta-lactona en caliente. La gelificaci\u00f3n de estos geles se debi\u00f3, por una parte, a la formaci\u00f3n de una red de cas\u00ednas favorecida por el calor, seguido por la formaci\u00f3n de la red de gelatina. Los ph finales alcanzados fueron 5.8, 5.3 y 4.8. Se realilzaron ensayos reol\u00f3gicos din\u00e1micos sobre los dos primeros tipos de geles y ensayos mec\u00e1nicos de textura sobre todos ellos, basados en ensayos de penetraci\u00f3n y de comprensi\u00f3n. Las estructuras finales se confirmaron por cryo-sem.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Efecto de la adici\u00f3n de gelatina sobre el comportamiento reol\u00f3gico en sistemas lacteos<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Efecto de la adici\u00f3n de gelatina sobre el comportamiento reol\u00f3gico en sistemas lacteos <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Ana Salvador Alcaraz <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Universitat de val\u00e9ncia (estudi general)<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 29\/01\/1999<\/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> Fiszman Dal Santo Susana<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Luis Duran hidalgo <\/li>\n<li>nuria Martinez navarrete (vocal)<\/li>\n<li>Manuel Dolz planas (vocal)<\/li>\n<li>Ana Frigolas canoves (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Ana Salvador Alcaraz La compatibilidad de la gelatina con las prote\u00ednas de la leche hace que su [&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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