{"id":86099,"date":"2018-03-10T00:10:38","date_gmt":"2018-03-10T00:10:38","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/utilidad-de-la-reometria-de-torsion-para-la-caracterizacion-de-sistemas-celulosicos-de-interes-enextrusion-esferonizacion\/"},"modified":"2018-03-10T00:10:38","modified_gmt":"2018-03-10T00:10:38","slug":"utilidad-de-la-reometria-de-torsion-para-la-caracterizacion-de-sistemas-celulosicos-de-interes-enextrusion-esferonizacion","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-medicas\/utilidad-de-la-reometria-de-torsion-para-la-caracterizacion-de-sistemas-celulosicos-de-interes-enextrusion-esferonizacion\/","title":{"rendered":"Utilidad de la reometr\u00eda de torsi\u00f3n para la caracterizaci\u00f3n de sistemas celul\u00f3sicos de inter\u00e9s enextrusi\u00f3n-esferonizaci\u00f3n"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Lisardo \u00e1lvarez Fern\u00e1ndez <\/strong><\/h2>\n<p>En el presente estudio se ha llevado a cabo la evaluaci\u00f3n de tres sistemas (celulosa microcristalina-agua, celulosa microfina-agente aglutinante-agua ycelulosa microcristalina-principio activo-agua), utilizados como modelos para extrusi\u00f3n-esferonizaci\u00f3n, con un doble objetivo:  * delimitar la utilidad de la reometr\u00eda de torsi\u00f3n para la caracterizaci\u00f3n reol\u00f3gica de estos sistemas.  * establecer la versatilidad que ofrecen las mases humectadas de m\u00e1xima consistencia, identificadas mediante reomtr\u00eda de torsi\u00f3n, para la modulaci\u00f3n de las propiedades morfol\u00f3gicas, microestructurales y de funcionalidad de los pelets a que dan lugar.  para alcanzar estos objetivos generales, el trabajo se ha estructurado en tres etapas, que coinciden con la evaluaci\u00f3n de cada uno de los sistemas.  en la primera etapa se pretende conocer la influencia de las condiciones de esferonizaci\u00f3n sobre las propiedades del sopelets eleborados apartir de masas celulosa microcristalina-agua de maxima consistencia. La reometr\u00eda de torsi\u00f3n se revel\u00f3 como una t\u00e9cnica \u00fatil para caracterizar ecol\u00f3gicamente este tipo de sistemas y permiti\u00f3 una f\u00e1cil identificaci\u00f3n del volumen de agua que conduce a las masas humectadas de m\u00e1xima consistencia. Este tipo de sistemas resultaron adecuados para la elaboraci\u00f3n de pelets por extrusi\u00f3n-esferonizaci\u00f3n en una amplia variedad de condiciones de esferonizaci\u00f3n.  la segunda etapa del trabajo se centr\u00f3 en la evaluaci\u00f3n y comparaci\u00f3n de las propiedades de tres agentes aglutinantes (hidroxipropilmetil celulosas) de distinta viscosidad nominal incorporados a sistemas con celulosa microfina. se observ\u00f3 una reducida capacidad de discriminaci\u00f3n del re\u00f3metro de torsi\u00f3n para la identificaci\u00f3n de las masas humectadas de m\u00e1xima consistencia en los sistemas de celulosa microfina que incorporan las hpmcs de menor viscosidad nominal y una marcada influencia de esta variable sobre las propiedades de los pelets.  en la<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Utilidad de la reometr\u00eda de torsi\u00f3n para la caracterizaci\u00f3n de sistemas celul\u00f3sicos de inter\u00e9s enextrusi\u00f3n-esferonizaci\u00f3n<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Utilidad de la reometr\u00eda de torsi\u00f3n para la caracterizaci\u00f3n de sistemas celul\u00f3sicos de inter\u00e9s enextrusi\u00f3n-esferonizaci\u00f3n <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Lisardo \u00e1lvarez Fern\u00e1ndez <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Santiago de compostela<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 20\/07\/2000<\/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> Souto Pardo M. Consuelo<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: angel Concheiro nine <\/li>\n<li>Mar\u00eda  rosa Jimenez castellanos ballesteros (vocal)<\/li>\n<li>Jos\u00e9 Lastres garac\u00eda (vocal)<\/li>\n<li>pilar Bustamente mart\u00ednez (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Lisardo \u00e1lvarez Fern\u00e1ndez En el presente estudio se ha llevado a cabo la evaluaci\u00f3n de tres sistemas [&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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"categories":[9,957,3304,977],"tags":[3014,180926,180924,3013,180927,180925],"class_list":["post-86099","post","type-post","status-publish","format-standard","hentry","category-ciencias-medicas","category-farmacologia","category-preparacion-de-farmacos","category-santiago-de-compostela","tag-angel-concheiro-nine","tag-jose-lastres-garacia","tag-lisardo-alvarez-fernandez","tag-maria-rosa-jimenez-castellanos-ballesteros","tag-pilar-bustamente-Martinez","tag-souto-pardo-m-consuelo"],"_links":{"self":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/86099","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/comments?post=86099"}],"version-history":[{"count":0,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/86099\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/media?parent=86099"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/categories?post=86099"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/tags?post=86099"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}