{"id":72426,"date":"2018-03-09T23:17:14","date_gmt":"2018-03-09T23:17:14","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/metodos-quimioenzimaticos-para-la-obtencion-de-derivados-de-polioles\/"},"modified":"2018-03-09T23:17:14","modified_gmt":"2018-03-09T23:17:14","slug":"metodos-quimioenzimaticos-para-la-obtencion-de-derivados-de-polioles","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/quimica\/metodos-quimioenzimaticos-para-la-obtencion-de-derivados-de-polioles\/","title":{"rendered":"M\u00e9todos quimioenzimaticos para la obtenci\u00f3n de derivados de polioles"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Jonh Jairo Mendez Arteaga <\/strong><\/h2>\n<p>Los biocatalizadores, tanto enzimas aisladas como c\u00e9lulas enteras (resting cells), son conocidos por su eficiencia como biocatalizadores de procesos qu\u00edmicos. Sus propiedades de regio- y estereoselectividad as\u00ed como su aplicaci\u00f3n en solventes org\u00e1nicos han hecho de ellos herramientas importantes en s\u00edntesis org\u00e1nica. Diversas aplicaciones en diferentes \u00e1reas del sector productivo muestran su importancia y potencial en la industria alimentaria, petroqu\u00edmica y f\u00e1rmaco-qu\u00edmica. El tema central de estudio de la presente tesis ha sido la aplicaci\u00f3n de un biocatalizador, obtenido a partir de una cepa de rhizopous oryzae, a la preparaci\u00f3n de derivados de polioles. Para ello se ha procedido en primer lugar a determinar un conjunto de par\u00e1metros cin\u00e9ticos b\u00e1sicos de este biocatalizador. Posteriormente se ha aplicado el mismo a la transformaci\u00f3n de traicilglic\u00e9ridos y de \u00e9steres de clorohidrinas. La transformaci\u00f3n de traicilglic\u00e9ridos se ha estudiado directamente sobre diferentes materiales oleaginosos. Por su parte, la transformaci\u00f3n de \u00e9steres de clorohidritnas ha permitido la preparaci\u00f3n de (r)-4-cloro-2-butanol con un ee del 98%. la preparaci\u00f3n de estos \u00e9steres de clorohidrina se ha llevado a cabo mediante una reacci\u00f3n con clorotrimetilsilano, reacci\u00f3n desarrollada en los laboratorios de qu\u00edmica de la universidad de lleida, y sobre la que est\u00e1 tesis tambi\u00e9n presenta nuevos datos que parecen confirmar el mecanismo en su d\u00eda propuesto<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>M\u00e9todos quimioenzimaticos para la obtenci\u00f3n de derivados de polioles<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 M\u00e9todos quimioenzimaticos para la obtenci\u00f3n de derivados de polioles <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Jonh Jairo Mendez Arteaga <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Lleida<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 21\/01\/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>Ramon Canela Garayoa<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: magi Riba <\/li>\n<li>jordi Eras joli (vocal)<\/li>\n<li>marc Tor (vocal)<\/li>\n<li>Francisco Valero barranco (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Jonh Jairo Mendez Arteaga Los biocatalizadores, tanto enzimas aisladas como c\u00e9lulas enteras (resting cells), son conocidos por [&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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