{"id":88059,"date":"2018-03-10T00:12:59","date_gmt":"2018-03-10T00:12:59","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/estudio-fitoqua%c2%admico-de-especies-de-la-familia-celastraceae-flora-panamena-maytenus-blepharodes-ycrossopetalobatum\/"},"modified":"2018-03-10T00:12:59","modified_gmt":"2018-03-10T00:12:59","slug":"estudio-fitoqua%c2%admico-de-especies-de-la-familia-celastraceae-flora-panamena-maytenus-blepharodes-ycrossopetalobatum","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/quimica\/estudio-fitoqua%c2%admico-de-especies-de-la-familia-celastraceae-flora-panamena-maytenus-blepharodes-ycrossopetalobatum\/","title":{"rendered":"Estudio fitoqu\u00edmico de especies de la familia celastraceae (flora pa\u00f1ame\u00f1a: maytenus blepharodes ycrossopetalobatum."},"content":{"rendered":"<h2>Tesis doctoral de <strong> F\u00e9lix Rodr\u00edguez P\u00e9rez <\/strong><\/h2>\n<p>En el trabajo lelvado a cabo para la realizaci\u00f3n de la presente memoria, se realiza el estudio fitoqu\u00edmico de la ra\u00edz d emaytenus blepahrodes lundell y crossopetalum lobatum lundell, recolectadas en panam\u00e1. De estas especies se a\u00edslan sesquiterpenos con esqueleto de dihidro-b-agarofurano, cuyas configuraciones absolutas se determinan mediante estudios de ciroismo circular haciendo uso de la regla del excit\u00f3n quiralidad del dibenzoato. Se a\u00edslan triterpenos cuyas estructuras se elucidan mediante cuidados estudios de sus datos espectrosc\u00f3picos; dos de ellos, barudiona y 6-epibarudiona, son productos clave en la ruta biosint\u00e9tica de formaci\u00f3n de las triterpenometil\u00e9nquinonas. se a\u00edslan triterpenometilenquinonas y triterpenofenoles, compuestos que ayudan a esclarecer la ruta biog\u00e9netica que conduce a la formaci\u00f3n de este grupo de metablotios. Se a\u00edslan d\u00edmeros de triterpenos, cuyas configuraciones absolutas se determian mediante estudios de dicroismo cirucular.  se determina la actividad antimicrobiana frente a bacterias gram + y gram &#8211; y la levadura candida albicans, y la actividad citot\u00f3xica frente a las l\u00edneas celulares hela, hep-2 y vero, de los metabolitos aislados, se concluye que las actividades amtimicrobianas y cit\u00f3tocia se ven incrementadas con el grado de oxidaci\u00f3n de la mol\u00e9cula y disminuye con el tama\u00f1o de \u00e9sta, lo que apoya la hip\u00f3tesis propuesta anteriormente. La evaluaci\u00f3n de las actividades biol\u00f3gicas del sod\u00edmeros triterp\u00e9nicos y los resultados negativos obtenidos, corroboran la tesis de que la polimerizaci\u00f3n de productos bioactiovs como las triterpenoquinonas, est\u00e1 relaciona con una estrategia de destoxificaci\u00f3n de la planta, de forma que la planta puede alacenarlos y v\u00eda una reacci\u00f3n de retrodiels-alder disponer de los mon\u00f3meros activos dependiendo de las necesidades de la planta.  la aparici\u00f3n de nuevos tipos de estructuras y agrupamientos funcionales renueva el inter\u00e9s por el estudio d<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Estudio fitoqu\u00edmico de especies de la familia celastraceae (flora pa\u00f1ame\u00f1a: maytenus blepharodes ycrossopetalobatum.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Estudio fitoqu\u00edmico de especies de la familia celastraceae (flora pa\u00f1ame\u00f1a: maytenus blepharodes ycrossopetalobatum. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 F\u00e9lix Rodr\u00edguez P\u00e9rez <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 La laguna<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 18\/12\/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>Antonio Gonz\u00e1lez Gonz\u00e1lez<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal:  Soto c\u00e1mara Jos\u00e9 Luis <\/li>\n<li>Santiago Castanys cuello (vocal)<\/li>\n<li>carmen Betancor espino (vocal)<\/li>\n<li>  (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de F\u00e9lix Rodr\u00edguez P\u00e9rez En el trabajo lelvado a cabo para la realizaci\u00f3n de la presente memoria, se [&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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