{"id":18892,"date":"2002-10-09T00:00:00","date_gmt":"2002-10-09T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/cultivo-mixotrofico-de-la-microalga-phaeodactylum-tricornutum-utex-640\/"},"modified":"2002-10-09T00:00:00","modified_gmt":"2002-10-09T00:00:00","slug":"cultivo-mixotrofico-de-la-microalga-phaeodactylum-tricornutum-utex-640","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/quimica\/cultivo-mixotrofico-de-la-microalga-phaeodactylum-tricornutum-utex-640\/","title":{"rendered":"Cultivo mixotr\u00f3fico de la microalga phaeodactylum tricornutum utex 640"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Mar\u00eda Del Carmen Cer\u00f3n Garc\u00eda <\/strong><\/h2>\n<p>En este trabajo se ha demostrado que el cultivo mixotr\u00f3fico de microalgas para la producci\u00f3n de sustancias bioactivas es m\u00e1s que una alternativa al cultivo fotoautotr\u00f3fico. La microalga utilizada fue phaeodactylum tricornutum utex 640, una especie muy utilizada por ser una fuente potencial de \u00e1cido eicosapentaenoico (epa).  la fase de selecci\u00f3n del nutriente org\u00e1nico y su concentraci\u00f3n en el medio de cultivo se\u00f1al\u00f3 al glicerol, adicionado a la concentraci\u00f3n de 0.1m, como el nutriente org\u00e1nico con mayor potencialidad, muy por encima del control fotoautotr\u00f3fico. Adicionalmente, se hicieron cultivos fed-batch empleando urea y cloruro am\u00f3nico como fuentes de nitr\u00f3geno complementarias y glicerol (0.1m) como fuente org\u00e1ncia de carbono. La productividad m\u00e1xima de biomasa fue 8 veces superior al control realizado glicerol y nitrato s\u00f3dico como fuente de nitr\u00f3geno. La productividad m\u00e1xima de epa supuso una mejora sobre el control (fotoautotr\u00f3fico) de 10 veces.  se realiz\u00f3 un an\u00e1lisis para cuantificar la interrelaci\u00f3n que existe entre la disponibilidad de luz y el consumo de sustrato y la eficacia con la que es utilizado por las microalgas.  como paso previo al escalado de fotobiorreactores a nivel de laboratorio (columnas de burbuejo de 2 litros de capacidad), y bas\u00e1ndose en el conocimiento de las concentraciones de trabajo \u00f3ptimas de sustrato y de la cuantificaci\u00f3n de requerimientos de sustrato y luz, se dise\u00f1\u00f3 una estrategia de adici\u00f3n de nutriente y suministro de irradiancia para maximizar el crecimiento.  los rendimientos de biomasa y epa fueron muy superiores a los del control fotoautotr\u00f3fico. Utilizando la mejor estrategia de adici\u00f3n de nutriente, se realizaron experimentos en modo semicontinuo con distintas velocidades de diluci\u00f3n. Las productividades de biomasa y epa fueron del orden de 2gl-1 d-1 y 52 mg l-1 d-1, respectivamente. Estos valores son comparables con los publicados para esta microalga cultiv<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Cultivo mixotr\u00f3fico de la microalga phaeodactylum tricornutum utex 640<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Cultivo mixotr\u00f3fico de la microalga phaeodactylum tricornutum utex 640 <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Mar\u00eda Del Carmen Cer\u00f3n Garc\u00eda <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Almer\u00eda<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 10\/09\/2002<\/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>Francisco Garc\u00eda Camacho<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Miguel Garc\u00eda guerrero <\/li>\n<li>alfonso Robles medina (vocal)<\/li>\n<li> S\u00e1nchez sancho Mar\u00eda eugenia (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 Mar\u00eda Del Carmen Cer\u00f3n Garc\u00eda En este trabajo se ha demostrado que el cultivo mixotr\u00f3fico de microalgas [&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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