{"id":57676,"date":"2018-03-09T22:45:27","date_gmt":"2018-03-09T22:45:27","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/enzymatic-degradation-of-polycyclic-aromatic-hydrocarbons-pahs-by-manganese-peroxidase-in-reactors-containing-organic-solvents\/"},"modified":"2018-03-09T22:45:27","modified_gmt":"2018-03-09T22:45:27","slug":"enzymatic-degradation-of-polycyclic-aromatic-hydrocarbons-pahs-by-manganese-peroxidase-in-reactors-containing-organic-solvents","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/santiago-de-compostela\/enzymatic-degradation-of-polycyclic-aromatic-hydrocarbons-pahs-by-manganese-peroxidase-in-reactors-containing-organic-solvents\/","title":{"rendered":"Enzymatic degradation of polycyclic aromatic hydrocarbons (pahs) by manganese peroxidase in reactors containing organic solvents"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Gemma M\u00aa Eibes Gonz\u00e1lez <\/strong><\/h2>\n<p>Los hidrocarburos arom\u00e1ticos polic\u00edclicos (haps) son contaminantes presentes en el medio ambiente que, debido a su baja solubilidad y alta hidrofobicidad, presentan un alto car\u00e1cter recalcitrante. En el presente trabajo de investigaci\u00f3n se plantea su eliminaci\u00f3n mediante el uso de la enzima ligninol\u00edtica manganeso peroxidasa. Esta enzima extracelular, procedente de los hongos de putrefacci\u00f3n blanca, se ha demostrado que posee una alta capacidad oxidativa, por lo que se utiliza para la degradaci\u00f3n de compuestos recalcitrantes.  como compuesto modelo se ha utilizado antraceno, que es un hap tric\u00edclico con una solubilidad en agua muy baja, de tan solo 0,07 mg\/l. Para incrementar su disponibilidad y poder utilizar reactores enzim\u00e1ticos se utilizaron disolventes org\u00e1nicos, tanto miscibles como inmiscibles, operando por tanto con reactores monof\u00e1sicos como bif\u00e1sicos. la secuencia de trabajo consisti\u00f3, en primer lugar, en la selecci\u00f3n del disolvente, para, a continuaci\u00f3n, optimizar el proceso de degradaci\u00f3n y finalmente estudiar la cin\u00e9tica enzim\u00e1tica y proponer un modelo para los reactores, tanto monof\u00e1sicos como bif\u00e1sicos. en el caso del disolvente miscible se seleccion\u00f3 el que dio mejores resultados de solubilizaci\u00f3n de antraceno en sus mezclas y a la vez que afect\u00f3 en menor medida a la estabilidad enzim\u00e1tica. La acetona en una concentraci\u00f3n del 36% (v:v) fue el disolvente seleccionado. En la optimizaci\u00f3n de la degradaci\u00f3n se tuvo en cuenta los par\u00e1metros que afectan al ciclo catal\u00edtico de la enzima, tales como la adici\u00f3n de per\u00f3xido de hidr\u00f3geno, la concentraci\u00f3n de mn2+ y el \u00e1cido org\u00e1nico y concentraci\u00f3n del mismo. Posteriormente se evaluaron otros par\u00e1metros ambientales como la presencia de una atm\u00f3sfera de ox\u00edgeno, as\u00ed como la temperatura y la presencia de luz. Se estudi\u00f3 la cin\u00e9tica enzim\u00e1tica y se propuso un modelo de primer orden con respecto al sustrato y autocatal\u00edtico, debido a la formaci\u00f3n de quinonas que act<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Enzymatic degradation of polycyclic aromatic hydrocarbons (pahs) by manganese peroxidase in reactors containing organic solvents<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Enzymatic degradation of polycyclic aromatic hydrocarbons (pahs) by manganese peroxidase in reactors containing organic solvents <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Gemma M\u00aa Eibes Gonz\u00e1lez <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Santiago de compostela<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 26\/03\/2007<\/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>Juan  Manuel Lema Rodicio<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: m.s. Cabral joaquim <\/li>\n<li>f\u00e9lix Garc\u00eda-ochoa soria (vocal)<\/li>\n<li>Manuel Canovas diaz (vocal)<\/li>\n<li>Mar\u00eda Jos\u00e9 N\u00fa\u00f1ez Garc\u00eda (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Gemma M\u00aa Eibes Gonz\u00e1lez Los hidrocarburos arom\u00e1ticos polic\u00edclicos (haps) son contaminantes presentes en el medio ambiente que, [&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":[2642,977],"tags":[24574,127449,2651,127450,68931,35225],"class_list":["post-57676","post","type-post","status-publish","format-standard","hentry","category-eliminacion-de-residuos","category-santiago-de-compostela","tag-felix-garcia-ochoa-soria","tag-gemma-ma-eibes-gonzalez","tag-juan-manuel-lema-rodicio","tag-m-s-cabral-joaquim","tag-manuel-canovas-diaz","tag-maria-jose-nunez-garcia"],"_links":{"self":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/57676","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=57676"}],"version-history":[{"count":0,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/57676\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/media?parent=57676"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/categories?post=57676"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/tags?post=57676"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}