{"id":81435,"date":"2018-03-10T00:05:18","date_gmt":"2018-03-10T00:05:18","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/biodegradabilidad-del-polivinilalcohol-pvoh-y-del-etilvinilalcohol-evoh-con-los-extractos-enzimaticos-del-hongo-phanerochaete-chrysosporium\/"},"modified":"2018-03-10T00:05:18","modified_gmt":"2018-03-10T00:05:18","slug":"biodegradabilidad-del-polivinilalcohol-pvoh-y-del-etilvinilalcohol-evoh-con-los-extractos-enzimaticos-del-hongo-phanerochaete-chrysosporium","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-tecnologicas\/biodegradabilidad-del-polivinilalcohol-pvoh-y-del-etilvinilalcohol-evoh-con-los-extractos-enzimaticos-del-hongo-phanerochaete-chrysosporium\/","title":{"rendered":"Biodegradabilidad del polivinilalcohol-pvoh- y del etilvinilalcohol-evoh-con los extractos enzim\u00e1ticos del hongo phanerochaete chrysosporium"},"content":{"rendered":"<h2>Tesis doctoral de <strong>  Mej\u00eda Gall\u00f3n Amanda In\u00e9s <\/strong><\/h2>\n<p>Los envases pl\u00e1sticos tienen amplia aplicaci\u00f3n en el envasado de la industria alimentaria moderna,pero sus desechos pueden causar problemas porque terminan siendo una parte significante en peso y volumen de los vertederos donde permanecen muchos a\u00f1os.  en el presente trabajo se abord\u00f3 la biodegradaci\u00f3n del pvoh y del evoh con los extractos  enzim\u00e1ticos del phanerochaete  chrysosporium. Conocer las condiciones bajo las cuales ocurre es importante para contribuir al conocimiento sobre la biodegradaci\u00f3n de los residuos de envases pl\u00e1sticos que conten\u00edan alimentos y aumentar la cuota del % de reciclaje en estos envases.  bajo las condiciones estudiadas, los extractos enzim\u00e1ticos del phanerochaete chrysosporium causaron una disminuci\u00f3n del 74% del peso molecular -pm promedio del pvoh en 15 d\u00edas. La disminuci\u00f3n del pm es mayor si el pvoh inicial tiene una estructura m\u00e1s amorfa.El principal producto de degradaci\u00f3n de bajo pm es el benzaldeh\u00eddo. Esto abre la posibilidad de la obtenci\u00f3n de materias primas de inter\u00e9s a partir de desechos.  en cu\u00e1nto al evoh, se obtuvo difernte grado de biodegradaci\u00f3n dependiendo del estado f\u00edsico del evoh si es materia prima o si es una pel\u00edcula con aplicaciones comericales, conteniendo ambas 27% de polietileno lo cual nos lleva a conclu\u00edr que diferencias en el pm y diferentes concentraciones de pe tambi\u00e9n podr\u00edan influir.La biodegradaci\u00f3n del evoh solo se ha abordado con una cepa term\u00f3fila (60\u00c2\u00bac), mientras que los resultados obtenidos en este trabajo, a temperatura ambiente, facilitan el proceso de reciclaje.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Biodegradabilidad del polivinilalcohol-pvoh- y del etilvinilalcohol-evoh-con los extractos enzim\u00e1ticos del hongo phanerochaete chrysosporium<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Biodegradabilidad del polivinilalcohol-pvoh- y del etilvinilalcohol-evoh-con los extractos enzim\u00e1ticos del hongo phanerochaete chrysosporium <\/li>\n<li><strong>Autor:<\/strong>\u00a0  Mej\u00eda Gall\u00f3n Amanda In\u00e9s <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Polit\u00e9cnica de Valencia<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 29\/11\/1999<\/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 Mulet Pons<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: pedro Fito maupoey <\/li>\n<li>Francisco Pi\u00f1aga (vocal)<\/li>\n<li>carmen Rosello (vocal)<\/li>\n<li>angel Berna (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Mej\u00eda Gall\u00f3n Amanda In\u00e9s Los envases pl\u00e1sticos tienen amplia aplicaci\u00f3n en el envasado de la industria alimentaria [&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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