{"id":69111,"date":"2004-07-07T00:00:00","date_gmt":"2004-07-07T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/microbiologa%c2%ada-del-pescado-con-especial-atencion-a-aeromonas-y-plesiomonas\/"},"modified":"2004-07-07T00:00:00","modified_gmt":"2004-07-07T00:00:00","slug":"microbiologa%c2%ada-del-pescado-con-especial-atencion-a-aeromonas-y-plesiomonas","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/leon\/microbiologa%c2%ada-del-pescado-con-especial-atencion-a-aeromonas-y-plesiomonas\/","title":{"rendered":"Microbiolog\u00eda del pescado, con especial atenci\u00f3n a aeromonas y plesiomonas"},"content":{"rendered":"<h2>Tesis doctoral de <strong>  Gonz\u00e1lez Rodr\u00edguez M. Nieves <\/strong><\/h2>\n<p>Se analizaron 12 lotes de filetes de trucha fresca y 10 lotes de rodajes de salm\u00f3n fresco, estudiando la evoluci\u00f3n del grado de frescura a lo largo del almacenamiento a refrigeraci\u00f3n. Se concluy\u00f3 que los filetes de trucha mostraban signos evidentes de alteraci\u00f3n a los 7 d\u00edas del almacenamiento y las rodajas de salm\u00f3n a los 4 d\u00edas; en ambos casos, los recuentos de microorganismos totales eran superiores a 8 log ufc\/g. Solamente se detect\u00f3 la presencia de una bacteria pat\u00f3gena, listeria monocytogenes, en un lote de filetes de trucha tras cuatro d\u00edas de almacenamiento, confirm\u00e1ndose tambi\u00e9n la identidad de 140 cepas del g\u00e9nero aeromonas, con una elevada incidencia de cepas pertenecientes a grupos de hibridaci\u00f3n potencialmente pat\u00f3genos. Tambi\u00e9n se estudiaron 24 lotes de trucha ahumada y 30 lotes de salm\u00f3n ahumado, realizando el muestreo dos semanas de alcanzar la fecha de caducidad indicada en el envase. La calidad organol\u00e9ptica y microbiol\u00f3gica de las muestras de ahumados fue aceptable en todos los casos.  por otra parte, se estudio la actividad hemol\u00edtica y proteol\u00edtica de dos cepas de aeromonas aisladas de muestras de pescado y que presentaban enterotoxicidad en modelos animales. Estas cepas se pod\u00edan multiplicar activamente en extracto de pescado. Sin embargo, la expresi\u00f3n de su actividad hemol\u00edtica se ve\u00eda inhbida por las bajas temperaturas, mientras que la producci\u00f3n de proteasas estaba favorecida por el crecimiento en extracto de pescado a temperaturas mes\u00f3filas. El estudio de la actividad hemol\u00edtica de cepas de plesiomonas shigelloides aisladas de pescado y otras muestras relacionadas indic\u00f3 que estas cepas producen, al menos, dos factores hemol\u00edticos, cuya expresi\u00f3n depende de las condiciones del cultivo y cuya detecci\u00f3n se ve afectada por la t\u00e9cnica utilizada.  finalmente se ha desarrollado una t\u00e9cnica de pcr para la detecci\u00f3n de cepas de aeromonas potencialmente pat\u00f3genas (portadoras de los ge<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Microbiolog\u00eda del pescado, con especial atenci\u00f3n a aeromonas y plesiomonas<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Microbiolog\u00eda del pescado, con especial atenci\u00f3n a aeromonas y plesiomonas <\/li>\n<li><strong>Autor:<\/strong>\u00a0  Gonz\u00e1lez Rodr\u00edguez M. Nieves <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Le\u00f3n<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 07\/07\/2004<\/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> Garc\u00eda L\u00f3pez M. Luisa<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: andr\u00e9s Otero carballeira <\/li>\n<li> Fern\u00e1ndez aparicio Jes\u00fas Manuel (vocal)<\/li>\n<li> Hoz peralez lorenzo de la (vocal)<\/li>\n<li>Carlos Rodr\u00edguez osorio (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Gonz\u00e1lez Rodr\u00edguez M. Nieves Se analizaron 12 lotes de filetes de trucha fresca y 10 lotes de [&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":[4430],"tags":[36041,151484,83160,60174,151482,151483],"class_list":["post-69111","post","type-post","status-publish","format-standard","hentry","category-leon","tag-andres-otero-carballeira","tag-carlos-rodriguez-osorio","tag-fernandez-aparicio-jesus-manuel","tag-garcia-lopez-m-luisa","tag-gonzalez-rodriguez-m-nieves","tag-hoz-peralez-lorenzo-de-la"],"_links":{"self":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/69111","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=69111"}],"version-history":[{"count":0,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/69111\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/media?parent=69111"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/categories?post=69111"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/tags?post=69111"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}