{"id":107916,"date":"2011-11-04T00:00:00","date_gmt":"2011-11-04T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/incidencia-y-niveles-de-micotoxinas-en-cebada-y-cereales-de-desayuno\/"},"modified":"2011-11-04T00:00:00","modified_gmt":"2011-11-04T00:00:00","slug":"incidencia-y-niveles-de-micotoxinas-en-cebada-y-cereales-de-desayuno","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/analisis-cromatografico\/incidencia-y-niveles-de-micotoxinas-en-cebada-y-cereales-de-desayuno\/","title":{"rendered":"Incidencia y niveles de micotoxinas en cebada y cereales de desayuno"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Mar\u00eda Ib\u00e1\u00f1ez Vea <\/strong><\/h2>\n<p>Mycotoxins are toxic secondary metabolites produced by fungal species in agricultural commodities and processed food. With regard to toxicity and occurrence, the most important mycotoxins are aflatoxins (b1, g1, b2 and g2), ochratoxin a (ota) and to a lesser extent, trichothecenes (trs) and zearalenone (zea).  aflatoxins (afs), ota and zea were determined in barley and breakfast cereals by means of uhplc-fld and trichothecenes were determined in barley by gc-ms. Methods were validated according to selectivity, linearity, precision and accuracy, limits of detection and quantification, stability, recovery and robustness. They have fulfilled the requirements established in the commission regulation (ec) n\u00c2\u00ba 401\/2006.   the co-occurrence of these fourteen mycotoxins has been evaluated in 123 barley samples from navarra (spain). Ninety-five percent of them presented detectable levels of three or more toxins; although at very low levels, far below the maximum permitted limits established by the eu. The calculated tdi values were low, except for the maximum level found for don and t-2 + ht-2. Samples were classified according to place and year of harvest (2007 and 2008), organic or traditional farming and variety of barley, observing some differences or tendencies for each toxin. co occurrence of afs, ota and zea in 46 breakfast cereal samples from the spanish market have been analyzed. Samples were contaminated with afb1, ota and zea with values far below the permitted limits established by the eu. The co-occurrence of mycotoxins and the influence of some parameters (type of cereal, fiber content, and name vs. Generic brand products) were studied.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Incidencia y niveles de micotoxinas en cebada y cereales de desayuno<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Incidencia y niveles de micotoxinas en cebada y cereales de desayuno <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Mar\u00eda Ib\u00e1\u00f1ez Vea <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Navarra<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 11\/04\/2011<\/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>Mar\u00eda Elena Gonz\u00e1lez Pe\u00f1as<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: jordi Ma\u00f1es vinuesa <\/li>\n<li>adela Lopez de cerain salsamendi (vocal)<\/li>\n<li>Jos\u00e9 Miguel Soriano del castillo (vocal)<\/li>\n<li>vicente Sanchis almenar (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Mar\u00eda Ib\u00e1\u00f1ez Vea Mycotoxins are toxic secondary metabolites produced by fungal species in agricultural commodities and processed [&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":[1595,17749],"tags":[32121,18237,39121,32246,216547,17021],"class_list":["post-107916","post","type-post","status-publish","format-standard","hentry","category-analisis-cromatografico","category-navarra","tag-adela-lopez-de-cerain-salsamendi","tag-jordi-manes-vinuesa","tag-jose-miguel-soriano-del-castillo","tag-maria-elena-gonzalez-penas","tag-maria-ibanez-vea","tag-vicente-sanchis-almenar"],"_links":{"self":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/107916","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=107916"}],"version-history":[{"count":0,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/107916\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/media?parent=107916"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/categories?post=107916"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/tags?post=107916"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}