{"id":547030,"date":"2026-08-28T17:48:22","date_gmt":"2026-08-28T15:48:22","guid":{"rendered":"https:\/\/dev.phytocontrol.com\/non-classifie\/14-dmn-presencia-natural-tratamiento-o-contaminacion-cruzada\/"},"modified":"2026-08-28T17:48:23","modified_gmt":"2026-08-28T15:48:23","slug":"14-dmn-presencia-natural-tratamiento-o-contaminacion-cruzada","status":"publish","type":"post","link":"https:\/\/dev.phytocontrol.com\/es\/vigilancia-reglementaria\/14-dmn-presencia-natural-tratamiento-o-contaminacion-cruzada\/","title":{"rendered":"1,4-DMN: \u00bfpresencia natural, tratamiento o contaminaci\u00f3n cruzada?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><\/p>\n\n<p class=\"wp-block-paragraph\">En una comunicaci\u00f3n del 13\/07\/21, el RELANA, organizaci\u00f3n alemana que agrupa a varios laboratorios, public\u00f3 una declaraci\u00f3n sobre el 1,4-Dimetilnaftaleno (1,4-DMN) en las patatas y otros productos vegetales: <a href=\"https:\/\/www.relana-online.de\/wp-content\/uploads\/2021\/07\/relana-communication-note-21-03-about-14-DMN._210713.pdf\">Communication Note 21-03<\/a>.<\/p>\n\n<p class=\"wp-block-paragraph\">El 1,4-DMN es un antigerminante que ha sustituido al Clorprofam, prohibido en la UE desde el 8 de enero de 2020. Esta mol\u00e9cula de s\u00edntesis est\u00e1 presente de forma natural en la patata.<\/p>\n\n<p class=\"wp-block-paragraph\">Seg\u00fan esta nota del Relana, pertenece al grupo qu\u00edmico de los HAP, y su presencia en el medio ambiente y, por tanto, en los alimentos podr\u00eda deberse a otras fuentes distintas del uso de un producto fitosanitario. El Relana recomienda que esta informaci\u00f3n se tenga en cuenta en la interpretaci\u00f3n de los resultados en productos distintos de la patata de cultivo convencional.<\/p>\n\n<p class=\"wp-block-paragraph\">En efecto, el reglamento 396\/2005 fija a d\u00eda de hoy un LMR en patata de 15 mg\/kg y de 0,01 mg\/kg en los dem\u00e1s cultivos.<\/p>\n\n<p class=\"wp-block-paragraph\">Seg\u00fan el documento de la EFSA \u00ab <a href=\"https:\/\/efsa.onlinelibrary.wiley.com\/doi\/10.2903\/j.efsa.2014.3735\">Reasoned opinion on the setting of a new MRL for 1,4-dimethylnaphthalene in potatoes <\/a>\u00bb se indica, respecto a los dem\u00e1s alimentos, que:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>El LMR de 0,01 mg\/kg no permite cubrir la presencia natural del 1,4-DMN.<\/li>\n\n\n\n<li>Hay poca informaci\u00f3n sobre las cantidades presentes de forma natural en otros vegetales; se han detectado niveles de hasta 0,061 mg\/kg en patatas.<\/li>\n\n\n\n<li>La mayor\u00eda de los valores de fondo natural en las patatas est\u00e1n por debajo del LOQ y algunos valores positivos se sit\u00faan entre 0,015 y 0,061 mg\/kg.<\/li>\n\n\n\n<li>\u00a0<\/li>\n<\/ul>\n\n<p class=\"wp-block-paragraph\">La fiabilidad de los datos no puede verificarse, ya que se desconocen las condiciones de cultivo para los niveles reportados. El n\u00famero de datos tampoco se indica en el dictamen de la EFSA.<\/p>\n\n<p class=\"wp-block-paragraph\">En el documento de la EFSA y en la tesis <a href=\"http:\/\/theses.gla.ac.uk\/319\/\">Oteef, Mohammed Dhafer Y. (2008) Analysis of the potato sprout inhibitor 1, 4-dimethylnapthalene: HPLC method development and applications. PhD thesis, University of Glasgow<\/a>, el contenido natural de 1,4-DMN en las patatas se establece en aproximadamente 4 \u00b5g\/kg.<\/p>\n\n<p class=\"wp-block-paragraph\"><strong><u>Otra fuente potencial de 1,4-DMN<\/u><\/strong><\/p>\n\n<p class=\"wp-block-paragraph\">Los aceites de petr\u00f3leo que pueden a\u00f1adirse a los productos fitofarmac\u00e9uticos como coformulante.<\/p>\n\n<p class=\"wp-block-paragraph\">Un laboratorio miembro del Relana detect\u00f3 0,081 mg\/kg de 1,4-DMN en perejil convencional.<\/p>\n\n<p class=\"wp-block-paragraph\">Tras las investigaciones, la fuente identificada fue el \u00ab <em>solvent naphtha (petroleum), highly aromatic<\/em> \u00bb presente en la formulaci\u00f3n \u00ab <em>Score<\/em> \u00bb a base de Difenoconazol.<\/p>\n\n<p class=\"wp-block-paragraph\">Esta interpretaci\u00f3n se basa en la presencia de is\u00f3meros adicionales de dimetilnaftaleno y monoetilnaftaleno que son caracter\u00edsticos de las diferentes fracciones del petr\u00f3leo.<\/p>\n\n<p class=\"wp-block-paragraph\">Los fertilizantes tambi\u00e9n pueden contener aceites de petr\u00f3leo.<\/p>\n\n<p class=\"wp-block-paragraph\"><strong><u>Recomendaciones del Relana<\/u><\/strong><\/p>\n\n<p class=\"wp-block-paragraph\">En las <strong><u>patatas ECOL\u00d3GICAS<\/u><\/strong>, el Relana recomienda establecer un umbral de <strong><u>0,05 mg\/kg<\/u><\/strong> para el 1,4-DMN.<\/p>\n\n<p class=\"wp-block-paragraph\">En productos distintos de la patata, seg\u00fan el conocimiento actual, la presencia de 1,4-DMN no puede explicarse por una presencia natural. La EFSA indica que:<\/p>\n\n<p class=\"wp-block-paragraph\">\u00ab <em>EFSA is therefore of the opinion that, for the rest of the plant commodities, a default value of 0.10 mg\/kg would be more appropriate to cover the possible natural background levels of 1,4-DMN in plants, although this proposals is not fully supported by a sufficient number of data. This default value of 0.1 mg\/kg was therefore used as input value for chronic consumer intake calculations.<\/em> \u00bb<\/p>\n\n<p class=\"wp-block-paragraph\">Teniendo en cuenta las dem\u00e1s fuentes posibles de 1,4-DMN, el Relana propone una tolerancia de <strong><u>0,1 mg\/kg<\/u><\/strong> en los productos distintos de la patata.<\/p>\n\n<p class=\"wp-block-paragraph\">Esta propuesta del Relana est\u00e1 sujeta a la aprobaci\u00f3n y al acuerdo de los organismos de control de productos ecol\u00f3gicos y de las autoridades competentes correspondientes.<\/p>\n\n<p class=\"wp-block-paragraph\">Sepa que su laboratorio Phytocontrol es el \u00fanico laboratorio franc\u00e9s que ofrece el an\u00e1lisis del 1,4-DMN bajo acreditaci\u00f3n COFRAC; puede consultar nuestro anexo t\u00e9cnico COFRAC N.\u00ba 1-1904 disponible en su \u00e1rea de clientes o en el sitio web de COFRAC.<\/p>\n\n<p class=\"wp-block-paragraph\">\u00bfNecesita informaci\u00f3n t\u00e9cnica, normativa o de tarifas? Nuestra atenci\u00f3n al cliente est\u00e1 disponible de 8:00 a 20:00 h de lunes a viernes en el <a href=\"tel:+33800900775\">+33 800 900 775<\/a> o <a href=\"mailto:service-clients@phytocontrol.com\">service-clients@phytocontrol.com<\/a><\/p>\n\n<p class=\"wp-block-paragraph\">Y para no perderse ninguna noticia de Phytocontrol, \u00a1\u00fanase a nosotros en nuestra p\u00e1gina de <a href=\"https:\/\/www.linkedin.com\/company\/9369065\/\">LinkedIn <\/a> y <a href=\"https:\/\/www.facebook.com\/laboratoirePHYTOCONTROL\">Facebook <\/a>!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>En una comunicaci\u00f3n del 13\/07\/21, el RELANA, organizaci\u00f3n alemana que agrupa a varios laboratorios, public\u00f3&hellip;<\/p>\n","protected":false},"author":8,"featured_media":13698,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[190],"tags":[],"class_list":["post-547030","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-vigilancia-reglementaria"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.4 (Yoast SEO v28.5) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>1,4-DMN: \u00bfpresencia natural, tratamiento o contaminaci\u00f3n cruzada? 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