{"id":14876,"date":"2019-11-10T10:05:00","date_gmt":"2019-11-10T09:05:00","guid":{"rendered":"http:\/\/exgdete.cluster028.hosting.ovh.net\/?p=14876"},"modified":"2026-08-29T12:05:16","modified_gmt":"2026-08-29T10:05:16","slug":"metodo-innovador-sobre-los-sulfitos","status":"publish","type":"post","link":"https:\/\/dev.phytocontrol.com\/es\/noticias\/metodo-innovador-sobre-los-sulfitos\/","title":{"rendered":"M\u00e9todo innovador sobre sulfitos"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><b>Con el fin de reforzar su experiencia en el \u00e1mbito del an\u00e1lisis de <a href=\"https:\/\/dev.phytocontrol.com\/es\/nuestros-analisis\/allergenes\/\">al\u00e9rgenos<\/a>, Phytocontrol ha finalizado un desarrollo de I+D innovador sobre la determinaci\u00f3n de sulfitos.<\/b><\/p>\n\n<p class=\"wp-block-paragraph\">Esta soluci\u00f3n diferenciadora respecto a los m\u00e9todos reconocidos existentes, como la colorimetr\u00eda y el m\u00e9todo Monier Williams, se basa en el siguiente principio: los sulfitos se extraen de las muestras con una soluci\u00f3n de formaldeh\u00eddo en agua. Los extractos se purifican despu\u00e9s antes de analizarse mediante LC-MS\/MS.<\/p>\n\n<p class=\"wp-block-paragraph\">Los sulfitos se utilizan con frecuencia como aditivos en una amplia gama de alimentos y bebidas, con el fin de inhibir el crecimiento bacteriano, controlar las reacciones enzim\u00e1ticas e impedir la oxidaci\u00f3n.<\/p>\n\n<p class=\"wp-block-paragraph\">La ingesta de alimentos con altos contenidos en sulfitos puede provocar reacciones asm\u00e1ticas e intolerancias alimentarias. La dosis diaria admisible seg\u00fan la OMS es de 0,7 mg\/kg de masa corporal.<\/p>\n\n<p class=\"wp-block-paragraph\">El m\u00e9todo Monier-Williams optimizado, que es el m\u00e9todo de referencia habitualmente utilizado, permite determinar los sulfitos totales en los alimentos. Este m\u00e9todo se basa en la destilaci\u00f3n \u00e1cida del SO2 y posterior titulaci\u00f3n del \u00e1cido sulf\u00farico generado con sosa. Sin embargo, este m\u00e9todo es conocido por sus efectos de sobredosificaci\u00f3n y, en ocasiones, falsos positivos relacionados con la codestilaci\u00f3n de compuestos vol\u00e1tiles interferentes en el momento de la titulaci\u00f3n final.<\/p>\n\n<h3 class=\"wp-block-heading\">La soluci\u00f3n Phytocontrol<\/h3>\n\n<p class=\"wp-block-paragraph\">Dado que varios estudios* han demostrado que el m\u00e9todo Monier Williams puede generar interferencias relacionadas con la presencia de \u00e1cido ac\u00e9tico y propi\u00f3nico, como en el vinagre u otros productos marinados y en salmuera, Phytocontrol ha desarrollado un m\u00e9todo m\u00e1s espec\u00edfico basado en la derivaci\u00f3n de los sulfitos con formaldeh\u00eddo y determinaci\u00f3n por LC-MS\/MS.<\/p>\n\n<p class=\"wp-block-paragraph\">De este modo, el laboratorio puede determinar la presencia de SO<sub>2<\/sub> a partir de 10 mg\/kg sin riesgo de interferencias relacionadas con la matriz. Este an\u00e1lisis innovador y acreditado permite investigar y cuantificar los sulfitos en diversos productos de origen vegetal.<\/p>\n\n<p class=\"wp-block-paragraph\">Para cualquier informaci\u00f3n t\u00e9cnica, tarifaria y\/o normativa, no dude en <a href=\"https:\/\/dev.phytocontrol.com\/es\/contactos-accesos\/\">contactarnos<\/a>.<\/p>\n\n<p class=\"wp-block-paragraph\"><i>*Comparison of four different methods for the determination of sulfites in foods marketed in South Korea &#8211; Ho-Soo Lima, Sung-Kwan Parka, So-Hee Kima, Sung-Bong Songa, Su-Jin Janga &amp; Meehye Kima a Food Additives and Packages Division, Ministry of Food and Drug Safety, Osong-eup,Chungcheongbuk-do, Korea Published online: 16 Jan 2014.<\/i><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Con el fin de reforzar su experiencia en el \u00e1mbito del an\u00e1lisis de al\u00e9rgenos, Phytocontrol&hellip;<\/p>\n","protected":false},"author":8,"featured_media":13550,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[192],"tags":[],"class_list":["post-14876","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-noticias"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.4 (Yoast SEO v28.5) - 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