{"id":101955,"date":"2025-04-03T08:56:30","date_gmt":"2025-04-03T06:56:30","guid":{"rendered":"https:\/\/www.bioecoactual.com\/?p=101955"},"modified":"2025-04-03T09:03:41","modified_gmt":"2025-04-03T07:03:41","slug":"alcaloides-pirrolizidina-en-aliments-risc-ocult","status":"publish","type":"post","link":"https:\/\/www.bioecoactual.com\/ca\/2025\/04\/03\/alcaloides-pirrolizidina-en-aliments-risc-ocult\/","title":{"rendered":"Alcaloides de la pirrolizidina en aliments, un risc ocult al camp"},"content":{"rendered":"<p>Els<strong> alcaloides de la pirrolizidina<\/strong> s\u00f3n un grup de subst\u00e0ncies qu\u00edmiques presents en plantes de manera natural com a defensa contra herb\u00edvors, insectes o microorganismes com els fongs i bacteris. Fins ara, se n\u2019han identificat m\u00e9s de 600 i se sap que s\u00f3n produ\u00efts per m\u00e9s de 6.000 esp\u00e8cies de plantes arreu del m\u00f3n, majorit\u00e0riament per cinc fam\u00edlies: <em>Asteraceae<\/em>, <em>Boraginaceae<\/em>, <em>Fabaceae<\/em>, <em>Orchidaceae<\/em> i <em>Apocynaceae<\/em>.<br \/>\n<!--more--><\/p>\n<figure id=\"attachment_101951\" aria-describedby=\"caption-attachment-101951\" style=\"width: 1000px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-101951 size-full\" src=\"https:\/\/www.bioecoactual.com\/wp-content\/uploads\/2025\/04\/Alcaloides-2.jpg\" alt=\"Alcaloides \" width=\"1000\" height=\"664\" srcset=\"https:\/\/www.bioecoactual.com\/wp-content\/uploads\/2025\/04\/Alcaloides-2.jpg 1000w, https:\/\/www.bioecoactual.com\/wp-content\/uploads\/2025\/04\/Alcaloides-2-768x510.jpg 768w, https:\/\/www.bioecoactual.com\/wp-content\/uploads\/2025\/04\/Alcaloides-2-633x420.jpg 633w, https:\/\/www.bioecoactual.com\/wp-content\/uploads\/2025\/04\/Alcaloides-2-696x462.jpg 696w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><figcaption id=\"caption-attachment-101951\" class=\"wp-caption-text\">123RFLimited\u00a9nikolaydonetsk. Vi de primavera casol\u00e0 de flors de dent de lle\u00f3 (fam\u00edlia de les aster\u00e0cies)<\/figcaption><\/figure>\n<p>Estar exposat a aquests qu\u00edmics pot comportar efectes adversos tant per als humans com per als animals. Per a donar lloc a efectes negatius al nostre cos, els <strong>alcaloides de la pirrolizidina<\/strong> primer han de sotmetre\u2019s a biotransformacions, \u00e9s a dir, passar per m\u00faltiples reaccions qu\u00edmiques a dins del nostre organisme. Aquestes reaccions poden portar a diferents resultats, des de l\u2019excreci\u00f3 via orina fins a l\u2019activaci\u00f3 i desencadenament d\u2019efectes t\u00f2xics. Tota aquesta activitat es duu a terme principalment al fetge.<\/p>\n<p>La gran diversitat estructural d\u2019aquests alcaloides t\u00e9 una influ\u00e8ncia directa sobre la seva toxicitat, ja que no tots en tenen la mateixa. Cada tipus d\u2019alcaloide es comporta d\u2019una manera diferent dins del cos, i aix\u00f2 pot provocar que alguns s\u2019absorbeixin amb menor o major proporci\u00f3. Actualment, s\u2019estudia la pres\u00e8ncia i distribuci\u00f3 d\u2019aquests compostos en detall per a millorar els protocols de seguretat i recomanacions.<\/p>\n<p>La pres\u00e8ncia d\u2019aquestes subst\u00e0ncies en aliments pot oc\u00f3rrer de manera no intencionada. Alguns exemples podrien ser la mel o els suplements alimentaris, on hi poden acabar arribant per vies molt diverses. Per exemple, les abelles poden recollir pol\u00b7len de plantes contaminades, i per tant aquests poden acabar en la mel. Un altre exemple serien les infusions o el t\u00e9, on hi poden acabar de manera accidentada a causa de la recol\u00b7lecci\u00f3 conjunta amb fulles contaminades. En aquest sentit, <strong>les bones pr\u00e0ctiques agr\u00edcoles son un element clau per a evitar la pres\u00e8ncia d\u2019aquests contaminants<\/strong>.<\/p>\n<blockquote><p>La pres\u00e8ncia d\u2019aquestes subst\u00e0ncies en aliments pot oc\u00f3rrer de manera no intencionada<\/p><\/blockquote>\n<p>L\u2019Autoritat Europea de Seguretat Aliment\u00e0ria (EFSA), ha avaluat el risc dels alcaloides de la pirrolizidina en diverses ocasions en diferents productes alimentaris. Aquests estudis analitzen, entre d\u2019altres, el nivell d\u2019exposici\u00f3 de la poblaci\u00f3 a aquestes subst\u00e0ncies per tal d\u2019avaluar-ne el risc associat. Una de les conclusions m\u00e9s importants a destacar d\u2019aquests estudis \u00e9s que hi ha una categoria qu\u00edmica en particular d\u2019aquests compostos que resulta d\u2019especial preocupaci\u00f3: els anomenats 1,2-insaturats. Aquests s\u2019investiguen, per tant, amb especial atenci\u00f3.<\/p>\n<figure id=\"attachment_101948\" aria-describedby=\"caption-attachment-101948\" style=\"width: 1000px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-101948 size-full\" src=\"https:\/\/www.bioecoactual.com\/wp-content\/uploads\/2025\/04\/Alcaloides-1.jpg\" alt=\"Alcaloides \" width=\"1000\" height=\"667\" srcset=\"https:\/\/www.bioecoactual.com\/wp-content\/uploads\/2025\/04\/Alcaloides-1.jpg 1000w, https:\/\/www.bioecoactual.com\/wp-content\/uploads\/2025\/04\/Alcaloides-1-768x512.jpg 768w, https:\/\/www.bioecoactual.com\/wp-content\/uploads\/2025\/04\/Alcaloides-1-630x420.jpg 630w, https:\/\/www.bioecoactual.com\/wp-content\/uploads\/2025\/04\/Alcaloides-1-696x464.jpg 696w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><figcaption id=\"caption-attachment-101948\" class=\"wp-caption-text\">123RFLimited\u00a9boomeart. Preparant hummus de cigrons (fam\u00edlia de les fabaceae)<\/figcaption><\/figure>\n<p>Una gran exposici\u00f3 a aquests alcaloides por provocar efectes a curt termini, \u00e9s a dir, efectes aguts. Una de les conseq\u00fc\u00e8ncies m\u00e9s destacades \u00e9s el desencadenament de malalties hep\u00e0tiques com la malaltia veno-oclusiva, que pot comprometre la funci\u00f3 del fetge. Aix\u00f2 s\u2019ha vist reflectit en brots registrats a pa\u00efsos com Pakistan o \u00cdndia, associats al consum de cereals contaminats amb aquests alcaloides. D\u2019altra banda, en cas d\u2019exposici\u00f3 prolongada o cr\u00f2nica, tant ag\u00e8ncies de seguretat aliment\u00e0ria com m\u00faltiples estudis cient\u00edfics han advertit del seu potencial de carcinog\u00e8nesi, \u00e9s a dir, capacitat d\u2019afavorir el desenvolupament de c\u00e0ncers.<\/p>\n<p>Per determinar el perill que representen els alcaloides de la pirrolizidina en els aliments, els experts utilitzen molts enfocaments diferents buscant assegurar la seguretat de les persones m\u00e9s vulnerables: el principi \u00e9s garantir la seguretat dels m\u00e9s vulnerables i aix\u00ed protegir a tota la poblaci\u00f3. Des de les primeres advert\u00e8ncies al perill d\u2019aquestes subst\u00e0ncies per l\u2019Organitzaci\u00f3 Mundial de la Salut (OMS) al 1988, fins a dia d\u2019avui, aquesta problem\u00e0tica s\u2019ha estudiat arreu del mon. Aix\u00f2 ha donat lloc a noves normatives, com per exemple a la Uni\u00f3 Europea, on <strong>des del 2022 a Europa existeixen l\u00edmits m\u00e0xims permesos de alcaloides pirrolizid\u00ednics per a diverses categories d\u2019aliments<\/strong>.<\/p>\n<blockquote><p>Mantenir controls oficials regulars i adoptar pr\u00e0ctiques agr\u00edcoles responsables contribueix a la salut mediambiental i assegura la protecci\u00f3 a les persones<\/p><\/blockquote>\n<p>Gr\u00e0cies a la recerca cient\u00edfica i les regulacions aliment\u00e0ries, cada vegada tenim m\u00e9s eines per controlar-ne la pres\u00e8ncia i minimitzar el risc per als consumidors. Evitar la contaminaci\u00f3 per alcaloides de la pirrolizidina \u00e9s fonamental per assegurar la seguretat dels aliments. Per aix\u00f2, cal que tots els actors implicats en la cadena de producci\u00f3 siguem conscients de la seva import\u00e0ncia i hi col\u00b7laborem. Factors com ara la dificultat d\u2019identificar les plantes que en produeixen fan que siguin necessaris els controls rigorosos que permetin identificar riscos i assegurar la seguretat dels nostres aliments. La millora en el desenvolupament de m\u00e8todes anal\u00edtics de detecci\u00f3 m\u00e9s efica\u00e7os en aliments, juntament amb l\u2019aplicaci\u00f3 de regulacions, contribueixen a garantir cada vegada m\u00e9s i de manera continua la seguretat dels nostres aliments.<\/p>\n<p>La <strong>rotaci\u00f3 de cultius<\/strong> \u00e9s una de les t\u00e8cniques m\u00e9s importants per a la producci\u00f3 agr\u00edcola. En particular, pel que fa a la producci\u00f3 ecol\u00f2gica, un dels elements clau \u00e9s la <strong>promoci\u00f3 de la biodiversitat<\/strong> en els sistemes agr\u00edcoles. Aquesta diversificaci\u00f3 en el cultiu ens permet mantenir m\u00e9s sota control les zones agr\u00edcoles, evitant el creixement de plantes productores d\u2019alcaloides pirrolizid\u00ednics. A m\u00e9s, en l\u2019<strong>agricultura ecol\u00f2gica<\/strong>, es promou el control mec\u00e0nic o manual de les males herbes, en vers de l\u2019\u00fas dels m\u00e8todes qu\u00edmics com els pesticides, fet pot ajudar a eliminar encara m\u00e9s efica\u00e7ment la pres\u00e8ncia de plantes productores de subst\u00e0ncies t\u00f2xiques.<\/p>\n<p>En conclusi\u00f3, mantenir controls oficials regulars i adoptar pr\u00e0ctiques agr\u00edcoles responsables no nom\u00e9s contribueix a la salut mediambiental, sin\u00f3 que tamb\u00e9 assegura la protecci\u00f3 a les persones. Gr\u00e0cies a aquests esfor\u00e7os, podem tenir la confian\u00e7a que els aliments que ens arriben a taula son cada vegada m\u00e9s segurs.<\/p>\n<p><strong>Autora:\u00a0<\/strong>Roser Fabr\u00e9s, Tecn\u00f2loga d&#8217;aliments<\/p>\n<p><a href=\"https:\/\/www.bioecoactual.com\/ca\/subscripcio\/\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>Subscriu-te<\/strong><\/a><strong> a la Newsletter i rep cada mes Bio Eco Actual gratis al teu correu<\/strong><\/p>\n<p><strong><em>Bio Eco Actual<\/em><\/strong>, <em>el teu mensual 100% ecol\u00f2gic<\/em><strong><br \/>\nLlegir <\/strong><a href=\"https:\/\/www.bioecoactual.com\/wp-content\/uploads\/2025\/03\/BioEcoActual_Abril_Catala_2025.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>Bio Eco Actual Abril 2025<\/strong><\/a><\/p>\n<p><iframe style=\"border: none; width: 100%; height: 520px;\" src=\"\/\/e.issuu.com\/embed.html?d=bioecoactual_abril_catala_2025&amp;hideIssuuLogo=true&amp;showOtherPublicationsAsSuggestions=true&amp;u=bioecoactual\" allowfullscreen=\"allowfullscreen\"> <\/iframe><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Els alcaloides de la pirrolizidina s&oacute;n un grup de subst&agrave;ncies qu&iacute;miques presents en plantes de manera natural com a defensa contra herb&iacute;vors, insectes o microorganismes com els fongs i bacteris. Fins ara, se n&rsquo;han identificat m&eacute;s de 600 i se sap que s&oacute;n produ&iuml;ts per m&eacute;s de 6.000 esp&egrave;cies de plantes arreu del m&oacute;n, majorit&agrave;riament [&hellip;]<\/p>\n","protected":false},"author":419,"featured_media":101952,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7166],"tags":[],"class_list":["post-101955","post","type-post","status-publish","format-standard","has-post-thumbnail","category-nutricio"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.0 (Yoast SEO v28.0) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Alcaloides de la pirrolizidina en aliments, un risc ocult al camp - Bio Eco Actual<\/title>\n<meta name=\"description\" content=\"Els alcaloides de la pirrolizidina s\u00f3n un grup de subst\u00e0ncies qu\u00edmiques presents en plantes de manera natural com a defensa contra herb\u00edvors,\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.bioecoactual.com\/ca\/2025\/04\/03\/alcaloides-pirrolizidina-en-aliments-risc-ocult\/\" \/>\n<meta property=\"og:locale\" content=\"ca_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Alcaloides de la pirrolizidina en aliments, un risc ocult al camp\" \/>\n<meta property=\"og:description\" content=\"Els alcaloides de la pirrolizidina s\u00f3n un grup de subst\u00e0ncies qu\u00edmiques presents en plantes de manera natural com a defensa contra herb\u00edvors,\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.bioecoactual.com\/ca\/2025\/04\/03\/alcaloides-pirrolizidina-en-aliments-risc-ocult\/\" \/>\n<meta property=\"og:site_name\" content=\"Bio Eco Actual\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/BioEcoActual\/\" \/>\n<meta property=\"article:published_time\" content=\"2025-04-03T06:56:30+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-04-03T07:03:41+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.bioecoactual.com\/wp-content\/uploads\/2025\/04\/Alcaloides-2.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1000\" \/>\n\t<meta property=\"og:image:height\" content=\"664\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Bio Eco Actual\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@bioecoactual\" \/>\n<meta name=\"twitter:site\" content=\"@bioecoactual\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Bio Eco Actual\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.bioecoactual.com\\\/ca\\\/2025\\\/04\\\/03\\\/alcaloides-pirrolizidina-en-aliments-risc-ocult\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.bioecoactual.com\\\/ca\\\/2025\\\/04\\\/03\\\/alcaloides-pirrolizidina-en-aliments-risc-ocult\\\/\"},\"author\":{\"name\":\"Bio Eco Actual\",\"@id\":\"https:\\\/\\\/www.bioecoactual.com\\\/#\\\/schema\\\/person\\\/43c1f0817cbc73f37ce66f2978084ceb\"},\"headline\":\"Alcaloides de la pirrolizidina en aliments, un risc ocult al camp\",\"datePublished\":\"2025-04-03T06:56:30+00:00\",\"dateModified\":\"2025-04-03T07:03:41+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.bioecoactual.com\\\/ca\\\/2025\\\/04\\\/03\\\/alcaloides-pirrolizidina-en-aliments-risc-ocult\\\/\"},\"wordCount\":1102,\"publisher\":{\"@id\":\"https:\\\/\\\/www.bioecoactual.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.bioecoactual.com\\\/ca\\\/2025\\\/04\\\/03\\\/alcaloides-pirrolizidina-en-aliments-risc-ocult\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.bioecoactual.com\\\/wp-content\\\/uploads\\\/2025\\\/04\\\/Alcaloides-2.jpg\",\"articleSection\":[\"Nutrici\u00f3\"],\"inLanguage\":\"ca-ES\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.bioecoactual.com\\\/ca\\\/2025\\\/04\\\/03\\\/alcaloides-pirrolizidina-en-aliments-risc-ocult\\\/\",\"url\":\"https:\\\/\\\/www.bioecoactual.com\\\/ca\\\/2025\\\/04\\\/03\\\/alcaloides-pirrolizidina-en-aliments-risc-ocult\\\/\",\"name\":\"Alcaloides de la pirrolizidina en aliments, un risc ocult al camp - 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