{"id":246632,"date":"2022-02-07T19:40:57","date_gmt":"2022-02-07T18:40:57","guid":{"rendered":"http:\/\/zakrasnejsivimperk.cz\/?p=246632"},"modified":"2022-02-07T19:40:57","modified_gmt":"2022-02-07T18:40:57","slug":"dtest-nebezpecne-bile-barvivo-konci","status":"publish","type":"post","link":"https:\/\/zakrasnejsivimperk.cz\/?p=246632","title":{"rendered":"dTest: Nebezpe\u010dn\u00e9 b\u00edl\u00e9 barvivo kon\u010d\u00ed"},"content":{"rendered":"

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L\u00e1tku oxid titani\u010dit\u00fd je od 7. \u00fanora 2022 zak\u00e1z\u00e1no pou\u017e\u00edvat p\u0159i v\u00fdrob\u011b potravin. B\u00edl\u00e9 barvivo (E 171) je jedn\u00edm z nejdiskutovan\u011bj\u0161\u00edch \u201e\u00e9\u010dek\u201c posledn\u00edch let. A\u010dkoliv se l\u00e1tka p\u0159id\u00e1van\u00e1 nap\u0159. do \u017ev\u00fdka\u010dek a cukrovinek pou\u017e\u00edv\u00e1 u\u017e velmi dlouho, pochyby o jej\u00ed zdravotn\u00ed nez\u00e1vadnosti se objevily p\u0159ed \u0161esti lety.<\/h6>\n

\"\"Podle z\u00e1v\u011br\u016f v\u011bdeck\u00fdch studi\u00ed nelze vylou\u010dit, \u017ee se E 171 v lidsk\u00e9m organismu m\u016f\u017ee chovat genotoxicky. Evropsk\u00e1 komise proto v lednu vydala z\u00e1kaz tohoto potravin\u00e1\u0159sk\u00e9ho aditiva. Komise ponechala v\u00fdrobc\u016fm p\u016fl roku na to, aby mohli na na\u0159\u00edzen\u00ed reagovat. Po 7. srpnu ale bude mo\u017en\u00e9 jen doprodat ji\u017e vyroben\u00e9 z\u00e1soby.<\/p>\n

Oxidu titani\u010dit\u00e9mu m\u016f\u017eeme p\u0159ipsat \u0159adu zaj\u00edmav\u00fdch vlastnost\u00ed, nap\u0159\u00edklad velmi dob\u0159e odr\u00e1\u017e\u00ed sv\u011btlo a bez jak\u00fdchkoliv probl\u00e9m\u016f pohlcuje UV z\u00e1\u0159en\u00ed. D\u00edky tomu se pou\u017e\u00edv\u00e1 jako b\u00edl\u00fd pigment p\u0159i v\u00fdrob\u011b barev nebo jako UV filtr v opalovac\u00edch kr\u00e9mech. N\u011bkolik desetilet\u00ed se pod k\u00f3dem E 171 pou\u017e\u00edval i coby b\u00edl\u00e9 potravin\u00e1\u0159sk\u00e9 barvivo. P\u0159esto\u017ee nebyl oxid titani\u010dit\u00fd v potravin\u00e1ch \u017e\u00e1dnou novinkou, trvaly evropsk\u00e9 p\u0159edpisy o potravin\u00e1\u0159sk\u00fdch aditivech na op\u011btovn\u00e9m posouzen\u00ed jeho bezpe\u010dnosti. T\u00edm toti\u017e mus\u00ed proj\u00edt v\u0161echna \u00e9\u010dka pou\u017e\u00edvan\u00e1 p\u0159ed rokem 2009, kdy za\u010dala platit sou\u010dasn\u00e1 legislativa.<\/p>\n

Opakovan\u00e9 posouzen\u00ed zdravotn\u00ed nez\u00e1vadnosti oxidu titani\u010dit\u00e9ho v roce 2016 Evropsk\u00fdm \u00fa\u0159adem pro bezpe\u010dnost potravin (EFSA) oxid titani\u010dit\u00fd za povolen\u00fdch podm\u00ednek neozna\u010dil za zdravotn\u00ed riziko. \u201eNicm\u00e9n\u011b v\u011bdci v posudku upozornili, \u017ee k jasn\u00fdm z\u00e1v\u011br\u016fm je t\u0159eba doplnit dal\u0161\u00ed toxikologick\u00e9 zkou\u0161ky a tak\u00e9 p\u0159esn\u011b definovat, z jak velk\u00fdch \u010d\u00e1stic se oxid titani\u010dit\u00fd skl\u00e1d\u00e1,\u201c<\/em> popsala prvn\u00ed pochybnosti o nez\u00e1vadnosti oxidu titani\u010dit\u00e9ho \u0161\u00e9fredaktorka \u010dasopisu dTest Hana Hoffmannov\u00e1.<\/p>\n

Pr\u00e1v\u011b velikost \u010d\u00e1stic titanov\u00e9ho pigmentu se uk\u00e1zala jako probl\u00e9m. Oxid titani\u010dit\u00fd se z t\u011bla kompletn\u011b nevylou\u010d\u00ed, ale ve velmi mal\u00e9m mno\u017estv\u00ed (do 0,1 %) se m\u016f\u017ee vst\u0159ebat do organismu. Evropsk\u00e9 \u00fa\u0159ady omezily pod\u00edl nanomateri\u00e1lu ve slo\u017een\u00ed barviva E 171. Dodate\u010dn\u00e9 v\u011bdeck\u00e9 posouzen\u00ed v roce 2021 v\u0161ak nevylou\u010dilo zdravotn\u00ed rizika a p\u0159ineslo z\u00e1sadn\u00ed z\u00e1v\u011br: barvivo E 171 ji\u017e nelze pova\u017eovat ze bezpe\u010dn\u00e9 potravin\u00e1\u0159sk\u00e9 aditivum. \u201eD\u016fvodem byly p\u0159edev\u0161\u00edm mo\u017en\u00e9 genotoxick\u00e9 \u00fa\u010dinky nano\u010d\u00e1stic oxidu titani\u010dit\u00e9ho. N\u011bkolik experiment\u00e1ln\u00edch studi\u00ed toti\u017e potvrdilo jeho \u00fa\u010dast na zm\u011bn\u00e1ch DNA v r\u016fzn\u00fdch typech bun\u011bk, co\u017e by mohlo v\u00e9st k v\u00fdvojov\u00fdm poruch\u00e1m plod\u016f, p\u0159\u00edpadn\u011b k rozvoji n\u00e1dorov\u00fdch onemocn\u011bn\u00ed,\u201c<\/em> uvedla Hoffmannov\u00e1.<\/p>\n

Evropsk\u00e9 komise dne 14. ledna 2022 vydala na\u0159\u00edzen\u00ed, kter\u00fdm se od 7. \u00fanora 2022 potravin\u00e1\u0159sk\u00e9 aditivum E 171 zakazuje. Po dobu \u0161esti m\u011bs\u00edc\u016f v\u0161ak je\u0161t\u011b plat\u00ed p\u0159echodn\u00e9 obdob\u00ed, ve kter\u00e9m bude mo\u017en\u00e9 vyr\u00e1b\u011bt potraviny podle star\u00fdch pravidel. S oxidem titani\u010dit\u00fdm se v\u0161ak spot\u0159ebitel\u00e9 budou potk\u00e1vat i nad\u00e1le, pou\u017e\u00edv\u00e1 se toti\u017e i p\u0159i v\u00fdrob\u011b l\u00e9\u010div. Evropsk\u00e1 l\u00e9kov\u00e1 agentura EMA zat\u00edm tuto l\u00e1tku nezak\u00e1zala, jeliko\u017e farmaceuti za ni zat\u00edm nemaj\u00ed plnohodnotnou n\u00e1hradu.<\/p>\n

V katalogu \u00e9\u010dek<\/strong><\/a> na str\u00e1nk\u00e1ch dTestu naleznete v\u0161echna \u00e9\u010dka, kter\u00e1 jsou pro pou\u017eit\u00ed v potravin\u00e1ch povolena, nebo naopak zak\u00e1z\u00e1na.<\/p>\n

dTest<\/strong><\/p>\n

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  L\u00e1tku <\/p>\n","protected":false},"author":2,"featured_media":246635,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"gallery","meta":{"footnotes":""},"categories":[87],"tags":[],"jetpack_featured_media_url":"https:\/\/zakrasnejsivimperk.cz\/wp-content\/uploads\/2022\/02\/07\/r\u00e1me\u010dek-dtest.jpg","_links":{"self":[{"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=\/wp\/v2\/posts\/246632"}],"collection":[{"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=246632"}],"version-history":[{"count":1,"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=\/wp\/v2\/posts\/246632\/revisions"}],"predecessor-version":[{"id":246634,"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=\/wp\/v2\/posts\/246632\/revisions\/246634"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=\/wp\/v2\/media\/246635"}],"wp:attachment":[{"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=246632"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=246632"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=246632"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}