\u010c\u00e1ste\u010dn\u011b ztu\u017een\u00e9 \u010di \u010d\u00e1ste\u010dn\u011b hydrogenovan\u00e9 tuky, kter\u00e9 jsou nejv\u011bt\u0161\u00edm zdrojem \u0161kodliv\u00fdch transmastn\u00fdch kyselin, by m\u011bly do t\u0159\u00ed let zmizet z tal\u00ed\u0159\u016f americk\u00fdch spot\u0159ebitel\u016f. Dne 16. \u010dervna leto\u0161n\u00edho roku toti\u017e vl\u00e1dn\u00ed agentura Food and Drug Administration (FDA) schv\u00e1lila jejich vy\u0159azen\u00ed ze seznamu potravin \u201eGenerally recognized as safe\u201c, tedy potravin, kter\u00e9 m\u016f\u017ee spot\u0159ebitel konzumovat bez rizika. Informuj\u00ed o tom Consumers Reports a server Consumerist.<\/p>\n
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\u010c\u00e1ste\u010dn\u011b ztu\u017een\u00e9 \u010di \u010d\u00e1ste\u010dn\u011b hydrogenovan\u00e9 tuky, kter\u00e9 jsou nejv\u011bt\u0161\u00edm zdrojem \u0161kodliv\u00fdch transmastn\u00fdch kyselin, by m\u011bly do t\u0159\u00ed let zmizet z tal\u00ed\u0159\u016f americk\u00fdch spot\u0159ebitel\u016f. Dne 16. \u010dervna leto\u0161n\u00edho roku toti\u017e vl\u00e1dn\u00ed agentura FDA schv\u00e1lila jejich vy\u0159azen\u00ed ze seznamu \u201eGenerally recognized as safe\u201c, tedy potravin, kter\u00e9 m\u016f\u017ee spot\u0159ebitel konzumovat bez rizika.<\/p>\n
V\u00fdroba \u010d\u00e1ste\u010dn\u011b ztu\u017een\u00fdch tuk\u016f takzvanou hydrogenac\u00ed je velmi levn\u00e1 a takto vyroben\u00e9 tuky tak\u00e9 v\u00fdznamn\u011b prodlu\u017euj\u00ed trvanlivost potravin, do nich\u017e jsou p\u0159id\u00e1ny. Vyvinuty byly na za\u010d\u00e1tku dvac\u00e1t\u00e9ho stolet\u00ed za \u00fa\u010delem nalezen\u00ed levn\u011bj\u0161\u00ed n\u00e1hra\u017eky m\u00e1sla a ztu\u017een\u00fdch tuk\u016f.<\/p>\n
Ne\u017e\u00e1douc\u00edm vedlej\u0161\u00edm produktem hydrogenace jsou ale transmastn\u00e9 kyseliny, kter\u00e9 mohou zp\u016fsobit kardiovaskul\u00e1rn\u00ed obt\u00ed\u017ee. Probl\u00e9m tkv\u00ed hlavn\u011b v tom, \u017ee zvy\u0161uj\u00ed hladinu \u201ezl\u00e9ho\u201c LDL cholesterolu a z\u00e1rove\u0148 sni\u017euj\u00ed hladinu \u201edobr\u00e9ho\u201c HDL cholesterolu. \u010c\u00e1ste\u010dn\u011b ztu\u017een\u00e9 tuky tak byly ve v\u00fdsledku je\u0161t\u011b \u0161kodliv\u011bj\u0161\u00ed ne\u017e tuky, kter\u00e9 m\u011bly nahradit. Podle americk\u00e9 feder\u00e1ln\u00ed agentury Center for Disease Control and Prevention zp\u016fsobuje konzumace transmastn\u00fdch kyselin ro\u010dn\u011b jen v USA a\u017e p\u011bt tis\u00edc \u00famrt\u00ed na n\u00e1sledky kardiovaskul\u00e1rn\u00edch onemocn\u011bn\u00ed.<\/p>\n
Ve sv\u011bt\u011b v\u010detn\u011b Spojen\u00fdch st\u00e1t\u016f je tak tendence od jejich pou\u017e\u00edv\u00e1n\u00ed upou\u0161t\u011bt. Ztu\u017een\u00e9 tuky se nyn\u00ed vyr\u00e1b\u011bj\u00ed hlavn\u011b esterifikac\u00ed, dra\u017e\u0161\u00ed metodou, p\u0159i n\u00ed\u017e vznik\u00e1 minimum ne\u017e\u00e1douc\u00edch vedlej\u0161\u00edch l\u00e1tek.<\/p>\n
T\u0159i roky jsou podle server Consumerist dostate\u010dnou dobou pro to, aby v\u00fdrobci z trhu st\u00e1hli i potraviny s dlouho trvanlivost\u00ed, jak\u00fdmi jsou t\u0159eba popcorn do mikrovlnky \u010di mra\u017een\u00e1 j\u00eddla. Chv\u00e1l\u00ed tak\u00e9, \u017ee od pou\u017e\u00edv\u00e1n\u00ed \u010d\u00e1ste\u010dn\u011b nasycen\u00fdch tuk\u016f a tedy transmastn\u00fdch kyselin upustil i posledn\u00ed \u0159et\u011bzec rychl\u00e9ho ob\u010derstven\u00ed, konkr\u00e9tn\u011b Long John Silver specializuj\u00edc\u00ed se na j\u00eddla z ryb a dar\u016f mo\u0159e.<\/p>\n
Zku\u0161enosti z Evropy \u0159\u00edkaj\u00ed, \u017ee z\u00e1kaz \u010di omezen\u00ed pou\u017e\u00edv\u00e1n\u00ed transmastn\u00fdch kyselin v potravin\u00e1\u0159stv\u00ed prosp\u00edv\u00e1 jak spot\u0159ebitel\u016fm, tak v\u00fdrobc\u016fm. Nap\u0159\u00edklad D\u00e1nsko omezilo povolen\u00e9 mno\u017estv\u00ed transmastn\u00fdch kyselin na dva gramy ve sto gramech v\u00fdrobku. Po zaveden\u00ed nov\u00e9 regulace se v\u00fdrazn\u011b zv\u00fd\u0161ila senzorick\u00e1 i nutri\u010dn\u00ed hodnota potravin, za co\u017e se v\u00fdrobci shledali s v\u00fdrazn\u011b pozitivn\u00ed odezvou. Podobn\u00e9 p\u0159edpisy plat\u00ed i v Rakousku. O omezen\u00ed povolen\u00e9ho mno\u017estv\u00ed transmastn\u00fdch kyselin v potravin\u00e1ch prod\u00e1van\u00fdch v \u010cesku se dlouhodob\u011b sna\u017e\u00ed dTest. Navzdory tomu v\u0161ak \u010de\u0161t\u00ed spot\u0159ebitel\u00e9 nejsou zat\u00edm p\u0159ed jejich \u00fa\u010dinky nijak legislativn\u011b chr\u00e1n\u011bni.<\/p>\n
<\/p>\n
Zdroj:\u00a0dTest<\/a><\/p>\n","protected":false},"excerpt":{"rendered":" \u010c\u00e1ste\u010dn\u011b ztu\u017een\u00e9 \u010di \u010d\u00e1ste\u010dn\u011b hydrogenovan\u00e9 tuky, kter\u00e9 jsou nejv\u011bt\u0161\u00edm zdrojem \u0161kodliv\u00fdch transmastn\u00fdch kyselin, by m\u011bly do t\u0159\u00ed let zmizet z tal\u00ed\u0159\u016f americk\u00fdch spot\u0159ebitel\u016f. Dne 16. \u010dervna leto\u0161n\u00edho roku toti\u017e vl\u00e1dn\u00ed agentura Food and Drug Administration [v\u00edc]<\/a><\/p>\n<\/div>","protected":false},"author":2,"featured_media":1084,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[80,88,109,112,122],"class_list":["post-30","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-zdravi","tag-onemocneni","tag-prevence","tag-transmastne-tuky","tag-tuky","tag-zdravi"],"views":3523,"_links":{"self":[{"href":"https:\/\/potravinyx.cz\/index.php?rest_route=\/wp\/v2\/posts\/30","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/potravinyx.cz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/potravinyx.cz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/potravinyx.cz\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/potravinyx.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=30"}],"version-history":[{"count":0,"href":"https:\/\/potravinyx.cz\/index.php?rest_route=\/wp\/v2\/posts\/30\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/potravinyx.cz\/index.php?rest_route=\/wp\/v2\/media\/1084"}],"wp:attachment":[{"href":"https:\/\/potravinyx.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=30"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/potravinyx.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=30"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/potravinyx.cz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=30"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}