{"id":103814,"date":"2026-06-21T13:07:08","date_gmt":"2026-06-21T13:07:08","guid":{"rendered":"https:\/\/www.europesays.com\/sk\/103814\/"},"modified":"2026-06-21T13:07:08","modified_gmt":"2026-06-21T13:07:08","slug":"vedci-odhaluju-ci-je-jedlo-po-pade-na-zem-este-bezpecne","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/sk\/103814\/","title":{"rendered":"Vedci odha\u013euj\u00fa, \u010di je jedlo po p\u00e1de na zem e\u0161te bezpe\u010dn\u00e9"},"content":{"rendered":"

LOND\u00ddN \u2013 Pozn\u00e1me to v\u0161etci. S pravidlom piatich sek\u00fand sme sa stretli po prv\u00fdkr\u00e1t e\u0161te ako mal\u00e9 deti. Ke\u010f n\u00e1m jedlo spadlo na zem a do piatich sek\u00fand sme ho e\u0161te stihli zdvihn\u00fa\u0165 zo zeme, mohli sme pokojne jes\u0165 \u010falej. Ale je to skuto\u010dne tak? <\/p>\n

Ke\u010f n\u00e1m jedlo spadne na zem, mnoho \u013eud\u00ed stoj\u00ed pred ve\u013ekou dilemou. Ke\u010f ho zoberiem do r\u00fak, je e\u0161te bezpe\u010dn\u00e9 ho \u010falej konzumova\u0165, alebo nie? Pritom pravidlo piatich sek\u00fand pozn\u00e1 asi ka\u017ed\u00fd. Pod\u013ea t\u00fdch, ktor\u00ed tomu veria, je 5 sek\u00fand hranica, kedy je e\u0161te v\u0161etko v poriadku a na jedlo sa nedostali \u017eiadne bakt\u00e9rie. Inak povedan\u00e9, predmet sa e\u0161te nestihol kontaminova\u0165.\u00a0<\/p>\n

Odvolanie sana tri \u0161t\u00fadie<\/p>\n

Vedci ale prich\u00e1dzaj\u00fa s nov\u00fdm zisten\u00edm, ktor\u00e9 mnoho \u013eud\u00ed sklame. Profesor imunol\u00f3gie z Imperial College v Lond\u00fdne, John Tregoning, sa odvol\u00e1va na tri \u0161t\u00fadie, ktor\u00e9 sa zaoberali pr\u00e1ve touto te\u00f3riou. Informuje o tom The Guardian.<\/a>\u00a0<\/p>\n

1. R\u00f4zne povrchy<\/p>\n

Najprv vedci sk\u00famali, \u010do sa stane s jedlom, ke\u010f padne na r\u00f4zne povrchy. Chlieb s maslom, gumov\u00e9 medved\u00edky alebo zeleninu vysk\u00fa\u0161ali hodi\u0165 na kachli\u010dky, drevo, oce\u013e alebo koberec. \u201eBakt\u00e9rie sa preniesli na predmety takmer okam\u017eite, pri\u010dom najviac sa kontaminovali vlhk\u00e9 predmety ako mel\u00f3n,\u201c prezradil profesor.\u00a0<\/p>\n

\t
\n\t\t\"Vedci\t\t\t<\/p>\n

\n\t\t\t\tZobrazi\u0165 gal\u00e9riu (2)\t\t\t<\/p>\n

\t<\/a><\/p>\n

\t\u00a0(Zdroj: Getty Images)<\/p>\n

2. Kontamin\u00e1cia varen\u00e9ho\/pe\u010den\u00e9ho jedla\u00a0<\/p>\n

V druhej \u0161t\u00fadii sa sk\u00famalo varen\u00e9 jedlo. Tam prebehne kontamin\u00e1cia aj vtedy, ke\u010f sa bakt\u00e9rie dostan\u00fa na povrch nieko\u013eko hod\u00edn predt\u00fdm. „Ke\u010f kontaminovan\u00e9 varen\u00e9\/pe\u010den\u00e9 kur\u010da polo\u017e\u00edte na nejak\u00fd povrch a po dvoch hodin\u00e1ch tam pust\u00edte k\u00fasok chleba, st\u00e1le tu prebehne kontamin\u00e1cia. Bakt\u00e9rie tam zostan\u00fa aj 24 hod\u00edn,“ hovor\u00ed Tregoning.\u00a0<\/p>\n

3. Opera\u010dn\u00e1 s\u00e1la<\/p>\n

Tret\u00ed pokus sa t\u00fdkal zdravotn\u00edckych pom\u00f4cok, ktor\u00e9 padli na zem v opera\u010dnej s\u00e1le. I ke\u010f ide o ve\u013emi d\u00f4sledne kontrolovan\u00e9 miesto, pom\u00f4cky sa musia umy\u0165 \u0161istiacim prostriedkom, aby sa mohli \u010falej pou\u017e\u00edva\u0165.<\/p>\n

Tregoning to n\u00e1sledne zhrnul a povedal, \u017ee s jedlom, ktor\u00e9 n\u00e1m padne na zem, sa u\u017e m\u00f4\u017eeme rozl\u00fa\u010di\u0165. „Treba akceptova\u0165, \u017ee je u\u017e po \u0148om,“ dodal. A v tomto pr\u00edpade nepom\u00f4\u017ee ani opl\u00e1chnutie \u010distou vodou. Tak\u00fdto postup nezabezpe\u010d\u00ed odstr\u00e1nenie v\u0161etk\u00fdch bakt\u00e9rii.\u00a0<\/p>\n

Bakt\u00e9rie s\u00fa s\u00edce schopn\u00e9 kontaminova\u0165 spadnut\u00fd predmet za menej ako sekundu, ale ve\u013ea z\u00e1vis\u00ed aj od samotn\u00e9ho povrchu jedla. Ro\u017eok nemus\u00ed predstavova\u0165 tak ve\u013ek\u00e9 riziko, ako napr\u00edklad spadnut\u00fd mel\u00f3n.\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"LOND\u00ddN \u2013 Pozn\u00e1me to v\u0161etci. S pravidlom piatich sek\u00fand sme sa stretli po prv\u00fdkr\u00e1t e\u0161te ako mal\u00e9 deti.…\n","protected":false},"author":2,"featured_media":103815,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_share_on_mastodon":"0"},"categories":[8],"tags":[35473,7647,1920,33,35474,43,40,42,36,50,10885,49,48,35475,4134,6699],"class_list":["post-103814","post","type-post","status-publish","format-standard","has-post-thumbnail","category-svet","tag-5-sekund","tag-experti","tag-jedlo","tag-news","tag-pravidlo-piatich-sekund","tag-sk","tag-slovak","tag-slovencina","tag-spravy","tag-svet","tag-veda","tag-world","tag-world-news","tag-zdvihnutie-zo-zeme","tag-zem","tag-znecistenie"],"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@sk\/116788254934466913","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/posts\/103814","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/comments?post=103814"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/posts\/103814\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/media\/103815"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/media?parent=103814"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/categories?post=103814"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/tags?post=103814"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}