{"id":291978,"date":"2023-11-25T13:18:10","date_gmt":"2023-11-25T12:18:10","guid":{"rendered":"https:\/\/zakrasnejsivimperk.cz\/?p=291978"},"modified":"2023-11-25T13:18:10","modified_gmt":"2023-11-25T12:18:10","slug":"dtest-slunecnicove-oleje-smazeni-uz-neni-tabu-ale-volba-spravneho-oleje-je-klicova","status":"publish","type":"post","link":"https:\/\/zakrasnejsivimperk.cz\/?p=291978","title":{"rendered":"dTest: Slune\u010dnicov\u00e9 oleje: Sma\u017een\u00ed u\u017e nen\u00ed tabu, ale volba spr\u00e1vn\u00e9ho oleje je kl\u00ed\u010dov\u00e1"},"content":{"rendered":"
O slune\u010dnicov\u00e9m oleji se m\u016f\u017eeme do\u010d\u00edst, \u017ee nen\u00ed vhodn\u00fd ke sma\u017een\u00ed. Tuto pravdu za\u010daly v posledn\u00edch letech nahlod\u00e1vat nov\u00e9 odr\u016fdy slune\u010dnic produkuj\u00edc\u00edch olej pozm\u011bn\u011bn\u00e9ho slo\u017een\u00ed. Spot\u0159ebitelsk\u00fd \u010dasopis dTest proto nechal otestovat i v\u00fdrobky z t\u011bchto nov\u00fdch odr\u016fd. V\u00fdsledky p\u0159in\u00e1\u0161ej\u00ed novou radu: na slune\u010dnicov\u00e9m oleji se d\u00e1 sma\u017eit, jen je pot\u0159eba vybrat ten spr\u00e1vn\u00fd.<\/h6>\n

\"\"Slune\u010dnicov\u00fdm olej\u016fm se \u010dasopis dTest v\u011bnoval naposledy p\u0159ed dev\u00edti lety. V\u00fdsledky tehdej\u0161\u00edho testov\u00e1n\u00ed byly jednozna\u010dn\u00e9 \u2013 klasick\u00fd slune\u010dnicov\u00fd olej se ke sma\u017een\u00ed a fritov\u00e1n\u00ed opravdu nehod\u00ed, p\u0159i teplot\u00e1ch vy\u0161\u0161\u00edch ne\u017e 175 stup\u0148\u016f vznikaj\u00ed ne\u017e\u00e1douc\u00ed rizikov\u00e9 l\u00e1tky, proto nelze tento zp\u016fsob pou\u017eit\u00ed doporu\u010dit.<\/p>\n

V leto\u0161n\u00edm testu ale tak jednozna\u010dn\u00fd z\u00e1v\u011br u\u017e u\u010dinit nelze. \u201eNa trhu se toti\u017e objevily oleje lisovan\u00e9 ze sem\u00ednek speci\u00e1ln\u00edch odr\u016fd slune\u010dnic ozna\u010den\u00fdch jako HOSO (High Oleic Sunflower Oil), tedy slune\u010dnicov\u00e9 oleje s vysok\u00fdm obsahem oxida\u010dn\u011b stabiln\u00ed kyseliny. Jejich spektrum mastn\u00fdch kyselin naopak sma\u017een\u00ed umo\u017e\u0148uje,\u201c<\/em> vysv\u011btluje Hana Hoffmannov\u00e1, \u0161\u00e9fredaktorka \u010dasopisu dTest.<\/p>\n

V obchodech se poda\u0159ilo sehnat 17 vzork\u016f, z nich\u017e 12 pat\u0159ilo ke klasick\u00fdm rafinovan\u00fdm olej\u016fm, dva byly oleje lisovan\u00e9 za studena a posledn\u00ed byla trojice speci\u00e1ln\u00edch HOSO olej\u016f. U nich konkr\u00e9tn\u011b se m\u016f\u017eete setkat s nejednotn\u00fdm ozna\u010den\u00edm. \u201eDva z nich se prod\u00e1valy jako oleje na pe\u010den\u00ed a sma\u017een\u00ed, posledn\u00ed sv\u00e9 speci\u00e1ln\u00ed vlastnosti uv\u00e1d\u011bl jen na zadn\u00ed stran\u011b obalu,\u201c<\/em> popisuje Hana Hoffmannov\u00e1 a dod\u00e1v\u00e1: \u201eV obchod\u011b n\u00e1m proto m\u016f\u017ee b\u00fdt vod\u00edtkem, \u017ee tyto oleje jsou o dost dra\u017e\u0161\u00ed ne\u017e b\u011b\u017en\u00e9 rafinovan\u00e9 slune\u010dnicov\u00e9 oleje.\u201c<\/em><\/p>\n

Jak se od sebe li\u0161\u00ed oby\u010dejn\u00e9 slune\u010dnicov\u00e9 oleje a ty ur\u010den\u00e9 p\u0159\u00edmo ke sma\u017een\u00ed? Rozd\u00edl je v mno\u017estv\u00ed mastn\u00fdch kyselin. Norm\u00e1ln\u00ed slune\u010dnicov\u00fd olej m\u00e1 zhruba 58% pod\u00edl omega-6 kyseliny linolov\u00e9, 27% pod\u00edl kyseliny olejov\u00e9 a 1,1% pod\u00edl nasycen\u00fdch kyselin. Oproti nim se HOSO oleje vyr\u00e1b\u011bj\u00ed ze slune\u010dnic vy\u0161lecht\u011bn\u00fdch k alespo\u0148 80% pod\u00edlu kyseliny olejov\u00e9, co\u017e potvrdila i laborato\u0159. Nam\u011b\u0159en\u00e9 v\u00fdsledky se u t\u0159\u00ed vzork\u016f pohybovaly od 80,8 % a\u017e po 86,7 %. Naopak typicky slune\u010dnicov\u00e1 kyselina linolov\u00e1 ve slo\u017een\u00ed p\u0159edstavovala mno\u017estv\u00ed do deseti procent a ni\u017e\u0161\u00ed byl i obsah mastn\u00fdch kyselin \u2013 v pr\u016fm\u011bru \u010dinil 9 %.<\/p>\n

Rozd\u00edly ve slo\u017een\u00ed se pak samoz\u0159ejm\u011b projevily i v praxi, a to hlavn\u011b v odolnosti v\u016f\u010di vysok\u00fdm teplot\u00e1m. Ta se zji\u0161\u0165uje prost\u0159ednictv\u00edm induk\u010dn\u00ed periody, kter\u00e1 \u0159\u00edk\u00e1, jak dlouho dok\u00e1\u017ee olej vzdorovat teplot\u011b 120 stup\u0148\u016f, ne\u017e se v n\u011bm za\u010dnou vytv\u00e1\u0159et peroxidov\u00e9 produkty \u017eluknut\u00ed. \u010c\u00edm del\u0161\u00ed doba induk\u010dn\u00ed periody, t\u00edm stabiln\u011bj\u0161\u00ed je olej. Aby byly v\u00fdsledky spravedliv\u00e9, hodnotily se ob\u011b kategorie olej\u016f podle rozd\u00edln\u00e9ho metru. Rekord m\u011b\u0159en\u00ed dr\u017e\u00ed bio nebio Slune\u010dnicov\u00fd olej panensk\u00fd se 17 hodinami, na opa\u010dn\u00e9 stran\u011b se um\u00edstil produkt zna\u010dky oleje Barto\u0161, kter\u00fd odol\u00e1val 1,6 hodiny. \u201eZkou\u0161ka uk\u00e1zala, \u017ee b\u011b\u017en\u00e9 rafinovan\u00e9 slune\u010dnicov\u00e9 oleje odol\u00e1valy 2,7 hodiny, zat\u00edmco HOSO nesrovnateln\u011b v\u00edce: 11,8 hodiny,\u201c<\/em> shrnuje \u0161\u00e9fredaktorka Hoffmannov\u00e1 a dopl\u0148uje: \u201eV na\u0161em posledn\u00edm testu dos\u00e1hl \u0159epkov\u00fd olej pr\u016fm\u011brn\u00e9 induk\u010dn\u00ed periody 5 hodin. Na sma\u017een\u00ed je tedy vhodn\u011bj\u0161\u00ed ne\u017e b\u011b\u017en\u00fd slune\u010dnicov\u00fd, ale tepelnou stabilitu HOSO nep\u0159ekon\u00e1.\u201c<\/em><\/p>\n

Oleje poch\u00e1zej\u00edc\u00ed z \u010desk\u00fdch, slovensk\u00fdch, srbsk\u00fdch i ukrajinsk\u00fdch slune\u010dnic \u010dekala v laborato\u0159i je\u0161t\u011b \u0159ada dal\u0161\u00edch zkou\u0161ek ov\u011b\u0159uj\u00edc\u00edch nap\u0159\u00edklad senzorickou kvalitu a (ne)p\u0159\u00edtomnost ne\u017e\u00e1douc\u00edch chemik\u00e1li\u00ed. Testy neodhalily \u017e\u00e1dn\u00fd z\u00e1va\u017en\u011bj\u0161\u00ed nedostatek a v celkov\u00e9m hodnocen\u00ed nepadla hor\u0161\u00ed ne\u017e uspokojiv\u00e1 zn\u00e1mka. Tu si nakonec odnesl Jas Oil Slune\u010dnicov\u00fd rafinovan\u00fd olej za senzorick\u00e9 hodnocen\u00ed a o n\u011bco hor\u0161\u00ed kondici.<\/p>\n

Mezi dal\u0161\u00ed oleje vhodn\u00e9 pro sma\u017een\u00ed pat\u0159\u00ed krom\u011b HOSO, \u0159epkov\u00e9ho oleje je\u0161t\u011b palmov\u00fd nebo rafinovan\u00fd olivov\u00fd olej, kter\u00fdm se dTest v minulosti tak\u00e9 v\u011bnoval. Kompletn\u00ed v\u00fdsledky aktu\u00e1ln\u00edho testu slune\u010dnicov\u00fdch olej\u016f jsou k dispozici na webov\u00fdch str\u00e1nk\u00e1ch<\/strong><\/a> spolu s n\u00e1kupn\u00edm pr\u016fvodcem.<\/p>\n

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

\n

 <\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

O slune\u010dnicov\u00e9m <\/p>\n","protected":false},"author":2,"featured_media":291980,"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\/2023\/11\/25\/ram-dtest.jpg","_links":{"self":[{"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=\/wp\/v2\/posts\/291978"}],"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=291978"}],"version-history":[{"count":1,"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=\/wp\/v2\/posts\/291978\/revisions"}],"predecessor-version":[{"id":291979,"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=\/wp\/v2\/posts\/291978\/revisions\/291979"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=\/wp\/v2\/media\/291980"}],"wp:attachment":[{"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=291978"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=291978"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=291978"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}