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Ugotavljanje varnosti in učinkovitosti funkcionalne hrane = Assessment of saftey and efficacy of functional foodsBogovič Matijašić, BojanaNa trgu je veliko izdelkov iz skupine funkcionalne hrane, ki obljubljajo potrošnikom kup pozitivnih učinkov na zdravje, čeprav za to ni zadostnih znanstvenih dokazov. Glede na to, ali je posamezna ... funkcionalna hrana namenjena široki potrošnji, posaeznim bolj ogroženim skupinam prebivalstva ali pa morda ciljani klinični uporabi pri preventivi ali zdravljenju določenih bolezni, je potrebno najti primeren pristop k preskušanju učinkovitosti take hrane. Povezavo med posameznimi sestavinami hrane in učinkom na telesne funkcije lahko dokazujemo z in vitro poskusi, na tkivnih kulturah, na živalskih modelih in v kliničnih oziroma prehranskih raziskavah na ljudeh. Pri ugotavljanju varnosti in primernih odmerkov si lahko pomagamo s smernicami,ki veljajo za zdravila, vendar jih je potrebno ustrezno prilagoditi glede na to, da imamo opravka s hrano. Skrbno moramo izbrati ustrezne kazalce pričakovanih pozitivnih učinkov na ciljano telesno funkcijo oziroma tveganja. Klinični preskusi morajo biti ustrezno kontrolirani (randomozirani, slepi in s placebom), pri čemer mora biti placebo po teksturi, izgledu in okusu podoben testni hrani. Pri probiotikih kot primeru funkcionalne hrane so nekateri učinki izbranih bakterij, na primer vpliv seva Lactobacillus rhamnosus GG na skrajšanje rotavirusne diareje in na stimulacijo imunskega sistema, že ustrezno znanstveno dokazani. Vse bolj se uveljavljajo tudi priporočila za testiranje novih probiotikov s stališča varne uporabe, ki vključujejo tako in vitro raziskovanje lastnosti sevov in produktov metabolizma, ugotavljanje invazivnosti in adhezije na tkivnih kulturah, ugotavljanje toksičnosti na živalskih modelih in klinične raziskave na ljudeh.Source: Funkcionalna hrana = Functional foods : 40 let živilstva (Str. 153-165)Type of material - conference contributionPublish date - 2001Language - slovenianCOBISS.SI-ID - 1202824
Author
Bogovič Matijašić, Bojana
Topics
prehrana ljudi |
funkcionalna živila |
varna hrana |
probiotiki |
klinične študije |
prehranske študije |
functional foods |
safety |
efficacy |
probiotics |
clinical studies |
nutrition studies
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Bogovič Matijašić, Bojana | 11150 |
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