https://wiki.fkkt.uni-lj.si/index.php?action=history&feed=atom&title=KatehinKatehin - Revision history2026-04-08T10:33:20ZRevision history for this page on the wikiMediaWiki 1.39.3https://wiki.fkkt.uni-lj.si/index.php?title=Katehin&diff=4797&oldid=prevMarusah at 20:27, 12 December 20102010-12-12T20:27:26Z<p></p>
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</table>Marusahhttps://wiki.fkkt.uni-lj.si/index.php?title=Katehin&diff=4796&oldid=prevMarusah: Category:LEX2010-12-12T20:26:58Z<p><a href="/index.php/Category:LEX" title="Category:LEX">Category:LEX</a></p>
<p><b>New page</b></p><div>== Katehin ==<br />
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Katehin je '''antioksidativen''' '''polifenolski''' sekundarni rastlinski''' metabolit'''. Z izrazom katehini pogosto poimenujemo tudi sorodno družino '''flavonoidov''' in podskupino '''flavan-3-olov''' (oziroma preprosto flavanolov).<br />
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Ime Katehin izhaja iz kemijske družine '''Catechu''', kar je sok oziroma kuhan estrakt drevesa ''Acacia catechu''. Molekulska forumula je C15H14O6([[http://www.google.si/imgres?imgurl=http://upload.wikimedia.org/wikipedia/commons/f/f0/Catechin_structure.png&imgrefurl=http://commons.wikimedia.org/wiki/File:Catechin_structure.png&usg=__gdrJ3DLfBmOq0utIZxpdWbAgUA8=&h=634&w=1140&sz=5&hl=sl&start=0&sig2=_WYvmrFQ-9qdwOtPq8w-Ww&zoom=1&tbnid=a1WXPxwGlnl3FM:&tbnh=93&tbnw=167&ei=Vi0FTezpLMOEOoKhsZsE&prev=/images%3Fq%3Dcatechin%26um%3D1%26hl%3Dsl%26sa%3DN%26biw%3D1366%26bih%3D667%26tbs%3Disch:1&um=1&itbs=1&iact=hc&vpx=262&vpy=86&dur=12&hovh=167&hovw=301&tx=159&ty=98&oei=Vi0FTezpLMOEOoKhsZsE&esq=1&page=1&ndsp=32&ved=1t:429,r:1,s:0]]). Mešanice različnih enantiomerov lahko imenujemo (+/-) –katehin ali DL- katehin in (+/-) – epikatehin ali DL – epikatehin.<br />
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Tipi katehinov, ki jih najdemo v listih čajevca, so znani tudi kot '''katehin polifenoli'''. So del molekularne družine flavonoidov, ki so sekundarni rastlinski metaboliti. To pomeni, da niso ključnega pomena za rast rastline, vendar pa so pomembni za njeno zdravje. <br />
Najdemo ga lahko v listih čajevca ''Camellia sinensis'', kot tudi v drugih hranah, kot so rdeče vino, čokolada, jagode in jabolka. <br />
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Medicinske raziskave so razkrile dokaze, da so katehini koristni za zdravje tako ljudi kot rastlin. Z laboratorijskimi preiskavami so odkrili, da katehini, ki so prisotni v listih čajevca, preprečujejo rast rakastih celic ter aktivnost prostih radikalov - molekul, ki povzročajo celične poškodbe, katerih posledica je lahko rak. <br />
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== Viri ==<br />
http://en.wikipedia.org/wiki/Catechin<br />
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http://en.wikipedia.org/wiki/Flavan-3-ol<br />
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http://flavo.vtt.fi/catechins.htm<br />
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== Zunanje povezave ==<br />
http://www.scielo.cl/scielo.php?pid=s0716-97602004000200016&script=sci_arttext<br />
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http://commons.wikimedia.org/wiki/File:Catechin_structure.svg</div>Marusah