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MIKOTOKSINI U ŽITARICAMA
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O mikotoksinimaMyces + toxicumSekundarni poluprodukti metaoli!m Aspergillus, Penicillium, Alternaria,Trichotechium,CladosporiuByssochlamys i Sclerotinia
#la$ni i!$ori kod l"udi %itarice
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Aspergillus Penicillium
Trichotechium Cladosporium Byssochlamys S
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&to po'odu"e mikotoksinimaNa"$e)a o$isnost o prirodnim u$"etim
*to su sadr%a" $la'e temperatura re$la%nost !raka p, $ri"ednost -+o*te)en"e !rna %itarice ili $la%nost prisutnost pli"esni u namirnici ne !na
prisutnost mikotoksina /
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M"ere su!i"an"a rasta pli"esn0red %et$eneŽet$ene0osli"e %et$ene
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U.inak mikotoksina na l"ude1epatotoksi.no ne2rotoksi.no karcino'
dermonekroti.no neurotoksi.noimunosupresi"sko i estro'eno d"elo$an"eS$aka pli"esan ni"e otro$na 3 s$e pli"esn
proi!$ode mikotoksine
stotin"ak $rsta pli"esni proi!$odi o$e otroprodukte4olesti u!roko$ane mikotoksinima "a$l"a
akutnom ili kroni.nom oliku i na!i$a"u mikotoksiko!e
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5RST6 MIKOTOKSINAa7atoksinokratoksintri1otecen
◦ T89 toksin◦ deoksini$alenol!earalenon::::
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A7atoksintoksi.ni produkti pli"esni Asper'illus prisutni u %itaricama krumpiru $o)u
ora*astom $o)u i 1rani %i$otin"sko' atmos2erske oscilaci"e i neadek$atno
skladi*ten"e ;$isoka $la'a i temperastailni pri $isoko" temperaturi7uorescira"u na ultral"ui.astom s$i"
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A7atoksin= 'la$na olika>
◦ 4?8 na""a.i prirodnikancero'en !a "etru
◦ 49◦ #?◦ #9o*te)u"u "etru i dru'e
or'ane te u!roku"u rak "etre kod mno'i1%i$otin"a
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Okratoksinsekundrani metaoliti
ko"e sinteti!ira"u pli"esniroda Asper'illus i0enicilliumOkratoksin A 3 $rlo
toksi.anOkratoksin 4
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Okratoksin A1ladni"a i um"erena klimatska podru."a ;
.ak i na =oC<nasta"e na %itaricama ;p*enici kukuru!u
ra%i 1el"di<pronaen i u ka$i pi$u su*enom $o)u $
i ora*astim plodo$imastailnost pri $isokim temperaturama 8 $
'a "e uklonititoksi.no d"elo$an"e na ure'e reprodu
susta$ i imunolo*ki susta$
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Tri1otecenNasta"e na %itaricama 3 p*enica ra%
ri%a$i"e strukture>
◦ T89◦ deoksini$alenon
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T89 toksin0li"esni i! roda usarium5rlo "aka citotoksi.na i imunosupres
s$o"st$aU!roku"e akutne intoksikaci"e i kroni
olesti kod l"udi i %i$otin"a
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eoksini$alenon0li"esni i! roda usarium 'raminerar
usarium culmorum0o'odu"u mu $la%na klima i tempera
9@ do 9JEC ako stailan5a%an !o' kontaminaci"e 1rane dil"
s$i"eta
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umono!iniFusarium verticillioides i Fusarium
proliferatumNa"!na.a"ni"i predsta$nik o$e 'rupe
umono!in 4?Na".e*)e se pronala!e u kukuru!uNisu prisutni u mli"eku "a"ima ili mes
%i$otin"a 1ran"enim 1ranom kontimin2umono!ina
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Analiti.ke metode u odrei$an"umikotoksina6LISA testo$i s odreenim antiti"elimimunoanitetne kolonekapilarna elektro2ore!akromato'ra2ske te1nike sa slo%eni"im
analiti.kim instrumentima ;#C86C
,0LC8AL LC8AC0I8MS<
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Bakl"u.akMikotoksini u malim koli.inama
predsta$l"a"u opasnost !a !dra$l"e %i$otin"a: ana*n"e preci!ne analitimetode toksikolo*ka ispiti$an"amikotoksina cil"ano pra)en"e unos
po"edini1 mikotoksina samo pot$rpotenci"alni ri!ik !a !dra$l"e: