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2018, vol. 45, br. 2, str. 97-106
Uticaj perioda skladištenja na pojavu i raspodelu aflatoksina i plesni u zrnu kukuruza
aInstitut za prehrambene tehnologije, Novi Sad, Srbija
bUniverzitet u Novom Sadu, Poljoprivredni fakultet, Srbija
cUniversity of Belgrade, Institute of Public Health, Belgrade

e-adresajovana.kos@fins.uns.ac.rs
Projekat:
Razvoj i primena novih i tradicionalnih tehnologija u proizvodnji konkurentnih prehrambenih proizvoda sa dodatom vrednošću za evropsko i svetsko tržište - Stvorimo bogatstvo iz bogatstva Srbije (MPNTR - 46001)
Funkcionalni proizvodi na bazi žita namenjeni osobama sa metaboličkim poremećajima (MPNTR - 31029)

Ključne reči: zrno kukuruza; skladištenje; aflatoksini; Aspergillus flavus; ukupan broj plesni
Sažetak
Osnovni ciljevi ovog rada bili su da se ispita uticaj sedmomesečnog perioda skladištenja zrna kukuruza na pojavu aflatoksina, kao i da se ispita raspodela ukupnog broja plesni, vrste Aspergillus flavus i aflatoksina B1 u skladištenom kukuruzu. Prvi deo istraživanja obuhvatio je 700 uzoraka kukuruza, koji su sakupljani u periodu od oktobra 2012. godine do aprila 2013. godine. Pre skladištenja zrna kukuruza u silose, prisustvo aflatoksina detektovano je u čak 72% uzoraka. Tokom skladištenja kukuruza, u periodu od sedam meseci, uočene su promene u procentu kontaminiranih uzoraka, kao i u raspodeli koncentracija aflatoksina. Sa produživanjem perioda skladištenja, procenat nekontaminiranih uzoraka smanjio se sa 28% na 16%, dok se procenat uzoraka koji je sadržao aflatoksine u koncentracionom opsegu od 20 µg/kg do 50 µg/kg povećao tokom skladištenja sa 18% na 25%. U drugom delu istraživanja, ispitana su 32 uzorka zrna kukuruza iz četiri različita silosa. Dobijeni rezultati ukazali su da su plesni, A. flavus i aflatoksin B1 bili neravnomerno raspoređeni unutar svakog pojedinačnog silosa, i da su prema Dankanovom testu (p<0.05) utvrđene statistički značajne razlike za svaki ispitivani parametar. Unutar svakog silosa utvrđena je statistički značajna koorelacija (r=0.76 at p<0.05) između pojave mikobiota A. flavus i koncentracije aflatoksina B1. Rezultati dobijeni u ovom radu, kao i zabeležene klimatske promene sa kojima se Republika Srbija suočava poslednjih godina, ukazuju na stalnu potrebu za unapređenjem sistema u vezi sa prevencijom i kontrolom aflatoksina u zrnu kukuruza. Takođe, dobijeni rezultati mogu biti od velikog značaja za povećanje praktičnih znanja i veština iz navedene oblasti, kako u Srbiji, tako i u zemljama iz okruženja.
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O članku

jezik rada: engleski
vrsta rada: originalan članak
DOI: 10.5937/FFR1802097K
objavljen u SCIndeksu: 01.02.2019.
Creative Commons License 4.0

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