Naslov
Mycotoxin levels in Croatian brewer's and feed barley

Autori
Dodlek Šarkanj, Ivana ; Kovač, Tihomir ; Uršulin- Trstenjak, Natalija ; Šarkanj, Bojan

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Abstracts of the 6 th Croatian Congres of Toxicology with International Participation / Brčić Karačonji, I. ; Kopjar, N: - Zagreb : Institut za medicinska istraživanja i medicinu rada, 2021, 59-59

Skup
6th Croatian congress of toxicology with international participation (CROTOX 2021)

Mjesto i datum
Rabac, Hrvatska, 03.10.2021. - 06.10.2021

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
aflatoxins ; beer brewing ; deoxynivalenol ; ELISA ; zearalenone

Sažetak
Barley is a widely spread cereal sown for malting and brewing industry (Hordeum vulgare convar. distichum), and as feed (Hordeum vulgare convar. hexastihum). The main difference in chemical composition between those two is the protein content, which is higher in the latter. In the feed industry, maximum concentrations of the mycotoxins are regulated in EU, while maximum concentrations of mycotoxins in the malting and brewing industry are not regulated in the EU. In this study, we compared the concentrations of 10 samples of brewer’s and 10 samples of feed barley on following mycotoxins: aflatoxins (AFT), deoxynivalenol (DON), and zearalenone (ZEN), by using ELISA tests. All samples were collected in the harvest season 2019, which had a lot of rain in the barley flowering period, when cereals are susceptible to Fusarium attack. The analysis showed That DON was a prominent contaminant in both barleys with an average contamination level of 1011 µg/kg ; followed by ZEN with an average contamination level of 127 µg/kg, while aflatoxins were not detected. When comparing two types of barley by Mann-Whitney U test, there were no statistically significant differences, although feed barley had higher mean concentrations of both detected mycotoxins. In total six samples were exceeding maximum allowed concentrations for DON in raw cereals, and three samples were exceeding maximum allowed ZEN concentrations. Due to specific processing of brewer’s barley that includes malting, drying and mashing that increases Fusarium contamination, modification of DON (masking), and increases DON extraction rate, it is recommended to include beer into DON legislation.

Izvorni jezik
Engleski

Znanstvena područja
Prehrambena tehnologija

POVEZANOST RADA