Naslov
Two-year survey of the presence of aflatoxigenic and ochratoxigenic fungi in an experimental field in Osijek

Autori
Lončar, Jelena ; Kos, Tomislav ; Gašparović Pinto, Ana ; Zjalić, Slaven

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

Izvornik
Proceedings 58. hrvatski i 18. međunarodni simpozij agronoma Zbornik radova / Carović-Stanko, K ; Širić, I - Zagreb : Agronomski fakultet Sveučilišta u Zagrebu, 2023, 26-26

Skup
58. hrvatski i 18. međunarodni simpozij agronoma

Mjesto i datum
Dubrovnik, Hrvatska, 11.02.2023. - 17.02.2023

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
aflatoxigenic fungi, cereals, food safety, mycotoxigenic contamination, ochratoxigenic fungi

Sažetak
Mycotoxins are low-molecular-weight secondary metabolites synthesized by some filamentous fungi, toxic to animals and humans. As a contaminant, they can be found on different feed and foodstuffs, especially on cereal grains. Therefore, they pose a major problem worldwide. Within the project “Food production of biocomposites and cereals in a circular economy”, monitoring the occurrence of ochratoxigenic and aflatoxigenic fungi was carried out during a two-year survey in the experimental field in Osijek. Air sampling in the field was conducted during May, July and October of 2021 and 2022. Sampling was performed using an Air Sampler, which was adjusted so that the airflow through the Petri dishes for sampling was 100 L min-1. Two nutrient media ; Potatoe Dextrose Agar and Sabouraud Dextrose Agar, were used to isolate conidia from as many species of fungi present in the air as possible. Mycotoxigenic airborne molds in maize, wheat, and barley plantations, as well as in maize cobs were isolated and morphologically determined. Moreover, an assay of the ability of potential mycotoxigenic fungi to synthesize ochratoxin A and aflatoxin was performed. The results of the research are in accordance with the preliminary results of the first-year study, which showed the presence of both aflatoxigenic and ochratoxigenic fungi in the field with a percentage of occurrence of less than 10%. Analysis of the presence of aflatoxins and ochratoxin A in the harvested cereals is in the progress. Since the risk of contamination is present, it is necessary to continue monitoring in order to implement preventive control measures for aflatoxin and ochratoxin A contamination.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija), Biotehnologija

POVEZANOST RADA