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Contamination of maize kernels with mycotoxins after harvest

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2022
bitstream_4068.pdf (1.748Mb)
Authors
Obradović, Ana
Stanković, Slavica
Krnjaja, Vesna
Kostadinović, Marija
Ristić, Danijela
Jauković, Marko
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Abstract
The species of the genus Fusarium and Aspergillus are the most common pathogens of maize kernels worldwide. The most common species among them are F. verticillioides, F. graminearum and A. flavus. These fungi produce a wide spectrum of mycotoxins, among which the most common are fusariotoxins: trichothecenes-deoxynivalenol (DON), fumonisins (FBs) and aflatoxins: aflatoxin B1 (AFB1). The aim of this study was to examine the mycopopulation on maize kernels after harvest, as well as the concentration of their mycotoxins in kernels. Standard mycological examinations of maize kernels revealed the presence of toxigenic species of fungi from three genus, Fusarium, Aspergillus and Penicillium. In the examined samples, the species F. verticillioides was most often isolated in majority of hybrids, with a maximum incidence of 32%, while the presence of Aspergillus spp. was from 0 to 17%. Mycotoxicological analysis of maize kernels was performed by the ELISA method using a comme...rcial kit (Tecna S.r.l., Italy). All analysed samples were positive for the presence of at least one mycotoxin. The differences between the examined hybrids in the concentration of mycotoxins in the grain were statistically significant (P <0.001) for DON and FBs, but not for the content of AFB1. Likewise, the interaction between hybrids and localities was statistically significant (P <0.001) for DON and FBS content, while it was not statistically significant for AFB1 concentration. The average DON concentrations were 127,55 µg kg–1 , FBs 3050,21 µg kg–1 , and AFB1 2,98 µg kg–1 .

Keywords:
maize / deoxynivalenol / fumonisin / aflatoxin B1
Source:
Book of Abstracts of the XIII International Scientific Agriculture Symposium “AGROSYM 2022”, Jahorina, October 06 - 09, 2022, Bosnia and Herzegovina, 2022, 195-195

ISBN: 978-99976-987-2-8

[ Google Scholar ]
Handle
https://hdl.handle.net/21.15107/rcub_ristocar_795
URI
http://r.istocar.bg.ac.rs/handle/123456789/795
Collections
  • Radovi istraživača / Researchers' publications
Institution/Community
RIStocar
TY  - CONF
AU  - Obradović, Ana
AU  - Stanković, Slavica
AU  - Krnjaja, Vesna
AU  - Kostadinović, Marija
AU  - Ristić, Danijela
AU  - Jauković, Marko
PY  - 2022
UR  - http://r.istocar.bg.ac.rs/handle/123456789/795
AB  - The species of the genus Fusarium and Aspergillus are the most common pathogens of maize 
kernels worldwide. The most common species among them are F. verticillioides, F. 
graminearum and A. flavus. These fungi produce a wide spectrum of mycotoxins, among which 
the most common are fusariotoxins: trichothecenes-deoxynivalenol (DON), fumonisins (FBs) 
and aflatoxins: aflatoxin B1 (AFB1). The aim of this study was to examine the mycopopulation 
on maize kernels after harvest, as well as the concentration of their mycotoxins in kernels.
Standard mycological examinations of maize kernels revealed the presence of toxigenic species 
of fungi from three genus, Fusarium, Aspergillus and Penicillium. In the examined samples, the 
species F. verticillioides was most often isolated in majority of hybrids, with a maximum 
incidence of 32%, while the presence of Aspergillus spp. was from 0 to 17%. Mycotoxicological 
analysis of maize kernels was performed by the ELISA method using a commercial kit (Tecna 
S.r.l., Italy). All analysed samples were positive for the presence of at least one mycotoxin. The 
differences between the examined hybrids in the concentration of mycotoxins in the grain were 
statistically significant (P <0.001) for DON and FBs, but not for the content of AFB1. Likewise, 
the interaction between hybrids and localities was statistically significant (P <0.001) for DON 
and FBS content, while it was not statistically significant for AFB1 concentration. The average 
DON concentrations were 127,55 µg kg–1
, FBs 3050,21 µg kg–1
, and AFB1 2,98 µg kg–1
.
C3  - Book of Abstracts of the XIII International Scientific Agriculture Symposium “AGROSYM 2022”, Jahorina, October 06 - 09, 2022, Bosnia and Herzegovina
T1  - Contamination of maize kernels with mycotoxins after harvest
SP  - 195
EP  - 195
UR  - https://hdl.handle.net/21.15107/rcub_ristocar_795
ER  - 
@conference{
author = "Obradović, Ana and Stanković, Slavica and Krnjaja, Vesna and Kostadinović, Marija and Ristić, Danijela and Jauković, Marko",
year = "2022",
abstract = "The species of the genus Fusarium and Aspergillus are the most common pathogens of maize 
kernels worldwide. The most common species among them are F. verticillioides, F. 
graminearum and A. flavus. These fungi produce a wide spectrum of mycotoxins, among which 
the most common are fusariotoxins: trichothecenes-deoxynivalenol (DON), fumonisins (FBs) 
and aflatoxins: aflatoxin B1 (AFB1). The aim of this study was to examine the mycopopulation 
on maize kernels after harvest, as well as the concentration of their mycotoxins in kernels.
Standard mycological examinations of maize kernels revealed the presence of toxigenic species 
of fungi from three genus, Fusarium, Aspergillus and Penicillium. In the examined samples, the 
species F. verticillioides was most often isolated in majority of hybrids, with a maximum 
incidence of 32%, while the presence of Aspergillus spp. was from 0 to 17%. Mycotoxicological 
analysis of maize kernels was performed by the ELISA method using a commercial kit (Tecna 
S.r.l., Italy). All analysed samples were positive for the presence of at least one mycotoxin. The 
differences between the examined hybrids in the concentration of mycotoxins in the grain were 
statistically significant (P <0.001) for DON and FBs, but not for the content of AFB1. Likewise, 
the interaction between hybrids and localities was statistically significant (P <0.001) for DON 
and FBS content, while it was not statistically significant for AFB1 concentration. The average 
DON concentrations were 127,55 µg kg–1
, FBs 3050,21 µg kg–1
, and AFB1 2,98 µg kg–1
.",
journal = "Book of Abstracts of the XIII International Scientific Agriculture Symposium “AGROSYM 2022”, Jahorina, October 06 - 09, 2022, Bosnia and Herzegovina",
title = "Contamination of maize kernels with mycotoxins after harvest",
pages = "195-195",
url = "https://hdl.handle.net/21.15107/rcub_ristocar_795"
}
Obradović, A., Stanković, S., Krnjaja, V., Kostadinović, M., Ristić, D.,& Jauković, M.. (2022). Contamination of maize kernels with mycotoxins after harvest. in Book of Abstracts of the XIII International Scientific Agriculture Symposium “AGROSYM 2022”, Jahorina, October 06 - 09, 2022, Bosnia and Herzegovina, 195-195.
https://hdl.handle.net/21.15107/rcub_ristocar_795
Obradović A, Stanković S, Krnjaja V, Kostadinović M, Ristić D, Jauković M. Contamination of maize kernels with mycotoxins after harvest. in Book of Abstracts of the XIII International Scientific Agriculture Symposium “AGROSYM 2022”, Jahorina, October 06 - 09, 2022, Bosnia and Herzegovina. 2022;:195-195.
https://hdl.handle.net/21.15107/rcub_ristocar_795 .
Obradović, Ana, Stanković, Slavica, Krnjaja, Vesna, Kostadinović, Marija, Ristić, Danijela, Jauković, Marko, "Contamination of maize kernels with mycotoxins after harvest" in Book of Abstracts of the XIII International Scientific Agriculture Symposium “AGROSYM 2022”, Jahorina, October 06 - 09, 2022, Bosnia and Herzegovina (2022):195-195,
https://hdl.handle.net/21.15107/rcub_ristocar_795 .

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