TY  - CONF
AU  - Keškić, Tanja
AU  - Gavrić, Miladin
AU  - Trikić, Stevo
AU  - Jokismović, Bojana
AU  - Knežević, Ana
PY  - 2018-11
UR  - http://r.istocar.bg.ac.rs/handle/123456789/951
AB  - Aflatoxin M1 (AFM1) is excreted into milk as the main metabolite of aflatoxin B1 and as
such it poses a potential risk to human health. Accordingly, the analysis of AFM1 in milk
and milk products is of great importance. The aim of this research was to investigate
the AFM1 level in different types of cheese (soft cheese, processed cheese, fresh cheese,
semi-hard cheese, parmesan, mozzarella, hard cheese) on the Serbian market. A total of 42
samples of cheese of different producers were collected from the domestic market. After
extraction with dichlor-methane, cheese samples were prepared and analysed by ELISA
test. Among the analysed 42 samples, 17 (40.5 %) were contaminated by AFM1 at levels
ranging from 156.0 ng/kg to 810.0 ng/kg. The 15 samples (35.7 % of the samples) were
contaminated by AFM1, at levels ranging from 54.0 ng/kg to 83.0 ng/kg and 10 samples
(23.8 % of the samples) had undetectable AFM1 levels (<50 ng/kg). Based on these results,
it could be concluded that 28.6 % (12/42) cheese samples had AFM1 concentration higher
than EU maximum level (250 ng/kg), with concentrations between 263.0 and 810.0 ng/kg.
The percentage of cheese samples with AFM1 levels exceeding the EU maximum AFM1
level was relatively high, indicating that the presence of AFM1 is still a big problem for
producers in Serbia. The testing of raw milk used for cheese production is important for
the protection of public health. Stricter measures should be taken to reach a satisfactory
level of concentration. In addition, optimum storage conditions for animal feed should be
provided, and animal feeding should be monitored for the presence of AFM1 and other
aflatoxins.
PB  - Hrvatska mljeksrska udruga
C3  - Book of abstracts 43. Croatian dairy experts symposium with international participation
T1  - Aflatoxin M1 contaminations in different types of cheese in Serbia
SP  - 75
EP  - 76
UR  - https://hdl.handle.net/21.15107/rcub_ristocar_951
ER  - 

@conference{
author = "Keškić, Tanja and Gavrić, Miladin and Trikić, Stevo and Jokismović, Bojana and Knežević, Ana",
year = "2018-11",
abstract = "Aflatoxin M1 (AFM1) is excreted into milk as the main metabolite of aflatoxin B1 and as
such it poses a potential risk to human health. Accordingly, the analysis of AFM1 in milk
and milk products is of great importance. The aim of this research was to investigate
the AFM1 level in different types of cheese (soft cheese, processed cheese, fresh cheese,
semi-hard cheese, parmesan, mozzarella, hard cheese) on the Serbian market. A total of 42
samples of cheese of different producers were collected from the domestic market. After
extraction with dichlor-methane, cheese samples were prepared and analysed by ELISA
test. Among the analysed 42 samples, 17 (40.5 %) were contaminated by AFM1 at levels
ranging from 156.0 ng/kg to 810.0 ng/kg. The 15 samples (35.7 % of the samples) were
contaminated by AFM1, at levels ranging from 54.0 ng/kg to 83.0 ng/kg and 10 samples
(23.8 % of the samples) had undetectable AFM1 levels (<50 ng/kg). Based on these results,
it could be concluded that 28.6 % (12/42) cheese samples had AFM1 concentration higher
than EU maximum level (250 ng/kg), with concentrations between 263.0 and 810.0 ng/kg.
The percentage of cheese samples with AFM1 levels exceeding the EU maximum AFM1
level was relatively high, indicating that the presence of AFM1 is still a big problem for
producers in Serbia. The testing of raw milk used for cheese production is important for
the protection of public health. Stricter measures should be taken to reach a satisfactory
level of concentration. In addition, optimum storage conditions for animal feed should be
provided, and animal feeding should be monitored for the presence of AFM1 and other
aflatoxins.",
publisher = "Hrvatska mljeksrska udruga",
journal = "Book of abstracts 43. Croatian dairy experts symposium with international participation",
title = "Aflatoxin M1 contaminations in different types of cheese in Serbia",
pages = "75-76",
url = "https://hdl.handle.net/21.15107/rcub_ristocar_951"
}

Keškić, T., Gavrić, M., Trikić, S., Jokismović, B.,& Knežević, A.. (2018-11). Aflatoxin M1 contaminations in different types of cheese in Serbia. in Book of abstracts 43. Croatian dairy experts symposium with international participation
Hrvatska mljeksrska udruga., 75-76.
https://hdl.handle.net/21.15107/rcub_ristocar_951

Keškić T, Gavrić M, Trikić S, Jokismović B, Knežević A. Aflatoxin M1 contaminations in different types of cheese in Serbia. in Book of abstracts 43. Croatian dairy experts symposium with international participation. 2018;:75-76.
https://hdl.handle.net/21.15107/rcub_ristocar_951 .

Keškić, Tanja, Gavrić, Miladin, Trikić, Stevo, Jokismović, Bojana, Knežević, Ana, "Aflatoxin M1 contaminations in different types of cheese in Serbia" in Book of abstracts 43. Croatian dairy experts symposium with international participation (2018-11):75-76,
https://hdl.handle.net/21.15107/rcub_ristocar_951 .

TY  - CONF
AU  - Keškić, Tanja
AU  - Miloradović, Zorana
AU  - Bandžov, Vladimir
AU  - Gavrić, Miladin
AU  - Puđa, Predrag
AU  - Miočinović, Jelena
PY  - 2016-10-25
UR  - http://r.istocar.bg.ac.rs/handle/123456789/947
AB  - Serbia has the largest dairy sector in the Balkan region, producing about 1.55 million tons of milk per year. However, farms are still very small and fragmented, with 600,000 cows on 220,000 farms, giving an average herd size of 2.7 animals. The composition of cows' milk is of the greatest importance for the dairy industry. Compositional parameters were of interest from a nutritive and a technological point of view. In this study, 5945 milk samples were collected in Srem district in Vojvodina and analysed during 5 years (2010-2014) for milk fat, protein and non fat dry matter contents. Statistical analysis and estimates of the significance of the variation due to month and season was performed with the Kruscal-Wallis test. The mean milk fat content was 3.85%, the protein content 3.23% and non fat dry matter 8.46%. All investigated parameters showed significant seasonal variation (p<0.01). As expected, all three parameters were the lowest during summer months while the highest values were found during winter. Factors influencing the composition of milk are numerous including cows breed, feeding systems, milking frequency and milking systems. Compared with a previous investigation (1976) of milk composition in same part of country, milk fat and non fat dry matter contents increased, while protein content stayed constant. Data from developed countries indicated a higher fat and protein contents meaning that there is space for improvement of milk quality in our country.
PB  - University of Novi Sad, Institute of Food Technology
C3  - Proceedings of III International Congress, "Food Technology, Quality and Safety"
T1  - Five years study of seasonal variations of milk composition
SP  - 455
EP  - 459
UR  - https://hdl.handle.net/21.15107/rcub_ristocar_947
ER  - 

@conference{
author = "Keškić, Tanja and Miloradović, Zorana and Bandžov, Vladimir and Gavrić, Miladin and Puđa, Predrag and Miočinović, Jelena",
year = "2016-10-25",
abstract = "Serbia has the largest dairy sector in the Balkan region, producing about 1.55 million tons of milk per year. However, farms are still very small and fragmented, with 600,000 cows on 220,000 farms, giving an average herd size of 2.7 animals. The composition of cows' milk is of the greatest importance for the dairy industry. Compositional parameters were of interest from a nutritive and a technological point of view. In this study, 5945 milk samples were collected in Srem district in Vojvodina and analysed during 5 years (2010-2014) for milk fat, protein and non fat dry matter contents. Statistical analysis and estimates of the significance of the variation due to month and season was performed with the Kruscal-Wallis test. The mean milk fat content was 3.85%, the protein content 3.23% and non fat dry matter 8.46%. All investigated parameters showed significant seasonal variation (p<0.01). As expected, all three parameters were the lowest during summer months while the highest values were found during winter. Factors influencing the composition of milk are numerous including cows breed, feeding systems, milking frequency and milking systems. Compared with a previous investigation (1976) of milk composition in same part of country, milk fat and non fat dry matter contents increased, while protein content stayed constant. Data from developed countries indicated a higher fat and protein contents meaning that there is space for improvement of milk quality in our country.",
publisher = "University of Novi Sad, Institute of Food Technology",
journal = "Proceedings of III International Congress, "Food Technology, Quality and Safety"",
title = "Five years study of seasonal variations of milk composition",
pages = "455-459",
url = "https://hdl.handle.net/21.15107/rcub_ristocar_947"
}

Keškić, T., Miloradović, Z., Bandžov, V., Gavrić, M., Puđa, P.,& Miočinović, J.. (2016-10-25). Five years study of seasonal variations of milk composition. in Proceedings of III International Congress, "Food Technology, Quality and Safety"
University of Novi Sad, Institute of Food Technology., 455-459.
https://hdl.handle.net/21.15107/rcub_ristocar_947

Keškić T, Miloradović Z, Bandžov V, Gavrić M, Puđa P, Miočinović J. Five years study of seasonal variations of milk composition. in Proceedings of III International Congress, "Food Technology, Quality and Safety". 2016;:455-459.
https://hdl.handle.net/21.15107/rcub_ristocar_947 .

Keškić, Tanja, Miloradović, Zorana, Bandžov, Vladimir, Gavrić, Miladin, Puđa, Predrag, Miočinović, Jelena, "Five years study of seasonal variations of milk composition" in Proceedings of III International Congress, "Food Technology, Quality and Safety" (2016-10-25):455-459,
https://hdl.handle.net/21.15107/rcub_ristocar_947 .

TY  - CONF
AU  - Keškić, Tanja
AU  - Miočinović, Jelena
AU  - Kos, Andrea
AU  - Gavrić, Miladin
AU  - Miloradović, Zorana
AU  - Puđa, Predrag
PY  - 2016-06-22
UR  - http://r.istocar.bg.ac.rs/handle/123456789/948
AB  - During the last two years, official regulations about aflatoxin M1 (AFM1) level in milk are
periodically changed. The cause of the variation in the concentration levels of AFM1 in milk during
different seasons. The Serbian Government does not have the required regulations for the level of
AFM1 in dairy products. The official regulations exist only for raw and heat treated milk.
The aim of this study was to monitor the level of AFM1 concentration in two groups of
commercial dairy products (fermented dairy products and milk drinks) during different seasons
(autumn, spring, winter and summer) in 2015 year. The level of AFM1 varied during the season and
the higher level of AFM1 recorded during the autumn, while during the summer period AFM1 level
is much lower. However, level of AFM1 in different seasons was not significantly different and
generally is much less than in previous years.
The study indicates that current level of AFM1 in fermented dairy products and milk drinks is
satisfactory. As it known, changes in the concentration of AFM1 in dairy products are a direct result
of changes in the concentration of AFM1 in raw milk. However, based on literature data and results
of this study it could be concluded that raw milk could be contaminated due to improper feed of
cows, but is not accepted by dairy processors. These results indicate that situation regarding safety
of dairy products has been improved, but still is essential to introduce monitoring programs for
primary milk producers in order to avoid their losses.
PB  - Scientific Institute of Veterinary Medicine of Serbia
C3  - Proceedings of Second International Symposium of Veterinary Medicine
T1  - Seasonal Variation Of Aflatoxin M1 In Dairy Products During 2015 In Serbia
SP  - 226
EP  - 232
UR  - https://hdl.handle.net/21.15107/rcub_ristocar_948
ER  - 

@conference{
author = "Keškić, Tanja and Miočinović, Jelena and Kos, Andrea and Gavrić, Miladin and Miloradović, Zorana and Puđa, Predrag",
year = "2016-06-22",
abstract = "During the last two years, official regulations about aflatoxin M1 (AFM1) level in milk are
periodically changed. The cause of the variation in the concentration levels of AFM1 in milk during
different seasons. The Serbian Government does not have the required regulations for the level of
AFM1 in dairy products. The official regulations exist only for raw and heat treated milk.
The aim of this study was to monitor the level of AFM1 concentration in two groups of
commercial dairy products (fermented dairy products and milk drinks) during different seasons
(autumn, spring, winter and summer) in 2015 year. The level of AFM1 varied during the season and
the higher level of AFM1 recorded during the autumn, while during the summer period AFM1 level
is much lower. However, level of AFM1 in different seasons was not significantly different and
generally is much less than in previous years.
The study indicates that current level of AFM1 in fermented dairy products and milk drinks is
satisfactory. As it known, changes in the concentration of AFM1 in dairy products are a direct result
of changes in the concentration of AFM1 in raw milk. However, based on literature data and results
of this study it could be concluded that raw milk could be contaminated due to improper feed of
cows, but is not accepted by dairy processors. These results indicate that situation regarding safety
of dairy products has been improved, but still is essential to introduce monitoring programs for
primary milk producers in order to avoid their losses.",
publisher = "Scientific Institute of Veterinary Medicine of Serbia",
journal = "Proceedings of Second International Symposium of Veterinary Medicine",
title = "Seasonal Variation Of Aflatoxin M1 In Dairy Products During 2015 In Serbia",
pages = "226-232",
url = "https://hdl.handle.net/21.15107/rcub_ristocar_948"
}

Keškić, T., Miočinović, J., Kos, A., Gavrić, M., Miloradović, Z.,& Puđa, P.. (2016-06-22). Seasonal Variation Of Aflatoxin M1 In Dairy Products During 2015 In Serbia. in Proceedings of Second International Symposium of Veterinary Medicine
Scientific Institute of Veterinary Medicine of Serbia., 226-232.
https://hdl.handle.net/21.15107/rcub_ristocar_948

Keškić T, Miočinović J, Kos A, Gavrić M, Miloradović Z, Puđa P. Seasonal Variation Of Aflatoxin M1 In Dairy Products During 2015 In Serbia. in Proceedings of Second International Symposium of Veterinary Medicine. 2016;:226-232.
https://hdl.handle.net/21.15107/rcub_ristocar_948 .

Keškić, Tanja, Miočinović, Jelena, Kos, Andrea, Gavrić, Miladin, Miloradović, Zorana, Puđa, Predrag, "Seasonal Variation Of Aflatoxin M1 In Dairy Products During 2015 In Serbia" in Proceedings of Second International Symposium of Veterinary Medicine (2016-06-22):226-232,
https://hdl.handle.net/21.15107/rcub_ristocar_948 .