TY  - JOUR
AU  - Lučić, Milica
AU  - Potkonjak, Nebojša
AU  - Sredović Ignjatović, Ivana
AU  - Lević, Steva
AU  - Dajić-Stevanović, Zora
AU  - Kolašinac, Stefan
AU  - Belović, Miona
AU  - Torbica, Aleksandra
AU  - Zlatanović, Ivan
AU  - Pavlović, Vladimir
AU  - Onjia, Antonije
PY  - 2023
UR  - https://www.mdpi.com/2304-8158/12/13/2468
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/6397
AB  - This study investigates the effects of ultrasound, in combination with chemical pretreatments, on the quality attributes (total phenolic and carotenoid content, antioxidant activity (2,2-Diphenyl-1-picrylhydrazyl assay (DPPH)), ferric-reducing ability (FRAP), CIE L* a* b* color, non-enzymatic browning, rehydration ratio, textural and morphological properties) of red pepper subjected to drying (hot air drying or freeze drying). The fractional factorial design was used to assess the impact of factors. The global Derringer desirability function was used to determine the optimal conditions for the best quality attributes of dried pepper. The drying method influenced total phenolic content, a* (redness), and initial rehydration ratio; pretreatment time significantly affected FRAP antiradical activity, a*, chroma and non-browning index, while pH-value had a significant effect on the texture of dried pepper. Non-enzymatic browning was reduced to 72.6%, while the DPPH antioxidant capacity of freeze-dried peppers was enhanced from 4.2% to 71.9%. Ultrasonic pretreatment led to changes in the pepper morphology, while potassium metabisulfite (KMS) was a more effective additive than citric acid.
T2  - Foods
T2  - Foods
T1  - Influence of Ultrasonic and Chemical Pretreatments on Quality Attributes of Dried Pepper (Capsicum annuum)
IS  - 13
SP  - 2468
VL  - 12
DO  - 10.3390/foods12132468
ER  - 

@article{
author = "Lučić, Milica and Potkonjak, Nebojša and Sredović Ignjatović, Ivana and Lević, Steva and Dajić-Stevanović, Zora and Kolašinac, Stefan and Belović, Miona and Torbica, Aleksandra and Zlatanović, Ivan and Pavlović, Vladimir and Onjia, Antonije",
year = "2023",
abstract = "This study investigates the effects of ultrasound, in combination with chemical pretreatments, on the quality attributes (total phenolic and carotenoid content, antioxidant activity (2,2-Diphenyl-1-picrylhydrazyl assay (DPPH)), ferric-reducing ability (FRAP), CIE L* a* b* color, non-enzymatic browning, rehydration ratio, textural and morphological properties) of red pepper subjected to drying (hot air drying or freeze drying). The fractional factorial design was used to assess the impact of factors. The global Derringer desirability function was used to determine the optimal conditions for the best quality attributes of dried pepper. The drying method influenced total phenolic content, a* (redness), and initial rehydration ratio; pretreatment time significantly affected FRAP antiradical activity, a*, chroma and non-browning index, while pH-value had a significant effect on the texture of dried pepper. Non-enzymatic browning was reduced to 72.6%, while the DPPH antioxidant capacity of freeze-dried peppers was enhanced from 4.2% to 71.9%. Ultrasonic pretreatment led to changes in the pepper morphology, while potassium metabisulfite (KMS) was a more effective additive than citric acid.",
journal = "Foods, Foods",
title = "Influence of Ultrasonic and Chemical Pretreatments on Quality Attributes of Dried Pepper (Capsicum annuum)",
number = "13",
pages = "2468",
volume = "12",
doi = "10.3390/foods12132468"
}

Lučić, M., Potkonjak, N., Sredović Ignjatović, I., Lević, S., Dajić-Stevanović, Z., Kolašinac, S., Belović, M., Torbica, A., Zlatanović, I., Pavlović, V.,& Onjia, A.. (2023). Influence of Ultrasonic and Chemical Pretreatments on Quality Attributes of Dried Pepper (Capsicum annuum). in Foods, 12(13), 2468.
https://doi.org/10.3390/foods12132468

Lučić M, Potkonjak N, Sredović Ignjatović I, Lević S, Dajić-Stevanović Z, Kolašinac S, Belović M, Torbica A, Zlatanović I, Pavlović V, Onjia A. Influence of Ultrasonic and Chemical Pretreatments on Quality Attributes of Dried Pepper (Capsicum annuum). in Foods. 2023;12(13):2468.
doi:10.3390/foods12132468 .

Lučić, Milica, Potkonjak, Nebojša, Sredović Ignjatović, Ivana, Lević, Steva, Dajić-Stevanović, Zora, Kolašinac, Stefan, Belović, Miona, Torbica, Aleksandra, Zlatanović, Ivan, Pavlović, Vladimir, Onjia, Antonije, "Influence of Ultrasonic and Chemical Pretreatments on Quality Attributes of Dried Pepper (Capsicum annuum)" in Foods, 12, no. 13 (2023):2468,
https://doi.org/10.3390/foods12132468 . .

TY  - CONF
AU  - Čokeša, Đuro
AU  - Marković, Mirjana
AU  - Potkonjak, Nebojša
AU  - Kaluđerović, Branka
AU  - Radmanović, Svjetlana
AU  - Šerbula, Snežana
PY  - 2023
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/6692
AB  - Arsenite–humic acid-binding process was investigated using the Isothermal Titration Calorimetry
(ITC). The ITC data were successfully (R2=0.996-0.936) interpreted by applying the MNIS model,
enabling thermodynamic parameters to be determined. The MNIS model was adjusted to the arsenite–
HA binding process assuming hydrogen bonding as the dominant type of interaction in the system.
Negative enthalpy change values indicated the arsenite–HAs binding as an exothermic process.
Negative ΔG values (-(27.85-26.83) kJ mol-1) pointed out to spontaneous binding reaction, leading to
the formation of the arsenite–HA complexes. High binding constants values ((7.57-5.02)105 M-1)
clearly demonstrated pronounced binding affinity. As ΔS values (0.041-0.027) kJ mol-1 K-1) were
apparently positive, but close to zero, and ΔH>ΔS, the reaction could be considered enthalpy driven.
Reaction heats and H values (-(18.96-15.64) kJ mol-1) confirmed hydrogen bonds as the most
ascendant interaction type in the arsenite–HA complex. Thermodynamic and reaction parameters
clearly indicated that arsenite–HA complexes are formed at common soil pH values, confirming the
possible influence of humic acids on increased As mobility, and its reduced bioavailability.
PB  - University of Belgrade, Technical Faculty in Bor
C3  - 29th INTERNATIONAL CONFERENCE ECOLOGICAL TRUTH AND ENVIRONMENTAL RESEARCH – EcoTER’22, Sokobanja, Serbia
T1  - ARSENITE–SOIL HUMIC ACID BINDING BY ISOTHERMAL TITRATION CALORIMETRY: THERMODYNAMICS AND MNIS MODEL
EP  - 126
SP  - 121
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_6692
ER  - 

@conference{
author = "Čokeša, Đuro and Marković, Mirjana and Potkonjak, Nebojša and Kaluđerović, Branka and Radmanović, Svjetlana and Šerbula, Snežana",
year = "2023",
abstract = "Arsenite–humic acid-binding process was investigated using the Isothermal Titration Calorimetry
(ITC). The ITC data were successfully (R2=0.996-0.936) interpreted by applying the MNIS model,
enabling thermodynamic parameters to be determined. The MNIS model was adjusted to the arsenite–
HA binding process assuming hydrogen bonding as the dominant type of interaction in the system.
Negative enthalpy change values indicated the arsenite–HAs binding as an exothermic process.
Negative ΔG values (-(27.85-26.83) kJ mol-1) pointed out to spontaneous binding reaction, leading to
the formation of the arsenite–HA complexes. High binding constants values ((7.57-5.02)105 M-1)
clearly demonstrated pronounced binding affinity. As ΔS values (0.041-0.027) kJ mol-1 K-1) were
apparently positive, but close to zero, and ΔH>ΔS, the reaction could be considered enthalpy driven.
Reaction heats and H values (-(18.96-15.64) kJ mol-1) confirmed hydrogen bonds as the most
ascendant interaction type in the arsenite–HA complex. Thermodynamic and reaction parameters
clearly indicated that arsenite–HA complexes are formed at common soil pH values, confirming the
possible influence of humic acids on increased As mobility, and its reduced bioavailability.",
publisher = "University of Belgrade, Technical Faculty in Bor",
journal = "29th INTERNATIONAL CONFERENCE ECOLOGICAL TRUTH AND ENVIRONMENTAL RESEARCH – EcoTER’22, Sokobanja, Serbia",
title = "ARSENITE–SOIL HUMIC ACID BINDING BY ISOTHERMAL TITRATION CALORIMETRY: THERMODYNAMICS AND MNIS MODEL",
pages = "126-121",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_6692"
}

Čokeša, Đ., Marković, M., Potkonjak, N., Kaluđerović, B., Radmanović, S.,& Šerbula, S.. (2023). ARSENITE–SOIL HUMIC ACID BINDING BY ISOTHERMAL TITRATION CALORIMETRY: THERMODYNAMICS AND MNIS MODEL. in 29th INTERNATIONAL CONFERENCE ECOLOGICAL TRUTH AND ENVIRONMENTAL RESEARCH – EcoTER’22, Sokobanja, Serbia
University of Belgrade, Technical Faculty in Bor., 121-126.
https://hdl.handle.net/21.15107/rcub_agrospace_6692

Čokeša Đ, Marković M, Potkonjak N, Kaluđerović B, Radmanović S, Šerbula S. ARSENITE–SOIL HUMIC ACID BINDING BY ISOTHERMAL TITRATION CALORIMETRY: THERMODYNAMICS AND MNIS MODEL. in 29th INTERNATIONAL CONFERENCE ECOLOGICAL TRUTH AND ENVIRONMENTAL RESEARCH – EcoTER’22, Sokobanja, Serbia. 2023;:121-126.
https://hdl.handle.net/21.15107/rcub_agrospace_6692 .

Čokeša, Đuro, Marković, Mirjana, Potkonjak, Nebojša, Kaluđerović, Branka, Radmanović, Svjetlana, Šerbula, Snežana, "ARSENITE–SOIL HUMIC ACID BINDING BY ISOTHERMAL TITRATION CALORIMETRY: THERMODYNAMICS AND MNIS MODEL" in 29th INTERNATIONAL CONFERENCE ECOLOGICAL TRUTH AND ENVIRONMENTAL RESEARCH – EcoTER’22, Sokobanja, Serbia (2023):121-126,
https://hdl.handle.net/21.15107/rcub_agrospace_6692 .

TY  - CONF
AU  - Marković, Mirjana
AU  - Radmanović, Svjetlana
AU  - Čokeša, Đuro
AU  - Potkonjak, Nebojša
PY  - 2023
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/6690
AB  - Humic acids, belonging to the humic substances, are the most reactive organic compounds in water, soil and sediments. They are known for their role in processes related to soil structure, biology, and chemistry, as well as for their effects on the behavior of environmental pollutants. The effects of humic acids on the environment are strongly influenced by their composition and structure. Humic acids are
used in various fields, especially in agriculture, environmental remediation and medicine. Agricultural
fertilizers containing humic acids as additives are often used to improve plant growth and soil fertility.
The content of heavy metals, metalloids, radionuclides and various organic pollutants can be reduced
by adsorption, complexation, and redox processes involving humic acids. Owing to the ability of
humic acids to form composites with inorganic and organic oxides, pollutants are adsorbed and
removed from water. In addition, the composites formed exhibit pronounced antibacterial activity in
water. Various organic pollutants such as pesticides, microplastics and antibiotics can also be
removed from soil and water by adsorption on the composites or humic acids. Various viruses with
positively charged glycoproteins can be bound by the negatively charged humic acids, defining them
as antivirally active. Currently, the humic acids are isolated from various matrices such as coals, peat
and organic wastes. Due to the increasing requirements for the commercial applications of humic
acids, their production and utilization are significantly important and trendy tasks. The humic acid
production with the higher yield is the focus of research today.
PB  - University of Belgrade, Technical Faculty in Bor
C3  - 30th INTERNATIONAL CONFERENCE ECOLOGICAL TRUTH AND ENVIRONMENTAL RESEARCH – EcoTER’23, Serbia
T1  - HUMIC ACIDS IN THE ENVIRONMENT
EP  - 39
SP  - 30
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_6690
ER  - 

@conference{
author = "Marković, Mirjana and Radmanović, Svjetlana and Čokeša, Đuro and Potkonjak, Nebojša",
year = "2023",
abstract = "Humic acids, belonging to the humic substances, are the most reactive organic compounds in water, soil and sediments. They are known for their role in processes related to soil structure, biology, and chemistry, as well as for their effects on the behavior of environmental pollutants. The effects of humic acids on the environment are strongly influenced by their composition and structure. Humic acids are
used in various fields, especially in agriculture, environmental remediation and medicine. Agricultural
fertilizers containing humic acids as additives are often used to improve plant growth and soil fertility.
The content of heavy metals, metalloids, radionuclides and various organic pollutants can be reduced
by adsorption, complexation, and redox processes involving humic acids. Owing to the ability of
humic acids to form composites with inorganic and organic oxides, pollutants are adsorbed and
removed from water. In addition, the composites formed exhibit pronounced antibacterial activity in
water. Various organic pollutants such as pesticides, microplastics and antibiotics can also be
removed from soil and water by adsorption on the composites or humic acids. Various viruses with
positively charged glycoproteins can be bound by the negatively charged humic acids, defining them
as antivirally active. Currently, the humic acids are isolated from various matrices such as coals, peat
and organic wastes. Due to the increasing requirements for the commercial applications of humic
acids, their production and utilization are significantly important and trendy tasks. The humic acid
production with the higher yield is the focus of research today.",
publisher = "University of Belgrade, Technical Faculty in Bor",
journal = "30th INTERNATIONAL CONFERENCE ECOLOGICAL TRUTH AND ENVIRONMENTAL RESEARCH – EcoTER’23, Serbia",
title = "HUMIC ACIDS IN THE ENVIRONMENT",
pages = "39-30",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_6690"
}

Marković, M., Radmanović, S., Čokeša, Đ.,& Potkonjak, N.. (2023). HUMIC ACIDS IN THE ENVIRONMENT. in 30th INTERNATIONAL CONFERENCE ECOLOGICAL TRUTH AND ENVIRONMENTAL RESEARCH – EcoTER’23, Serbia
University of Belgrade, Technical Faculty in Bor., 30-39.
https://hdl.handle.net/21.15107/rcub_agrospace_6690

Marković M, Radmanović S, Čokeša Đ, Potkonjak N. HUMIC ACIDS IN THE ENVIRONMENT. in 30th INTERNATIONAL CONFERENCE ECOLOGICAL TRUTH AND ENVIRONMENTAL RESEARCH – EcoTER’23, Serbia. 2023;:30-39.
https://hdl.handle.net/21.15107/rcub_agrospace_6690 .

Marković, Mirjana, Radmanović, Svjetlana, Čokeša, Đuro, Potkonjak, Nebojša, "HUMIC ACIDS IN THE ENVIRONMENT" in 30th INTERNATIONAL CONFERENCE ECOLOGICAL TRUTH AND ENVIRONMENTAL RESEARCH – EcoTER’23, Serbia (2023):30-39,
https://hdl.handle.net/21.15107/rcub_agrospace_6690 .