TY  - JOUR
AU  - Ilić, Marija
AU  - Haegel, Franz-Hubert
AU  - Lolić, Aleksandar
AU  - Nedić, Zoran
AU  - Tosti, Tomislav
AU  - Ignjatović, Ivana Sredović
AU  - Linden, Andreas
AU  - Jablonowski, Nicolai D.
AU  - Hartmann, Heinrich
PY  - 2022
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/6225
AB  - The knowledge of the structural and chemical properties of biochars is decisive for their application as technical products. For this reason, methods for the characterization of biochars that are generally applicable and allow quality control are highly desired. Several methods that have shown potential in other studies were used to investigate two activated carbons and seven biochars from different processes and feedstock. The chars were chosen to cover a wide range of chemical composition and structural properties as a hardness test for the analytical methods used in this study. Specific problems connected with the pretreatment of samples and drawbacks of some methods for some types of chars could be identified in an integrated consideration of the results from different methods. None of the spectroscopic methods was found to be suitable for the quality control of all types of chars. The most valuable results were obtained by chemical analysis that, however, required the complete determination of the main elements, including that of oxygen, and of inorganic components for adequate results. The combination of X-ray photoelectron spectroscopy (XPS) and FT-IR spectroscopy allows a rough characterization of surface functional groups, but cannot discriminate aliphatic and aromatic OH groups. FT-IR might be a suitable method for the quality control of biochars made at lower temperature. The results of Raman spectroscopy did not well correlate with the amount of sp2 hybridized carbon determined by XPS. A better correlation of XPS data was found with the electrical polarization determined by the method of spectral induced polarization that was used for the first time in conjunction with extensive analytical characterization. © 2022 Ilić et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
T2  - PLoS ONE
T2  - PLoS ONE
T1  - Surface functional groups and degree of carbonization of selected chars from different processes and feedstock
IS  - 11 November
VL  - 17
DO  - 10.1371/journal.pone.0277365
ER  - 

@article{
author = "Ilić, Marija and Haegel, Franz-Hubert and Lolić, Aleksandar and Nedić, Zoran and Tosti, Tomislav and Ignjatović, Ivana Sredović and Linden, Andreas and Jablonowski, Nicolai D. and Hartmann, Heinrich",
year = "2022",
abstract = "The knowledge of the structural and chemical properties of biochars is decisive for their application as technical products. For this reason, methods for the characterization of biochars that are generally applicable and allow quality control are highly desired. Several methods that have shown potential in other studies were used to investigate two activated carbons and seven biochars from different processes and feedstock. The chars were chosen to cover a wide range of chemical composition and structural properties as a hardness test for the analytical methods used in this study. Specific problems connected with the pretreatment of samples and drawbacks of some methods for some types of chars could be identified in an integrated consideration of the results from different methods. None of the spectroscopic methods was found to be suitable for the quality control of all types of chars. The most valuable results were obtained by chemical analysis that, however, required the complete determination of the main elements, including that of oxygen, and of inorganic components for adequate results. The combination of X-ray photoelectron spectroscopy (XPS) and FT-IR spectroscopy allows a rough characterization of surface functional groups, but cannot discriminate aliphatic and aromatic OH groups. FT-IR might be a suitable method for the quality control of biochars made at lower temperature. The results of Raman spectroscopy did not well correlate with the amount of sp2 hybridized carbon determined by XPS. A better correlation of XPS data was found with the electrical polarization determined by the method of spectral induced polarization that was used for the first time in conjunction with extensive analytical characterization. © 2022 Ilić et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.",
journal = "PLoS ONE, PLoS ONE",
title = "Surface functional groups and degree of carbonization of selected chars from different processes and feedstock",
number = "11 November",
volume = "17",
doi = "10.1371/journal.pone.0277365"
}

Ilić, M., Haegel, F., Lolić, A., Nedić, Z., Tosti, T., Ignjatović, I. S., Linden, A., Jablonowski, N. D.,& Hartmann, H.. (2022). Surface functional groups and degree of carbonization of selected chars from different processes and feedstock. in PLoS ONE, 17(11 November).
https://doi.org/10.1371/journal.pone.0277365

Ilić M, Haegel F, Lolić A, Nedić Z, Tosti T, Ignjatović IS, Linden A, Jablonowski ND, Hartmann H. Surface functional groups and degree of carbonization of selected chars from different processes and feedstock. in PLoS ONE. 2022;17(11 November).
doi:10.1371/journal.pone.0277365 .

Ilić, Marija, Haegel, Franz-Hubert, Lolić, Aleksandar, Nedić, Zoran, Tosti, Tomislav, Ignjatović, Ivana Sredović, Linden, Andreas, Jablonowski, Nicolai D., Hartmann, Heinrich, "Surface functional groups and degree of carbonization of selected chars from different processes and feedstock" in PLoS ONE, 17, no. 11 November (2022),
https://doi.org/10.1371/journal.pone.0277365 . .

TY  - JOUR
AU  - Fotirić Akšić, Milica
AU  - Nešović, Milica
AU  - Ćirić, Ivanka
AU  - Tešić, Živoslav
AU  - Pezo, Lato
AU  - Tosti, Tomislav
AU  - Gašić, Uroš
AU  - Dojčinović, Biljana
AU  - Lončar, Biljana
AU  - Meland, Mekjell
PY  - 2022
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/6186
AB  - Raspberries are considered valuable fruits due to their high levels of nutrients and phytochemicals, which have many beneficial effects on humans. As many external factors affect the composition of these fruits (the type of cultivation, soil characteristics, ripeness, storage time and post-harvest technologies, cultivar/genotype, and climatic conditions), the goal of this study was to analyze different raspberry cultivars grown in Norway. Considering that Norway is a country with specific climatic conditions, as well as has a limited period of fruit vegetation, another important goal of this study was also to compare raspberries from different Norwegian areas, as well as different grown cultivars. Modern analytical techniques, such as high-performance anion-exchange liquid chromatography with pulsed amperometric detection (HPEAC-PAD), ultra-high-performance liquid chromatography with diode array detector coupled to triple quadrupole mass spectrometry (UHPLC-DAD MS/MS), and inductively coupled plasma–optical emission spectrometry (ICP-OES), provided a detailed examination of the raspberry extract samples. Based on their high levels of minerals (especially N, P, and K), organic acids (predominantly citric and malic acids), sugars (glucose, fructose, sucrose, and galactose), and polyphenols (ellagic acid, syringic acid, quercetin, and rutin), Norwegian raspberries could be considered fruits with increased health-beneficial compounds. The chemical composition of the studied cultivars depended on the locality of growth. © 2022 by the authors.
T2  - Horticulturae
T2  - Horticulturae
T1  - Chemical Fruit Profiles of Different Raspberry Cultivars Grown in Specific Norwegian Agroclimatic Conditions
IS  - 9
VL  - 8
DO  - 10.3390/horticulturae8090765
ER  - 

@article{
author = "Fotirić Akšić, Milica and Nešović, Milica and Ćirić, Ivanka and Tešić, Živoslav and Pezo, Lato and Tosti, Tomislav and Gašić, Uroš and Dojčinović, Biljana and Lončar, Biljana and Meland, Mekjell",
year = "2022",
abstract = "Raspberries are considered valuable fruits due to their high levels of nutrients and phytochemicals, which have many beneficial effects on humans. As many external factors affect the composition of these fruits (the type of cultivation, soil characteristics, ripeness, storage time and post-harvest technologies, cultivar/genotype, and climatic conditions), the goal of this study was to analyze different raspberry cultivars grown in Norway. Considering that Norway is a country with specific climatic conditions, as well as has a limited period of fruit vegetation, another important goal of this study was also to compare raspberries from different Norwegian areas, as well as different grown cultivars. Modern analytical techniques, such as high-performance anion-exchange liquid chromatography with pulsed amperometric detection (HPEAC-PAD), ultra-high-performance liquid chromatography with diode array detector coupled to triple quadrupole mass spectrometry (UHPLC-DAD MS/MS), and inductively coupled plasma–optical emission spectrometry (ICP-OES), provided a detailed examination of the raspberry extract samples. Based on their high levels of minerals (especially N, P, and K), organic acids (predominantly citric and malic acids), sugars (glucose, fructose, sucrose, and galactose), and polyphenols (ellagic acid, syringic acid, quercetin, and rutin), Norwegian raspberries could be considered fruits with increased health-beneficial compounds. The chemical composition of the studied cultivars depended on the locality of growth. © 2022 by the authors.",
journal = "Horticulturae, Horticulturae",
title = "Chemical Fruit Profiles of Different Raspberry Cultivars Grown in Specific Norwegian Agroclimatic Conditions",
number = "9",
volume = "8",
doi = "10.3390/horticulturae8090765"
}

Fotirić Akšić, M., Nešović, M., Ćirić, I., Tešić, Ž., Pezo, L., Tosti, T., Gašić, U., Dojčinović, B., Lončar, B.,& Meland, M.. (2022). Chemical Fruit Profiles of Different Raspberry Cultivars Grown in Specific Norwegian Agroclimatic Conditions. in Horticulturae, 8(9).
https://doi.org/10.3390/horticulturae8090765

Fotirić Akšić M, Nešović M, Ćirić I, Tešić Ž, Pezo L, Tosti T, Gašić U, Dojčinović B, Lončar B, Meland M. Chemical Fruit Profiles of Different Raspberry Cultivars Grown in Specific Norwegian Agroclimatic Conditions. in Horticulturae. 2022;8(9).
doi:10.3390/horticulturae8090765 .

Fotirić Akšić, Milica, Nešović, Milica, Ćirić, Ivanka, Tešić, Živoslav, Pezo, Lato, Tosti, Tomislav, Gašić, Uroš, Dojčinović, Biljana, Lončar, Biljana, Meland, Mekjell, "Chemical Fruit Profiles of Different Raspberry Cultivars Grown in Specific Norwegian Agroclimatic Conditions" in Horticulturae, 8, no. 9 (2022),
https://doi.org/10.3390/horticulturae8090765 . .

TY  - JOUR
AU  - Fotirić Akšić, Milica
AU  - Nešović, Milica
AU  - Ćirić, Ivanka
AU  - Tešić, Živoslav
AU  - Pezo, Lato
AU  - Tosti, Tomislav
AU  - Gašić, Uroš
AU  - Dojčinović, Biljana
AU  - Lončar, Biljana
AU  - Meland, Mekjell
PY  - 2022
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/6147
AB  - Using modern analytical techniques, a comprehensive study of the chemical composition of fruits from apple cultivars grown in Western Norway during 2019 and 2020 was done. Metals, sugars, organic acids, antioxidant tests, and polyphenol content have been observed. In all investigated samples, the most dominant sugars were glucose, fructose, and sucrose. Among 11 tested organic acids, the dominant was malic acid, followed by citric and maleic acid. The most common metal was potassium, followed by magnesium and zinc. The quantification of polyphenols showed that among the 11 quantified polyphenols, chlorogenic acid, quercetin 3-O-rhamnoside, quercetin 3-O-glucoside, quercetin, and phlorizin were the most abundant. A detailed study of the polyphenolic profile of nine investigated apple samples provided 30 identified polyphenolic compounds from the class of hydroxybenzoic and hydroxycinnamic acids, flavonoids, and dihydrochalcones. In addition to the identified 3-O-caffeoylquinic acid, its two isomers of 5-O-caffeoylquinic acid and three esters were also found. Present polyphenols of the tested apples provided significant data on the quality of Norwegian apples, and they contribute to the distinguishing of these apple samples. Copyright © 2022 Fotirić Akšić, Nešović, Ćirić, Tešić, Pezo, Tosti, Gašić, Dojčinović, Lončar and Meland.
T2  - Frontiers in Nutrition
T2  - Frontiers in Nutrition
T1  - Polyphenolics and Chemical Profiles of Domestic Norwegian Apple (Malus × domestica Borkh.) Cultivars
VL  - 9
DO  - 10.3389/fnut.2022.941487
ER  - 

@article{
author = "Fotirić Akšić, Milica and Nešović, Milica and Ćirić, Ivanka and Tešić, Živoslav and Pezo, Lato and Tosti, Tomislav and Gašić, Uroš and Dojčinović, Biljana and Lončar, Biljana and Meland, Mekjell",
year = "2022",
abstract = "Using modern analytical techniques, a comprehensive study of the chemical composition of fruits from apple cultivars grown in Western Norway during 2019 and 2020 was done. Metals, sugars, organic acids, antioxidant tests, and polyphenol content have been observed. In all investigated samples, the most dominant sugars were glucose, fructose, and sucrose. Among 11 tested organic acids, the dominant was malic acid, followed by citric and maleic acid. The most common metal was potassium, followed by magnesium and zinc. The quantification of polyphenols showed that among the 11 quantified polyphenols, chlorogenic acid, quercetin 3-O-rhamnoside, quercetin 3-O-glucoside, quercetin, and phlorizin were the most abundant. A detailed study of the polyphenolic profile of nine investigated apple samples provided 30 identified polyphenolic compounds from the class of hydroxybenzoic and hydroxycinnamic acids, flavonoids, and dihydrochalcones. In addition to the identified 3-O-caffeoylquinic acid, its two isomers of 5-O-caffeoylquinic acid and three esters were also found. Present polyphenols of the tested apples provided significant data on the quality of Norwegian apples, and they contribute to the distinguishing of these apple samples. Copyright © 2022 Fotirić Akšić, Nešović, Ćirić, Tešić, Pezo, Tosti, Gašić, Dojčinović, Lončar and Meland.",
journal = "Frontiers in Nutrition, Frontiers in Nutrition",
title = "Polyphenolics and Chemical Profiles of Domestic Norwegian Apple (Malus × domestica Borkh.) Cultivars",
volume = "9",
doi = "10.3389/fnut.2022.941487"
}

Fotirić Akšić, M., Nešović, M., Ćirić, I., Tešić, Ž., Pezo, L., Tosti, T., Gašić, U., Dojčinović, B., Lončar, B.,& Meland, M.. (2022). Polyphenolics and Chemical Profiles of Domestic Norwegian Apple (Malus × domestica Borkh.) Cultivars. in Frontiers in Nutrition, 9.
https://doi.org/10.3389/fnut.2022.941487

Fotirić Akšić M, Nešović M, Ćirić I, Tešić Ž, Pezo L, Tosti T, Gašić U, Dojčinović B, Lončar B, Meland M. Polyphenolics and Chemical Profiles of Domestic Norwegian Apple (Malus × domestica Borkh.) Cultivars. in Frontiers in Nutrition. 2022;9.
doi:10.3389/fnut.2022.941487 .

Fotirić Akšić, Milica, Nešović, Milica, Ćirić, Ivanka, Tešić, Živoslav, Pezo, Lato, Tosti, Tomislav, Gašić, Uroš, Dojčinović, Biljana, Lončar, Biljana, Meland, Mekjell, "Polyphenolics and Chemical Profiles of Domestic Norwegian Apple (Malus × domestica Borkh.) Cultivars" in Frontiers in Nutrition, 9 (2022),
https://doi.org/10.3389/fnut.2022.941487 . .