TY  - JOUR
AU  - Nešović, Milica
AU  - Gašić, Uroš
AU  - Tosti, Tomislav
AU  - Horvacki, Nikola
AU  - Nedić, Nebojša
AU  - Sredojević, Milica
AU  - Blagojević, Stevan
AU  - Ignjatović, Ljubiša
AU  - Tešić, Živoslav
PY  - 2021
UR  - https://radar.ibiss.bg.ac.rs/handle/123456789/4314
AB  - The aim of this study was to provide information on the phenolic and sugar profiles of different parts of the buckwheat plant, which can define that buckwheat is a functional food, with a high nutritional value and very useful for human health. Therefore, the extracts of buckwheat leaf, stem, and flower, as well as buckwheat grain were analysed for the content of polyphenol and antioxidant tests. The identification of a notable number of phenolic compounds and quantification of sugars in different parts of buckwheat indicates that buckwheat is a highly valuable plant. A total of 60 phenolic compounds were identified (18 cinnamic acid derivatives, 14 flavonols, 13 flavan-3-ols (including proanthocyanidins), 10 hydroxybenzoic acid derivatives, and 5 flavones) using ultra-high-performance liquid chromatography (UHPLC), coupled with a hybrid mass spectrometer which combines the Linear Trap Quadrupole (LTQ) and OrbiTrap mass analyzer. The highest number of phenolic compounds was found in the analysed buckwheat flower sample, and then in the leaf, followed by the grain and the stem. In addition, the sugar profile of buckwheat leaf, stem, flower and grain, as well as the buckwheat pollen and the nectar was analysed. Hence, 16 sugars and 5 sugar alcohols were detected by the high-performance anion exchange chromatography (HPAEC) with a pulsed amperometric detector (PAD). Sucrose was found in a significant amount with the highest content in buckwheat leaf. Trisaccharides had similar accumulation in the sample extracts, while disaccharides dominated in buckwheat leaf, followed by nectar and pollen. The sugar alcohols showed the highest content in buckwheat grain, where erythritol was predominant. The obtained results show that buckwheat is very rich in phenolic compounds and sugars. In addition to grain, the other parts of the buckwheat plant can be used as a very good source of different classes of phenolic compounds. This study provides useful information on the distribution of phytochemicals in different parts of the buckwheat plant, which contribute to the maintaining of the status of buckwheat as a functional food.
PB  - Cambridge: Royal Society of Chemistry
T2  - RSC Advances
T1  - Distribution of polyphenolic and sugar compounds in different buckwheat plant parts
IS  - 42
VL  - 11
DO  - 10.1039/D1RA04250E
SP  - 25816
EP  - 25829
ER  - 

@article{
author = "Nešović, Milica and Gašić, Uroš and Tosti, Tomislav and Horvacki, Nikola and Nedić, Nebojša and Sredojević, Milica and Blagojević, Stevan and Ignjatović, Ljubiša and Tešić, Živoslav",
year = "2021",
abstract = "The aim of this study was to provide information on the phenolic and sugar profiles of different parts of the buckwheat plant, which can define that buckwheat is a functional food, with a high nutritional value and very useful for human health. Therefore, the extracts of buckwheat leaf, stem, and flower, as well as buckwheat grain were analysed for the content of polyphenol and antioxidant tests. The identification of a notable number of phenolic compounds and quantification of sugars in different parts of buckwheat indicates that buckwheat is a highly valuable plant. A total of 60 phenolic compounds were identified (18 cinnamic acid derivatives, 14 flavonols, 13 flavan-3-ols (including proanthocyanidins), 10 hydroxybenzoic acid derivatives, and 5 flavones) using ultra-high-performance liquid chromatography (UHPLC), coupled with a hybrid mass spectrometer which combines the Linear Trap Quadrupole (LTQ) and OrbiTrap mass analyzer. The highest number of phenolic compounds was found in the analysed buckwheat flower sample, and then in the leaf, followed by the grain and the stem. In addition, the sugar profile of buckwheat leaf, stem, flower and grain, as well as the buckwheat pollen and the nectar was analysed. Hence, 16 sugars and 5 sugar alcohols were detected by the high-performance anion exchange chromatography (HPAEC) with a pulsed amperometric detector (PAD). Sucrose was found in a significant amount with the highest content in buckwheat leaf. Trisaccharides had similar accumulation in the sample extracts, while disaccharides dominated in buckwheat leaf, followed by nectar and pollen. The sugar alcohols showed the highest content in buckwheat grain, where erythritol was predominant. The obtained results show that buckwheat is very rich in phenolic compounds and sugars. In addition to grain, the other parts of the buckwheat plant can be used as a very good source of different classes of phenolic compounds. This study provides useful information on the distribution of phytochemicals in different parts of the buckwheat plant, which contribute to the maintaining of the status of buckwheat as a functional food.",
publisher = "Cambridge: Royal Society of Chemistry",
journal = "RSC Advances",
title = "Distribution of polyphenolic and sugar compounds in different buckwheat plant parts",
number = "42",
volume = "11",
doi = "10.1039/D1RA04250E",
pages = "25816-25829"
}

Nešović, M., Gašić, U., Tosti, T., Horvacki, N., Nedić, N., Sredojević, M., Blagojević, S., Ignjatović, L.,& Tešić, Ž.. (2021). Distribution of polyphenolic and sugar compounds in different buckwheat plant parts. in RSC Advances
Cambridge: Royal Society of Chemistry., 11(42), 25816-25829.
https://doi.org/10.1039/D1RA04250E

Nešović M, Gašić U, Tosti T, Horvacki N, Nedić N, Sredojević M, Blagojević S, Ignjatović L, Tešić Ž. Distribution of polyphenolic and sugar compounds in different buckwheat plant parts. in RSC Advances. 2021;11(42):25816-25829.
doi:10.1039/D1RA04250E .

Nešović, Milica, Gašić, Uroš, Tosti, Tomislav, Horvacki, Nikola, Nedić, Nebojša, Sredojević, Milica, Blagojević, Stevan, Ignjatović, Ljubiša, Tešić, Živoslav, "Distribution of polyphenolic and sugar compounds in different buckwheat plant parts" in RSC Advances, 11, no. 42 (2021):25816-25829,
https://doi.org/10.1039/D1RA04250E . .

TY  - JOUR
AU  - Nešović, Milica
AU  - Gašić, Uroš
AU  - Tosti, Tomislav
AU  - Horvacki, Nikola
AU  - Šikoparija, Branko
AU  - Nedić, Nebojša
AU  - Blagojević, Stevan
AU  - Ignjatović, Ljubiša
AU  - Tešić, Živoslav
PY  - 2020
UR  - https://radar.ibiss.bg.ac.rs/handle/123456789/4058
AB  - A focus of research in recent years is the comparison of honey as the final product of bees with pollen and nectar of the plant from which the honey originates, as the main food source for bees. Buckwheat honey is recognized as a nutritionally valuable product, which provides a scientifically proven health benefit and is confirmed as a functional food. The quality of this type of honey is attributed to high levels of phytochemicals in buckwheat. The purpose of this study was the examination of similarity between buckwheat honey and buckwheat nectar and pollen, as well as simultaneous investigation of their chemical profiles and the origin of the honey. The phenolic profile of buckwheat pollen showed a lower number of flavonoids and phenolic acids than those of nectar and honey samples, but confirmed the presence of the most characteristic polyphenols derived from the buckwheat plant. The notable difference was found to be the presence of (epi)catechin units, its galloylated derivatives and procyanidin dimers, which were not present in honey. Honey polyphenols displayed a pronounced correlation with those of nectar, but not with those of pollen. Finally, by comparing the polyphenolic profiles of honey, nectar and pollen sharing the same geographical origin, new data could be provided for a potential assessment of the botanical origin of buckwheat honey.
PB  - Royal Society of Chemistry
T2  - Royal Society Open Science
T1  - Polyphenolic profile of buckwheat honey, nectar and pollen
IS  - 12
VL  - 7
DO  - 10.1098/rsos.201576
SP  - 201576
ER  - 

@article{
author = "Nešović, Milica and Gašić, Uroš and Tosti, Tomislav and Horvacki, Nikola and Šikoparija, Branko and Nedić, Nebojša and Blagojević, Stevan and Ignjatović, Ljubiša and Tešić, Živoslav",
year = "2020",
abstract = "A focus of research in recent years is the comparison of honey as the final product of bees with pollen and nectar of the plant from which the honey originates, as the main food source for bees. Buckwheat honey is recognized as a nutritionally valuable product, which provides a scientifically proven health benefit and is confirmed as a functional food. The quality of this type of honey is attributed to high levels of phytochemicals in buckwheat. The purpose of this study was the examination of similarity between buckwheat honey and buckwheat nectar and pollen, as well as simultaneous investigation of their chemical profiles and the origin of the honey. The phenolic profile of buckwheat pollen showed a lower number of flavonoids and phenolic acids than those of nectar and honey samples, but confirmed the presence of the most characteristic polyphenols derived from the buckwheat plant. The notable difference was found to be the presence of (epi)catechin units, its galloylated derivatives and procyanidin dimers, which were not present in honey. Honey polyphenols displayed a pronounced correlation with those of nectar, but not with those of pollen. Finally, by comparing the polyphenolic profiles of honey, nectar and pollen sharing the same geographical origin, new data could be provided for a potential assessment of the botanical origin of buckwheat honey.",
publisher = "Royal Society of Chemistry",
journal = "Royal Society Open Science",
title = "Polyphenolic profile of buckwheat honey, nectar and pollen",
number = "12",
volume = "7",
doi = "10.1098/rsos.201576",
pages = "201576"
}

Nešović, M., Gašić, U., Tosti, T., Horvacki, N., Šikoparija, B., Nedić, N., Blagojević, S., Ignjatović, L.,& Tešić, Ž.. (2020). Polyphenolic profile of buckwheat honey, nectar and pollen. in Royal Society Open Science
Royal Society of Chemistry., 7(12), 201576.
https://doi.org/10.1098/rsos.201576

Nešović M, Gašić U, Tosti T, Horvacki N, Šikoparija B, Nedić N, Blagojević S, Ignjatović L, Tešić Ž. Polyphenolic profile of buckwheat honey, nectar and pollen. in Royal Society Open Science. 2020;7(12):201576.
doi:10.1098/rsos.201576 .

Nešović, Milica, Gašić, Uroš, Tosti, Tomislav, Horvacki, Nikola, Šikoparija, Branko, Nedić, Nebojša, Blagojević, Stevan, Ignjatović, Ljubiša, Tešić, Živoslav, "Polyphenolic profile of buckwheat honey, nectar and pollen" in Royal Society Open Science, 7, no. 12 (2020):201576,
https://doi.org/10.1098/rsos.201576 . .

TY  - JOUR
AU  - Nešović, Milica
AU  - Gašić, Uroš
AU  - Tosti, Tomislav
AU  - Trifković, Jelena
AU  - Baošić, Rada
AU  - Blagojević, Stevan
AU  - Ignjatović, Ljubiša
AU  - Tešić, Živoslav
PY  - 2020
UR  - https://radar.ibiss.bg.ac.rs/handle/123456789/3600
AB  - The research subject of this paper was a detail physicochemical analysis of 28 honey samples from the northern part of Montenegro. The honey from Montenegro has not been previously studied in such detail. Differentiation between samples, such as honeydew honey and polyfloral honey, was based on electrical conductivity, which was higher than 0.8 mS cm-1 for honeydew honey, as was expected. Other investigated physicochemical parameters (water content, free acids, diastase activity, hydroxymethylfurfural (HMF) content and sugar content) have shown great similarity for all honey samples. The main interest of this study was the identification and quantification of phenolic compounds using ultra-high performance liquid chromatography (UHPLC) with mass spectrometry detection. The results show that honey samples are very rich in phenolic compounds, especially quercetin. Among the 31 quantified phenolic compounds, the most dominant were phenolic acids. The highlight was based on p-hydroxybenzoic acid, p-coumaric acid, caffeic acid and ferulic acid. Considering polyphenolic compounds and sugar content, a high nutritional value can be observed in all samples, with an emphasis on polyfloral honeys, as was confirmed with principal component analysis (PCA). In addition, all honey samples were tested for total phenolic content (TPC) and radical scavenging activity (RSA). The results indicate the higher antioxidant ability of honeys from Montenegro in comparison to some honey samples from other countries in the region.
T2  - RSC Advances
T1  - Physicochemical analysis and phenolic profile of polyfloral and honeydew honey from Montenegro
IS  - 5
VL  - 10
DO  - 10.1039/c9ra08783d
SP  - 2462
EP  - 2471
ER  - 

@article{
author = "Nešović, Milica and Gašić, Uroš and Tosti, Tomislav and Trifković, Jelena and Baošić, Rada and Blagojević, Stevan and Ignjatović, Ljubiša and Tešić, Živoslav",
year = "2020",
abstract = "The research subject of this paper was a detail physicochemical analysis of 28 honey samples from the northern part of Montenegro. The honey from Montenegro has not been previously studied in such detail. Differentiation between samples, such as honeydew honey and polyfloral honey, was based on electrical conductivity, which was higher than 0.8 mS cm-1 for honeydew honey, as was expected. Other investigated physicochemical parameters (water content, free acids, diastase activity, hydroxymethylfurfural (HMF) content and sugar content) have shown great similarity for all honey samples. The main interest of this study was the identification and quantification of phenolic compounds using ultra-high performance liquid chromatography (UHPLC) with mass spectrometry detection. The results show that honey samples are very rich in phenolic compounds, especially quercetin. Among the 31 quantified phenolic compounds, the most dominant were phenolic acids. The highlight was based on p-hydroxybenzoic acid, p-coumaric acid, caffeic acid and ferulic acid. Considering polyphenolic compounds and sugar content, a high nutritional value can be observed in all samples, with an emphasis on polyfloral honeys, as was confirmed with principal component analysis (PCA). In addition, all honey samples were tested for total phenolic content (TPC) and radical scavenging activity (RSA). The results indicate the higher antioxidant ability of honeys from Montenegro in comparison to some honey samples from other countries in the region.",
journal = "RSC Advances",
title = "Physicochemical analysis and phenolic profile of polyfloral and honeydew honey from Montenegro",
number = "5",
volume = "10",
doi = "10.1039/c9ra08783d",
pages = "2462-2471"
}

Nešović, M., Gašić, U., Tosti, T., Trifković, J., Baošić, R., Blagojević, S., Ignjatović, L.,& Tešić, Ž.. (2020). Physicochemical analysis and phenolic profile of polyfloral and honeydew honey from Montenegro. in RSC Advances, 10(5), 2462-2471.
https://doi.org/10.1039/c9ra08783d

Nešović M, Gašić U, Tosti T, Trifković J, Baošić R, Blagojević S, Ignjatović L, Tešić Ž. Physicochemical analysis and phenolic profile of polyfloral and honeydew honey from Montenegro. in RSC Advances. 2020;10(5):2462-2471.
doi:10.1039/c9ra08783d .

Nešović, Milica, Gašić, Uroš, Tosti, Tomislav, Trifković, Jelena, Baošić, Rada, Blagojević, Stevan, Ignjatović, Ljubiša, Tešić, Živoslav, "Physicochemical analysis and phenolic profile of polyfloral and honeydew honey from Montenegro" in RSC Advances, 10, no. 5 (2020):2462-2471,
https://doi.org/10.1039/c9ra08783d . .