TY  - JOUR
AU  - Vasić, Vesna M.
AU  - Gašić, Uroš M.
AU  - Stanković, Dalibor M.
AU  - Lušić, Dražen
AU  - Vukić-Lušić, Darija
AU  - Milojković-Opsenica, Dušanka M.
AU  - Tešić, Živoslav
AU  - Trifković, Jelena Đ.
PY  - 2019
UR  - https://linkinghub.elsevier.com/retrieve/pii/S0308814618316169
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7868
AB  - Concerning the particular nutritive value of honeydew honey compared to blossom honey, and small number of studies defining botanical origin of honeydew honey, comprehensive analysis of phenolic profile of 64 honeydew honey samples of specific botanical origin was performed. Two advanced techniques of liquid chromatography hyphenated with mass spectrometry were used for identification of a total of 52 compounds and quantification of 25 of them. Pattern recognition analysis applied on data on phenolic compounds content confirmed that quercetin, naringenin, caffeoylquinic acid, hydroxyphenylacetic acid, apigenin and genistein, could be considered as potential markers of botanical origin of honeydew honey. Spectroscopic and electrochemical approaches were applied for the evaluation of the antioxidant capacity. Quercus sps. samples, Quercus frainetto and Quercus ilex, showed high biological activity and specific chemical composition. Additionally, cyclic voltammetry profiles were used for characterization and natural clustering of honeydew honey for the first time. © 2018 Elsevier Ltd
T2  - Food Chemistry
T1  - Towards better quality criteria of European honeydew honey: Phenolic profile and antioxidant capacity
VL  - 274
SP  - 629
EP  - 641
DO  - 10.1016/j.foodchem.2018.09.045
ER  - 

@article{
author = "Vasić, Vesna M. and Gašić, Uroš M. and Stanković, Dalibor M. and Lušić, Dražen and Vukić-Lušić, Darija and Milojković-Opsenica, Dušanka M. and Tešić, Živoslav and Trifković, Jelena Đ.",
year = "2019",
abstract = "Concerning the particular nutritive value of honeydew honey compared to blossom honey, and small number of studies defining botanical origin of honeydew honey, comprehensive analysis of phenolic profile of 64 honeydew honey samples of specific botanical origin was performed. Two advanced techniques of liquid chromatography hyphenated with mass spectrometry were used for identification of a total of 52 compounds and quantification of 25 of them. Pattern recognition analysis applied on data on phenolic compounds content confirmed that quercetin, naringenin, caffeoylquinic acid, hydroxyphenylacetic acid, apigenin and genistein, could be considered as potential markers of botanical origin of honeydew honey. Spectroscopic and electrochemical approaches were applied for the evaluation of the antioxidant capacity. Quercus sps. samples, Quercus frainetto and Quercus ilex, showed high biological activity and specific chemical composition. Additionally, cyclic voltammetry profiles were used for characterization and natural clustering of honeydew honey for the first time. © 2018 Elsevier Ltd",
journal = "Food Chemistry",
title = "Towards better quality criteria of European honeydew honey: Phenolic profile and antioxidant capacity",
volume = "274",
pages = "629-641",
doi = "10.1016/j.foodchem.2018.09.045"
}

Vasić, V. M., Gašić, U. M., Stanković, D. M., Lušić, D., Vukić-Lušić, D., Milojković-Opsenica, D. M., Tešić, Ž.,& Trifković, J. Đ.. (2019). Towards better quality criteria of European honeydew honey: Phenolic profile and antioxidant capacity. in Food Chemistry, 274, 629-641.
https://doi.org/10.1016/j.foodchem.2018.09.045

Vasić VM, Gašić UM, Stanković DM, Lušić D, Vukić-Lušić D, Milojković-Opsenica DM, Tešić Ž, Trifković JĐ. Towards better quality criteria of European honeydew honey: Phenolic profile and antioxidant capacity. in Food Chemistry. 2019;274:629-641.
doi:10.1016/j.foodchem.2018.09.045 .

Vasić, Vesna M., Gašić, Uroš M., Stanković, Dalibor M., Lušić, Dražen, Vukić-Lušić, Darija, Milojković-Opsenica, Dušanka M., Tešić, Živoslav, Trifković, Jelena Đ., "Towards better quality criteria of European honeydew honey: Phenolic profile and antioxidant capacity" in Food Chemistry, 274 (2019):629-641,
https://doi.org/10.1016/j.foodchem.2018.09.045 . .

TY  - JOUR
AU  - Ristivojević, Petar
AU  - Trifković, Jelena Đ.
AU  - Stanković, Dalibor M.
AU  - Radoicic, Aleksandra
AU  - Manojlović, Dragan D.
AU  - Milojković-Opsenica, Dušanka M.
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1791
AB  - Propolis, as a beneficial natural product, has found application in the food and pharmaceutical industries as a food preservative, active packaging material as well as a main component of propolis containing products. Quality control of propolis has thus gained in importance. We used simple, fast, and low-cost techniques such as UV/Vis spectrophotometry and cyclic voltammetry applied in combination with principal component analysis to confirm the presence of two botanical sub-types of propolis. Cyclic voltammetry, as a green, sensitive, and convenient technique suitable for investigation of chemical profile, together with multivariate chemometrics technique, was used for the first time for characterization and classification of propolis. UV/Vis spectroscopy was applied in two aspects, absorption at certain wavelength for the quantitative determination of analytes, i.e. determination of quality control parameters, and spectral profiles, for the confirmation of the existence of two botanically different poplar types. All investigated Serbian propolis samples were characterized with specific chemical patterns and were classified in two main botanical varieties, so-called orange and blue. The results confirmed that the applied methods have a potential to be used for the discrimination of complex natural products such as propolis.
T2  - Journal of Apicultural Research
T1  - Cyclic voltammetry and UV/Vis spectroscopy in combination with multivariate data analysis for the assessment of authenticity of poplar type propolis
VL  - 56
IS  - 5
SP  - 559
EP  - 568
DO  - 10.1080/00218839.2017.1357217
ER  - 

@article{
author = "Ristivojević, Petar and Trifković, Jelena Đ. and Stanković, Dalibor M. and Radoicic, Aleksandra and Manojlović, Dragan D. and Milojković-Opsenica, Dušanka M.",
year = "2017",
abstract = "Propolis, as a beneficial natural product, has found application in the food and pharmaceutical industries as a food preservative, active packaging material as well as a main component of propolis containing products. Quality control of propolis has thus gained in importance. We used simple, fast, and low-cost techniques such as UV/Vis spectrophotometry and cyclic voltammetry applied in combination with principal component analysis to confirm the presence of two botanical sub-types of propolis. Cyclic voltammetry, as a green, sensitive, and convenient technique suitable for investigation of chemical profile, together with multivariate chemometrics technique, was used for the first time for characterization and classification of propolis. UV/Vis spectroscopy was applied in two aspects, absorption at certain wavelength for the quantitative determination of analytes, i.e. determination of quality control parameters, and spectral profiles, for the confirmation of the existence of two botanically different poplar types. All investigated Serbian propolis samples were characterized with specific chemical patterns and were classified in two main botanical varieties, so-called orange and blue. The results confirmed that the applied methods have a potential to be used for the discrimination of complex natural products such as propolis.",
journal = "Journal of Apicultural Research",
title = "Cyclic voltammetry and UV/Vis spectroscopy in combination with multivariate data analysis for the assessment of authenticity of poplar type propolis",
volume = "56",
number = "5",
pages = "559-568",
doi = "10.1080/00218839.2017.1357217"
}

Ristivojević, P., Trifković, J. Đ., Stanković, D. M., Radoicic, A., Manojlović, D. D.,& Milojković-Opsenica, D. M.. (2017). Cyclic voltammetry and UV/Vis spectroscopy in combination with multivariate data analysis for the assessment of authenticity of poplar type propolis. in Journal of Apicultural Research, 56(5), 559-568.
https://doi.org/10.1080/00218839.2017.1357217

Ristivojević P, Trifković JĐ, Stanković DM, Radoicic A, Manojlović DD, Milojković-Opsenica DM. Cyclic voltammetry and UV/Vis spectroscopy in combination with multivariate data analysis for the assessment of authenticity of poplar type propolis. in Journal of Apicultural Research. 2017;56(5):559-568.
doi:10.1080/00218839.2017.1357217 .

Ristivojević, Petar, Trifković, Jelena Đ., Stanković, Dalibor M., Radoicic, Aleksandra, Manojlović, Dragan D., Milojković-Opsenica, Dušanka M., "Cyclic voltammetry and UV/Vis spectroscopy in combination with multivariate data analysis for the assessment of authenticity of poplar type propolis" in Journal of Apicultural Research, 56, no. 5 (2017):559-568,
https://doi.org/10.1080/00218839.2017.1357217 . .

TY  - JOUR
AU  - Lenhardt, Lea I.
AU  - Zeković, Ivana Lj.
AU  - Dramićanin, Tatjana
AU  - Tešić, Živoslav
AU  - Milojković-Opsenica, Dušanka M.
AU  - Dramićanin, Miroslav
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7065
AB  - In recent years, the potential of Fourier-transform infrared spectroscopy coupled with different chemometric tools in food analysis has been established. This technique is rapid, low cost, and reliable and requires little sample preparation. In this work, 130 Serbian unifloral honey samples (linden, acacia, and sunflower types) were analyzed using attenuated total reflectance infrared spectroscopy (ATR-IR). For each spectrum, 64 scans were recorded in wavenumbers between 4000 and 500 cm(-1) and at a spectral resolution of 4 cm(-1). These spectra were analyzed using principal component analysis (PCA), and calculated principal components were then used for support vector machine (SVM) training. In this way, the pattern-recognition tool is obtained for building a classification model for determining the botanical origin of honey. The PCA was used to analyze results and to see if the separation between groups of different types of honeys exists. Using the SVM, the classification model was built and classification errors were acquired. It has been observed that this technique is adequate for determining the botanical origin of honey with a success rate of 98.6%. Based on these results, it can be concluded that this technique offers many possibilities for future rapid qualitative analysis of honey.
T2  - Physica Scripta
T1  - Authentication of the botanical origin of unifloral honey by infrared spectroscopy coupled with support vector machine algorithm
VL  - T162
DO  - 10.1088/0031-8949/2014/T162/014042
ER  - 

@article{
author = "Lenhardt, Lea I. and Zeković, Ivana Lj. and Dramićanin, Tatjana and Tešić, Živoslav and Milojković-Opsenica, Dušanka M. and Dramićanin, Miroslav",
year = "2014",
abstract = "In recent years, the potential of Fourier-transform infrared spectroscopy coupled with different chemometric tools in food analysis has been established. This technique is rapid, low cost, and reliable and requires little sample preparation. In this work, 130 Serbian unifloral honey samples (linden, acacia, and sunflower types) were analyzed using attenuated total reflectance infrared spectroscopy (ATR-IR). For each spectrum, 64 scans were recorded in wavenumbers between 4000 and 500 cm(-1) and at a spectral resolution of 4 cm(-1). These spectra were analyzed using principal component analysis (PCA), and calculated principal components were then used for support vector machine (SVM) training. In this way, the pattern-recognition tool is obtained for building a classification model for determining the botanical origin of honey. The PCA was used to analyze results and to see if the separation between groups of different types of honeys exists. Using the SVM, the classification model was built and classification errors were acquired. It has been observed that this technique is adequate for determining the botanical origin of honey with a success rate of 98.6%. Based on these results, it can be concluded that this technique offers many possibilities for future rapid qualitative analysis of honey.",
journal = "Physica Scripta",
title = "Authentication of the botanical origin of unifloral honey by infrared spectroscopy coupled with support vector machine algorithm",
volume = "T162",
doi = "10.1088/0031-8949/2014/T162/014042"
}

Lenhardt, L. I., Zeković, I. Lj., Dramićanin, T., Tešić, Ž., Milojković-Opsenica, D. M.,& Dramićanin, M.. (2014). Authentication of the botanical origin of unifloral honey by infrared spectroscopy coupled with support vector machine algorithm. in Physica Scripta, T162.
https://doi.org/10.1088/0031-8949/2014/T162/014042

Lenhardt LI, Zeković IL, Dramićanin T, Tešić Ž, Milojković-Opsenica DM, Dramićanin M. Authentication of the botanical origin of unifloral honey by infrared spectroscopy coupled with support vector machine algorithm. in Physica Scripta. 2014;T162.
doi:10.1088/0031-8949/2014/T162/014042 .

Lenhardt, Lea I., Zeković, Ivana Lj., Dramićanin, Tatjana, Tešić, Živoslav, Milojković-Opsenica, Dušanka M., Dramićanin, Miroslav, "Authentication of the botanical origin of unifloral honey by infrared spectroscopy coupled with support vector machine algorithm" in Physica Scripta, T162 (2014),
https://doi.org/10.1088/0031-8949/2014/T162/014042 . .