TY  - JOUR
AU  - Brčić-Karačonji, Irena
AU  - Jurica, Karlo
AU  - Gašić, Uroš M.
AU  - Dramićanin, Aleksandra M.
AU  - Tešić, Živoslav Lj.
AU  - Milojković-Opsenica, Dušanka
PY  - 2022
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/5014
AB  - The strawberry tree (Arbutus unedo L., Ericaceae family) is an evergreen Mediterranean
shrub whose leaves and fruits are used in traditional medicine due to their antioxidant, antimicrobial,
antidiabetic, diuretic, and antiproliferative properties. The health benefits are mainly attributed to the
presence of phenolic compounds. The aim of this study was to compare the phenolic profiles, total
phenolic content (TPC), and radical scavenging activity (RSA) of A. unedo leaves and fruits collected
at two locations in Croatia. Phenolic profiles were identified using an ultra-high-performance liquid
chromatograph (UHPLC) coupled with a hybrid mass spectrometer (LTQ Orbitrap MS). TPC was
determined by Folin–Ciocalteu’s assay, while RSA was investigated using DPPH reagent. A total of
64 phenolics (60 and 42 compounds in leaves and fruits, respectively) were identified. Hyperoside
and flavan-3-ols were predominant compounds in leaves, while gallocatechin and catechin were
the major compounds found in fruits. To the authors’ knowledge, 16 and 5 phenolics in leaves and
fruits, respectively, were reported for the first time. Principal component analysis (PCA) showed
that UHPLC-LTQ Orbitrap MS could be used to identify which phenolics were able to discriminate
samples regarding plant tissue and geographical origin. TPC in leaves and fruits were in the ranges of
67.07–104.74 and 16.78–25.86 mg gallic acid equivalents (GAE)/g dried weight (dw), respectively. RSA
for leaves and fruits were in the ranges of 408.92–430.98 and 74.30–104.04 µmol Trolox equivalents
(TE)/g dw, respectively. The number of identified phenolics was lower in fruits compared to leaves.
Such a large number of bioactive phenolics identified and the strong antioxidant activity pointed to
A. unedo as a promising health-promoting plant and natural food preservative.
PB  - MDPI
T2  - Plants
T1  - Comparative Study on the Phenolic Fingerprint and Antioxidant Activity of Strawberry Tree (Arbutus unedo L.) Leaves and Fruits
VL  - 11
IS  - 1
SP  - 25
DO  - 10.3390/plants11010025
ER  - 

@article{
author = "Brčić-Karačonji, Irena and Jurica, Karlo and Gašić, Uroš M. and Dramićanin, Aleksandra M. and Tešić, Živoslav Lj. and Milojković-Opsenica, Dušanka",
year = "2022",
abstract = "The strawberry tree (Arbutus unedo L., Ericaceae family) is an evergreen Mediterranean
shrub whose leaves and fruits are used in traditional medicine due to their antioxidant, antimicrobial,
antidiabetic, diuretic, and antiproliferative properties. The health benefits are mainly attributed to the
presence of phenolic compounds. The aim of this study was to compare the phenolic profiles, total
phenolic content (TPC), and radical scavenging activity (RSA) of A. unedo leaves and fruits collected
at two locations in Croatia. Phenolic profiles were identified using an ultra-high-performance liquid
chromatograph (UHPLC) coupled with a hybrid mass spectrometer (LTQ Orbitrap MS). TPC was
determined by Folin–Ciocalteu’s assay, while RSA was investigated using DPPH reagent. A total of
64 phenolics (60 and 42 compounds in leaves and fruits, respectively) were identified. Hyperoside
and flavan-3-ols were predominant compounds in leaves, while gallocatechin and catechin were
the major compounds found in fruits. To the authors’ knowledge, 16 and 5 phenolics in leaves and
fruits, respectively, were reported for the first time. Principal component analysis (PCA) showed
that UHPLC-LTQ Orbitrap MS could be used to identify which phenolics were able to discriminate
samples regarding plant tissue and geographical origin. TPC in leaves and fruits were in the ranges of
67.07–104.74 and 16.78–25.86 mg gallic acid equivalents (GAE)/g dried weight (dw), respectively. RSA
for leaves and fruits were in the ranges of 408.92–430.98 and 74.30–104.04 µmol Trolox equivalents
(TE)/g dw, respectively. The number of identified phenolics was lower in fruits compared to leaves.
Such a large number of bioactive phenolics identified and the strong antioxidant activity pointed to
A. unedo as a promising health-promoting plant and natural food preservative.",
publisher = "MDPI",
journal = "Plants",
title = "Comparative Study on the Phenolic Fingerprint and Antioxidant Activity of Strawberry Tree (Arbutus unedo L.) Leaves and Fruits",
volume = "11",
number = "1",
pages = "25",
doi = "10.3390/plants11010025"
}

Brčić-Karačonji, I., Jurica, K., Gašić, U. M., Dramićanin, A. M., Tešić, Ž. Lj.,& Milojković-Opsenica, D.. (2022). Comparative Study on the Phenolic Fingerprint and Antioxidant Activity of Strawberry Tree (Arbutus unedo L.) Leaves and Fruits. in Plants
MDPI., 11(1), 25.
https://doi.org/10.3390/plants11010025

Brčić-Karačonji I, Jurica K, Gašić UM, Dramićanin AM, Tešić ŽL, Milojković-Opsenica D. Comparative Study on the Phenolic Fingerprint and Antioxidant Activity of Strawberry Tree (Arbutus unedo L.) Leaves and Fruits. in Plants. 2022;11(1):25.
doi:10.3390/plants11010025 .

Brčić-Karačonji, Irena, Jurica, Karlo, Gašić, Uroš M., Dramićanin, Aleksandra M., Tešić, Živoslav Lj., Milojković-Opsenica, Dušanka, "Comparative Study on the Phenolic Fingerprint and Antioxidant Activity of Strawberry Tree (Arbutus unedo L.) Leaves and Fruits" in Plants, 11, no. 1 (2022):25,
https://doi.org/10.3390/plants11010025 . .

TY  - DATA
AU  - Brčić-Karačonji, Irena
AU  - Jurica, Karlo
AU  - Gašić, Uroš M.
AU  - Dramićanin, Aleksandra M.
AU  - Tešić, Živoslav Lj.
AU  - Milojković-Opsenica, Dušanka
PY  - 2021
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/5017
PB  - MDPI
T2  - Plants
T1  - Supplementary data for the article: Brčić-Karačonji, I.; Jurica, K.; Gašić, U. M.; Dramićanin, A. M.; Tešić, Ž. L.; Milojković-Opsenica, D. Comparative Study on the Phenolic Fingerprint and Antioxidant Activity of Strawberry Tree (Arbutus Unedo L.) Leaves and Fruits. Plants 2021, 11 (25). https://doi.org/10.3390/plants11010025.
UR  - https://hdl.handle.net/21.15107/rcub_cherry_5017
ER  - 

@misc{
author = "Brčić-Karačonji, Irena and Jurica, Karlo and Gašić, Uroš M. and Dramićanin, Aleksandra M. and Tešić, Živoslav Lj. and Milojković-Opsenica, Dušanka",
year = "2021",
publisher = "MDPI",
journal = "Plants",
title = "Supplementary data for the article: Brčić-Karačonji, I.; Jurica, K.; Gašić, U. M.; Dramićanin, A. M.; Tešić, Ž. L.; Milojković-Opsenica, D. Comparative Study on the Phenolic Fingerprint and Antioxidant Activity of Strawberry Tree (Arbutus Unedo L.) Leaves and Fruits. Plants 2021, 11 (25). https://doi.org/10.3390/plants11010025.",
url = "https://hdl.handle.net/21.15107/rcub_cherry_5017"
}

Brčić-Karačonji, I., Jurica, K., Gašić, U. M., Dramićanin, A. M., Tešić, Ž. Lj.,& Milojković-Opsenica, D.. (2021). Supplementary data for the article: Brčić-Karačonji, I.; Jurica, K.; Gašić, U. M.; Dramićanin, A. M.; Tešić, Ž. L.; Milojković-Opsenica, D. Comparative Study on the Phenolic Fingerprint and Antioxidant Activity of Strawberry Tree (Arbutus Unedo L.) Leaves and Fruits. Plants 2021, 11 (25). https://doi.org/10.3390/plants11010025.. in Plants
MDPI..
https://hdl.handle.net/21.15107/rcub_cherry_5017

Brčić-Karačonji I, Jurica K, Gašić UM, Dramićanin AM, Tešić ŽL, Milojković-Opsenica D. Supplementary data for the article: Brčić-Karačonji, I.; Jurica, K.; Gašić, U. M.; Dramićanin, A. M.; Tešić, Ž. L.; Milojković-Opsenica, D. Comparative Study on the Phenolic Fingerprint and Antioxidant Activity of Strawberry Tree (Arbutus Unedo L.) Leaves and Fruits. Plants 2021, 11 (25). https://doi.org/10.3390/plants11010025.. in Plants. 2021;.
https://hdl.handle.net/21.15107/rcub_cherry_5017 .

Brčić-Karačonji, Irena, Jurica, Karlo, Gašić, Uroš M., Dramićanin, Aleksandra M., Tešić, Živoslav Lj., Milojković-Opsenica, Dušanka, "Supplementary data for the article: Brčić-Karačonji, I.; Jurica, K.; Gašić, U. M.; Dramićanin, A. M.; Tešić, Ž. L.; Milojković-Opsenica, D. Comparative Study on the Phenolic Fingerprint and Antioxidant Activity of Strawberry Tree (Arbutus Unedo L.) Leaves and Fruits. Plants 2021, 11 (25). https://doi.org/10.3390/plants11010025." in Plants (2021),
https://hdl.handle.net/21.15107/rcub_cherry_5017 .

TY  - JOUR
AU  - Dimkić, Ivica
AU  - Gobin, Ivana
AU  - Begić, Gabrijela
AU  - Repac Antić, Davorka
AU  - Ristivojević, Petar
AU  - Jurica, Karlo
AU  - Berić, Tanja
AU  - Lozo, Jelena
AU  - Abram, Maja
AU  - Stanković, Slaviša
PY  - 2021
UR  - https://www.sciencedirect.com/science/article/pii/S2210803321000257
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/4525
AB  - Antibacterial and antibiofilm efficacy through a synergistic effect of herbal leaf extracts of bearberry (BE), bearberry tea (BTE), parsley (PE), and the strawberry tree (STE) was evaluated to discover an alternative approach to control urinary tract infections caused by Enterococci. UHPLC–DAD MS/MS analysis indicated that herbal extracts were rich in ellagic and gallic acids, catechin, quercetin, and arbutin, which are strong antioxidants. Mostly, Enterococcus faecalis isolates showed resistance only to gentamicin and/or norfloxacin (26.3 %) and moderate biofilm production (31.5 %), while 12 isolates of Enterococcus faecium showed multiple antibiotic resistance. The minimum inhibitory concentration for the majority of isolates was 1.25 mg ml−1 for STE, but 2.5 mg ml−1 for BE and BTE. Although individual extracts gave higher MIC values, for most isolates, a synergistic effect at lower concentrations was achieved, when BE or BTE (0.625 mg ml−1) was combined with STE (0.31 mg ml−1). The BTE extract was shown to have the strongest individual effect on initial adhesiveness and on biofilm formation to all selected isolates, while the synergism of BTE and STE caused significant biofilm inhibition at all concentrations tested. The synergistic effect achieved of the tested extract combinations might be a starting point in the development of alternative products, effective against antibiotic resistant Enterococcus isolates.
PB  - Elsevier GmbH
T2  - Journal of Herbal Medicine
T2  - Journal of Herbal MedicineJournal of Herbal Medicine
T1  - Antibacterial activity of herbal extracts towards uropathogenic Enterococcus isolates as a natural approach in control of urinary tract infections
VL  - 28
SP  - 100445
DO  - 10.1016/j.hermed.2021.100445
ER  - 

@article{
author = "Dimkić, Ivica and Gobin, Ivana and Begić, Gabrijela and Repac Antić, Davorka and Ristivojević, Petar and Jurica, Karlo and Berić, Tanja and Lozo, Jelena and Abram, Maja and Stanković, Slaviša",
year = "2021",
abstract = "Antibacterial and antibiofilm efficacy through a synergistic effect of herbal leaf extracts of bearberry (BE), bearberry tea (BTE), parsley (PE), and the strawberry tree (STE) was evaluated to discover an alternative approach to control urinary tract infections caused by Enterococci. UHPLC–DAD MS/MS analysis indicated that herbal extracts were rich in ellagic and gallic acids, catechin, quercetin, and arbutin, which are strong antioxidants. Mostly, Enterococcus faecalis isolates showed resistance only to gentamicin and/or norfloxacin (26.3 %) and moderate biofilm production (31.5 %), while 12 isolates of Enterococcus faecium showed multiple antibiotic resistance. The minimum inhibitory concentration for the majority of isolates was 1.25 mg ml−1 for STE, but 2.5 mg ml−1 for BE and BTE. Although individual extracts gave higher MIC values, for most isolates, a synergistic effect at lower concentrations was achieved, when BE or BTE (0.625 mg ml−1) was combined with STE (0.31 mg ml−1). The BTE extract was shown to have the strongest individual effect on initial adhesiveness and on biofilm formation to all selected isolates, while the synergism of BTE and STE caused significant biofilm inhibition at all concentrations tested. The synergistic effect achieved of the tested extract combinations might be a starting point in the development of alternative products, effective against antibiotic resistant Enterococcus isolates.",
publisher = "Elsevier GmbH",
journal = "Journal of Herbal Medicine, Journal of Herbal MedicineJournal of Herbal Medicine",
title = "Antibacterial activity of herbal extracts towards uropathogenic Enterococcus isolates as a natural approach in control of urinary tract infections",
volume = "28",
pages = "100445",
doi = "10.1016/j.hermed.2021.100445"
}

Dimkić, I., Gobin, I., Begić, G., Repac Antić, D., Ristivojević, P., Jurica, K., Berić, T., Lozo, J., Abram, M.,& Stanković, S.. (2021). Antibacterial activity of herbal extracts towards uropathogenic Enterococcus isolates as a natural approach in control of urinary tract infections. in Journal of Herbal Medicine
Elsevier GmbH., 28, 100445.
https://doi.org/10.1016/j.hermed.2021.100445

Dimkić I, Gobin I, Begić G, Repac Antić D, Ristivojević P, Jurica K, Berić T, Lozo J, Abram M, Stanković S. Antibacterial activity of herbal extracts towards uropathogenic Enterococcus isolates as a natural approach in control of urinary tract infections. in Journal of Herbal Medicine. 2021;28:100445.
doi:10.1016/j.hermed.2021.100445 .

Dimkić, Ivica, Gobin, Ivana, Begić, Gabrijela, Repac Antić, Davorka, Ristivojević, Petar, Jurica, Karlo, Berić, Tanja, Lozo, Jelena, Abram, Maja, Stanković, Slaviša, "Antibacterial activity of herbal extracts towards uropathogenic Enterococcus isolates as a natural approach in control of urinary tract infections" in Journal of Herbal Medicine, 28 (2021):100445,
https://doi.org/10.1016/j.hermed.2021.100445 . .

TY  - DATA
AU  - Dimkić, Ivica
AU  - Gobin, Ivana
AU  - Begić, Gabrijela
AU  - Repac Antić, Davorka 
AU  - Ristivojević, Petar
AU  - Jurica, Karlo
AU  - Berić, Tanja
AU  - Lozo, Jelena
AU  - Abram, Maja
AU  - Stanković, Slaviša
PY  - 2021
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/4526
PB  - Elsevier GmbH
T2  - Journal of Herbal Medicine
T1  - Supplementary data for the article: Dimkić, I.; Gobin, I.; Begić, G.; Antić, D. R.; Ristivojević, P.; Jurica, K.; Berić, T.; Lozo, J.; Abram, M.; Stanković, S. Antibacterial Activity of Herbal Extracts towards Uropathogenic Enterococcus Isolates as a Natural Approach in Control of Urinary Tract Infections. Journal of Herbal Medicine 2021, 28, 100445. https://doi.org/10.1016/j.hermed.2021.100445.
UR  - https://hdl.handle.net/21.15107/rcub_cherry_4526
ER  - 

@misc{
author = "Dimkić, Ivica and Gobin, Ivana and Begić, Gabrijela and Repac Antić, Davorka  and Ristivojević, Petar and Jurica, Karlo and Berić, Tanja and Lozo, Jelena and Abram, Maja and Stanković, Slaviša",
year = "2021",
publisher = "Elsevier GmbH",
journal = "Journal of Herbal Medicine",
title = "Supplementary data for the article: Dimkić, I.; Gobin, I.; Begić, G.; Antić, D. R.; Ristivojević, P.; Jurica, K.; Berić, T.; Lozo, J.; Abram, M.; Stanković, S. Antibacterial Activity of Herbal Extracts towards Uropathogenic Enterococcus Isolates as a Natural Approach in Control of Urinary Tract Infections. Journal of Herbal Medicine 2021, 28, 100445. https://doi.org/10.1016/j.hermed.2021.100445.",
url = "https://hdl.handle.net/21.15107/rcub_cherry_4526"
}

Dimkić, I., Gobin, I., Begić, G., Repac Antić, D., Ristivojević, P., Jurica, K., Berić, T., Lozo, J., Abram, M.,& Stanković, S.. (2021). Supplementary data for the article: Dimkić, I.; Gobin, I.; Begić, G.; Antić, D. R.; Ristivojević, P.; Jurica, K.; Berić, T.; Lozo, J.; Abram, M.; Stanković, S. Antibacterial Activity of Herbal Extracts towards Uropathogenic Enterococcus Isolates as a Natural Approach in Control of Urinary Tract Infections. Journal of Herbal Medicine 2021, 28, 100445. https://doi.org/10.1016/j.hermed.2021.100445.. in Journal of Herbal Medicine
Elsevier GmbH..
https://hdl.handle.net/21.15107/rcub_cherry_4526

Dimkić I, Gobin I, Begić G, Repac Antić D, Ristivojević P, Jurica K, Berić T, Lozo J, Abram M, Stanković S. Supplementary data for the article: Dimkić, I.; Gobin, I.; Begić, G.; Antić, D. R.; Ristivojević, P.; Jurica, K.; Berić, T.; Lozo, J.; Abram, M.; Stanković, S. Antibacterial Activity of Herbal Extracts towards Uropathogenic Enterococcus Isolates as a Natural Approach in Control of Urinary Tract Infections. Journal of Herbal Medicine 2021, 28, 100445. https://doi.org/10.1016/j.hermed.2021.100445.. in Journal of Herbal Medicine. 2021;.
https://hdl.handle.net/21.15107/rcub_cherry_4526 .

Dimkić, Ivica, Gobin, Ivana, Begić, Gabrijela, Repac Antić, Davorka , Ristivojević, Petar, Jurica, Karlo, Berić, Tanja, Lozo, Jelena, Abram, Maja, Stanković, Slaviša, "Supplementary data for the article: Dimkić, I.; Gobin, I.; Begić, G.; Antić, D. R.; Ristivojević, P.; Jurica, K.; Berić, T.; Lozo, J.; Abram, M.; Stanković, S. Antibacterial Activity of Herbal Extracts towards Uropathogenic Enterococcus Isolates as a Natural Approach in Control of Urinary Tract Infections. Journal of Herbal Medicine 2021, 28, 100445. https://doi.org/10.1016/j.hermed.2021.100445." in Journal of Herbal Medicine (2021),
https://hdl.handle.net/21.15107/rcub_cherry_4526 .

TY  - JOUR
AU  - Jurič, Andreja
AU  - Gašić, Gašić
AU  - Brčić-Karačonji, Irena
AU  - Jurica, Karlo
AU  - Milojković-Opsenica, Dušanka
PY  - 2020
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/3952
AB  - Despite of the many beneficial health effects of strawberry tree (Arbutus unedo L.) honey due to its strong antioxidant activity derived mostly from polyphenols, a detailed phenolic profile has not been previously studied. The aims of this study were to identify the phenolic compounds, determine the total phenolic content (TPC) and evaluate the radical scavenging activity (RSA) of strawberry tree honey from south Croatia. Fifty-two polyphenolics (twenty-seven phenolic acids and twenty-five flavonoids) were identified using ultra-high-performance liquid chromatograph (UHPLC) coupled to a hybrid mass spectrometer (LTQ Orbitrap MS). Our overall results point to higher TPC (1038 mg gallic acid equivalents per kg of honey) and stronger RSA (3.32 mmol Trolox equivalents per kg of honey) compared to other monofloral honeys. Due to the presence of large quantities of polyphenolic compounds, strawberry tree honey may have great potential as a health promoting food.
PB  - Belgrade : Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - The phenolic profile of strawberry tree (Arbutus unedo L.) honey
VL  - 85
IS  - 3
SP  - 1
EP  - 10
DO  - 10.2298/JSC191217018J
ER  - 

@article{
author = "Jurič, Andreja and Gašić, Gašić and Brčić-Karačonji, Irena and Jurica, Karlo and Milojković-Opsenica, Dušanka",
year = "2020",
abstract = "Despite of the many beneficial health effects of strawberry tree (Arbutus unedo L.) honey due to its strong antioxidant activity derived mostly from polyphenols, a detailed phenolic profile has not been previously studied. The aims of this study were to identify the phenolic compounds, determine the total phenolic content (TPC) and evaluate the radical scavenging activity (RSA) of strawberry tree honey from south Croatia. Fifty-two polyphenolics (twenty-seven phenolic acids and twenty-five flavonoids) were identified using ultra-high-performance liquid chromatograph (UHPLC) coupled to a hybrid mass spectrometer (LTQ Orbitrap MS). Our overall results point to higher TPC (1038 mg gallic acid equivalents per kg of honey) and stronger RSA (3.32 mmol Trolox equivalents per kg of honey) compared to other monofloral honeys. Due to the presence of large quantities of polyphenolic compounds, strawberry tree honey may have great potential as a health promoting food.",
publisher = "Belgrade : Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "The phenolic profile of strawberry tree (Arbutus unedo L.) honey",
volume = "85",
number = "3",
pages = "1-10",
doi = "10.2298/JSC191217018J"
}

Jurič, A., Gašić, G., Brčić-Karačonji, I., Jurica, K.,& Milojković-Opsenica, D.. (2020). The phenolic profile of strawberry tree (Arbutus unedo L.) honey. in Journal of the Serbian Chemical Society
Belgrade : Serbian Chemical Society., 85(3), 1-10.
https://doi.org/10.2298/JSC191217018J

Jurič A, Gašić G, Brčić-Karačonji I, Jurica K, Milojković-Opsenica D. The phenolic profile of strawberry tree (Arbutus unedo L.) honey. in Journal of the Serbian Chemical Society. 2020;85(3):1-10.
doi:10.2298/JSC191217018J .

Jurič, Andreja, Gašić, Gašić, Brčić-Karačonji, Irena, Jurica, Karlo, Milojković-Opsenica, Dušanka, "The phenolic profile of strawberry tree (Arbutus unedo L.) honey" in Journal of the Serbian Chemical Society, 85, no. 3 (2020):1-10,
https://doi.org/10.2298/JSC191217018J . .

TY  - JOUR
AU  - Jurica, Karlo
AU  - Brčić-Karačonji, Irena
AU  - Mikolić, Anja
AU  - Milojković-Opsenica, Dušanka
AU  - Benković, Vesna
AU  - Kopjar, Nevenka
PY  - 2018
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2194
AB  - Strawberry tree (Arbutus unedo L.) leaves have long been used in the traditional medicine of the Mediterranean region. One of their most bioactive constituents is the glycoside arbutin, whose presence makes A. unedo suitable as a potential substitute for bearberry [Arctostaphylos uva ursi (L.) Spreng] leaves, an herbal preparation widely used for treating urinary tract infections. The safety and biocompatibility of strawberry tree water leaf extract have not yet been documented well. This study estimated arbutin content in strawberry tree water leaf extract (STE) using high performance liquid chromatography. Furthermore, we performed an in vitro safety assessment of the 24 h exposure to three presumably non-toxic concentrations of standardized STE and arbutin in human peripheral blood lymphocytes using the apoptosis/necrosis assay, the alkaline comet assay, and the cytokinesis-block micronucleus cytome assay. The STE was also tested for total antioxidant capacity and lipid peroxidation. At a concentration corresponding to the maximum allowable daily intake of arbutin, the tested extract was not cytotoxic, had a negligible potential for causing primary DNA damage and even hindered micronuclei formation in lymphocytes. It also showed a valuable antioxidant capacity, and did not exert marked lipid peroxidation. These promising results represent a solid frame for further development of STE-based herbal preparations. Although arbutin generally had a low DNA damaging potential, the slowing down of lymphocyte proliferation observed after 24 h of exposure points to a cytostatic effect, which merits further research.
PB  - Springer, Dordrecht
T2  - Cytotechnology
T1  - In vitro safety assessment of the strawberry tree (Arbutus unedo L.) water leaf extract and arbutin in human peripheral blood lymphocytes
VL  - 70
IS  - 4
SP  - 1261
EP  - 1278
DO  - 10.1007/s10616-018-0218-4
ER  - 

@article{
author = "Jurica, Karlo and Brčić-Karačonji, Irena and Mikolić, Anja and Milojković-Opsenica, Dušanka and Benković, Vesna and Kopjar, Nevenka",
year = "2018",
abstract = "Strawberry tree (Arbutus unedo L.) leaves have long been used in the traditional medicine of the Mediterranean region. One of their most bioactive constituents is the glycoside arbutin, whose presence makes A. unedo suitable as a potential substitute for bearberry [Arctostaphylos uva ursi (L.) Spreng] leaves, an herbal preparation widely used for treating urinary tract infections. The safety and biocompatibility of strawberry tree water leaf extract have not yet been documented well. This study estimated arbutin content in strawberry tree water leaf extract (STE) using high performance liquid chromatography. Furthermore, we performed an in vitro safety assessment of the 24 h exposure to three presumably non-toxic concentrations of standardized STE and arbutin in human peripheral blood lymphocytes using the apoptosis/necrosis assay, the alkaline comet assay, and the cytokinesis-block micronucleus cytome assay. The STE was also tested for total antioxidant capacity and lipid peroxidation. At a concentration corresponding to the maximum allowable daily intake of arbutin, the tested extract was not cytotoxic, had a negligible potential for causing primary DNA damage and even hindered micronuclei formation in lymphocytes. It also showed a valuable antioxidant capacity, and did not exert marked lipid peroxidation. These promising results represent a solid frame for further development of STE-based herbal preparations. Although arbutin generally had a low DNA damaging potential, the slowing down of lymphocyte proliferation observed after 24 h of exposure points to a cytostatic effect, which merits further research.",
publisher = "Springer, Dordrecht",
journal = "Cytotechnology",
title = "In vitro safety assessment of the strawberry tree (Arbutus unedo L.) water leaf extract and arbutin in human peripheral blood lymphocytes",
volume = "70",
number = "4",
pages = "1261-1278",
doi = "10.1007/s10616-018-0218-4"
}

Jurica, K., Brčić-Karačonji, I., Mikolić, A., Milojković-Opsenica, D., Benković, V.,& Kopjar, N.. (2018). In vitro safety assessment of the strawberry tree (Arbutus unedo L.) water leaf extract and arbutin in human peripheral blood lymphocytes. in Cytotechnology
Springer, Dordrecht., 70(4), 1261-1278.
https://doi.org/10.1007/s10616-018-0218-4

Jurica K, Brčić-Karačonji I, Mikolić A, Milojković-Opsenica D, Benković V, Kopjar N. In vitro safety assessment of the strawberry tree (Arbutus unedo L.) water leaf extract and arbutin in human peripheral blood lymphocytes. in Cytotechnology. 2018;70(4):1261-1278.
doi:10.1007/s10616-018-0218-4 .

Jurica, Karlo, Brčić-Karačonji, Irena, Mikolić, Anja, Milojković-Opsenica, Dušanka, Benković, Vesna, Kopjar, Nevenka, "In vitro safety assessment of the strawberry tree (Arbutus unedo L.) water leaf extract and arbutin in human peripheral blood lymphocytes" in Cytotechnology, 70, no. 4 (2018):1261-1278,
https://doi.org/10.1007/s10616-018-0218-4 . .

TY  - JOUR
AU  - Jurica, Karlo
AU  - Brčić-Karačonji, Irena
AU  - Šegan, Sandra B.
AU  - Milojković-Opsenica, Dušanka
AU  - Kremer, Dario
PY  - 2015
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2009
AB  - The phenolic glycoside arbutin and its metabolite with uroantiseptic activity hydroquinone occur naturally in the leaves of various medicinal plants and spices. In this study, an extraction procedure coupled with gas chromatography-mass spectrometry (GC-MS) was developed to determine arbutin and hydroquinone content in strawberry tree (Arbutus unedo L., Ericaceae) leaves. The method showed good linearity (R-2 gt 0.9987) in the tested concentration range (0.5-200 mu g mL(-1)), as well as good precision (RSD lt 5 %), analytical recovery (96.2-98.0 %), and sensitivity (limit of detection=0.009 and 0.004 mu g mL(-1) for arbutin and hydroquinone, respectively). The results obtained by the validated GC-MS method corresponded well to those obtained by high performance liquid chromatography (HPLC) method. The proposed method was then applied for determining arbutin and hydroquinone content in methanolic leaf extracts. The amount of arbutin in the leaves collected on the island of Kolocep (6.82 mg g(-1) dry weight) was found to be higher (t(paired)=43.57, t(c)=2.92) in comparison to the amount of arbutin in the leaves collected on the island of Mali Losinj (2.75 mg g(-1) dry weight). Hydroquinone was not detected in any of the samples. The analytical features of the proposed GC-MS method demonstrated that arbutin and hydroquinone could be determined alternatively by gas chromatography. Due to its wide concentration range, the method could also be suitable for arbutin and hydroquinone analysis in leaves of other plant families (Rosaceae, Lamiaceae, etc.).
PB  - Inst Medical Research & Occupational Health, Zagreb
T2  - Arhiv za higijenu rada i toksikologiju
T1  - Quantitative analysis of arbutin and hydroquinone in strawberry tree (Arbutus unedo L., Ericaceae) leaves by gas chromatography-mass spectrometry
VL  - 66
IS  - 3
SP  - 197
EP  - 202
DO  - 10.1515/aiht-2015-66-2696
ER  - 

@article{
author = "Jurica, Karlo and Brčić-Karačonji, Irena and Šegan, Sandra B. and Milojković-Opsenica, Dušanka and Kremer, Dario",
year = "2015",
abstract = "The phenolic glycoside arbutin and its metabolite with uroantiseptic activity hydroquinone occur naturally in the leaves of various medicinal plants and spices. In this study, an extraction procedure coupled with gas chromatography-mass spectrometry (GC-MS) was developed to determine arbutin and hydroquinone content in strawberry tree (Arbutus unedo L., Ericaceae) leaves. The method showed good linearity (R-2 gt 0.9987) in the tested concentration range (0.5-200 mu g mL(-1)), as well as good precision (RSD lt 5 %), analytical recovery (96.2-98.0 %), and sensitivity (limit of detection=0.009 and 0.004 mu g mL(-1) for arbutin and hydroquinone, respectively). The results obtained by the validated GC-MS method corresponded well to those obtained by high performance liquid chromatography (HPLC) method. The proposed method was then applied for determining arbutin and hydroquinone content in methanolic leaf extracts. The amount of arbutin in the leaves collected on the island of Kolocep (6.82 mg g(-1) dry weight) was found to be higher (t(paired)=43.57, t(c)=2.92) in comparison to the amount of arbutin in the leaves collected on the island of Mali Losinj (2.75 mg g(-1) dry weight). Hydroquinone was not detected in any of the samples. The analytical features of the proposed GC-MS method demonstrated that arbutin and hydroquinone could be determined alternatively by gas chromatography. Due to its wide concentration range, the method could also be suitable for arbutin and hydroquinone analysis in leaves of other plant families (Rosaceae, Lamiaceae, etc.).",
publisher = "Inst Medical Research & Occupational Health, Zagreb",
journal = "Arhiv za higijenu rada i toksikologiju",
title = "Quantitative analysis of arbutin and hydroquinone in strawberry tree (Arbutus unedo L., Ericaceae) leaves by gas chromatography-mass spectrometry",
volume = "66",
number = "3",
pages = "197-202",
doi = "10.1515/aiht-2015-66-2696"
}

Jurica, K., Brčić-Karačonji, I., Šegan, S. B., Milojković-Opsenica, D.,& Kremer, D.. (2015). Quantitative analysis of arbutin and hydroquinone in strawberry tree (Arbutus unedo L., Ericaceae) leaves by gas chromatography-mass spectrometry. in Arhiv za higijenu rada i toksikologiju
Inst Medical Research & Occupational Health, Zagreb., 66(3), 197-202.
https://doi.org/10.1515/aiht-2015-66-2696

Jurica K, Brčić-Karačonji I, Šegan SB, Milojković-Opsenica D, Kremer D. Quantitative analysis of arbutin and hydroquinone in strawberry tree (Arbutus unedo L., Ericaceae) leaves by gas chromatography-mass spectrometry. in Arhiv za higijenu rada i toksikologiju. 2015;66(3):197-202.
doi:10.1515/aiht-2015-66-2696 .

Jurica, Karlo, Brčić-Karačonji, Irena, Šegan, Sandra B., Milojković-Opsenica, Dušanka, Kremer, Dario, "Quantitative analysis of arbutin and hydroquinone in strawberry tree (Arbutus unedo L., Ericaceae) leaves by gas chromatography-mass spectrometry" in Arhiv za higijenu rada i toksikologiju, 66, no. 3 (2015):197-202,
https://doi.org/10.1515/aiht-2015-66-2696 . .