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Artikel ; Online: Assessment of Mercury Level in Local Polish and Imported Honeys with Use of Direct Mercury Analyzer

Tomczyk Monika / Kusibab Julita / Zachara Alicja / Dżugan Małgorzata

Journal of Apicultural Science, Vol 67, Iss 1, Pp 5-

2023 Band 13

Abstract: Mercury is a toxic metal which causes several serious health effects including kidney damage, anxiety depression and peripheral neuropathy, and because of its high volatility assessment in solid samples is problematic. In this study, forty-five samples ... ...

Abstract	Mercury is a toxic metal which causes several serious health effects including kidney damage, anxiety depression and peripheral neuropathy, and because of its high volatility assessment in solid samples is problematic. In this study, forty-five samples of local Polish and imported honeys were analyzed by Direct Mercury Analyzer (DMA) for the determination of mercury content. The honey contamination was assessed regarding honey variety and country of origin. Hg level in all tested samples was found to not exceed the 0.81 μg/kg which was below 10% of the applicable law UE limit. Moreover, no statistically significant differences were found in the variety or geographical origin. The study concluded that the Direct Mercury Analyzer (DMA) instrument proved to be an excellent tool for screening mercury in honeys because of its simplicity, rapidity, low detection limit, accuracy and precision and no sample preparation.
Schlagwörter	dma ; honey ; mercury ; Zoology ; QL1-991
Thema/Rubrik (Code)	500
Sprache	Englisch
Erscheinungsdatum	2023-06-01T00:00:00Z
Verlag	Sciendo
Dokumenttyp	Artikel ; Online
Datenquelle	BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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Artikel: Assessing the Antimicrobial Properties of Honey Protein Components through In Silico Comparative Peptide Composition and Distribution Analysis.

Łyskowski, Andrzej / Miłek, Michał / Dżugan, Małgorzata

Antibiotics (Basel, Switzerland)

2023 Band 12, Heft 5

Abstract: The availability of reference proteomes for two honeybee species ( ...

Abstract	The availability of reference proteomes for two honeybee species (
Sprache	Englisch
Erscheinungsdatum	2023-04-28
Erscheinungsland	Switzerland
Dokumenttyp	Journal Article
ZDB-ID	2681345-2
ISSN	2079-6382
ISSN	2079-6382
DOI	10.3390/antibiotics12050830
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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Artikel ; Online: Application of Ultrasonic or Microwave Radiation to Delay Crystallization and Liquefy Solid Honey

Sidor Ewelina / Tomczyk Monika / Dżugan Małgorzata

Journal of Apicultural Science, Vol 65, Iss 2, Pp 243-

2021 Band 253

Abstract: Crystallization of honey is a natural process occurring during honey storage and forces beekeepers to practice the decrystallization process, which mainly concerns honey heating. The aim of this study was to examine the possible use of ultrasounds or ... ...

Abstract	Crystallization of honey is a natural process occurring during honey storage and forces beekeepers to practice the decrystallization process, which mainly concerns honey heating. The aim of this study was to examine the possible use of ultrasounds or microwave radiation to delay the crystallization of honey and to liquefy crystallized honeys while maintaining their biological activity. Lime, acacia and multifloral honeys obtained from a local apiary were used. Fresh honeys were pretreated through ultrasounds (40 kHz, for 5 and 20 min) or microwaves (800 W, 4 x 30s) in order to obtain samples U5, U20 and M, respectively. Experimental and control samples were stored for twelve months at room temperature (20±2°C) without light. Crystallized honey was liquefied through the same methods of ultrasounds (sample U5* and U20) and microwaves (sample M). Naturally crystallized honeys were used as the controls. For fixed (U5, U20 and M) and decrystallized (U5, U20, M*) honeys, the water content (refractometrically), antioxidant properties (DPPH method), total phenolics content (Folin-Ciocalteu method) and enzymatic activity (diastase, α-glucosidase, β-galactosidase and α-mannosidase) were determined. The analyzed physicochemical parameters for both fixed and liquefied honeys did not differ significantly (P>0.05) in comparison to the control honey. Moreover, the decrystallization process increased the antioxidant activity of all tested honeys. The smallest changes in honey properties to ultrasonic treatments were observed, and this method was recommended to delay the crystallization process and significantly accelerate the liquefaction time of solid honeys without compromising its quality.
Schlagwörter	antioxidant activity ; bee honey ; decrystallization ; ultrasounds ; Zoology ; QL1-991
Thema/Rubrik (Code)	660
Sprache	Englisch
Erscheinungsdatum	2021-12-01T00:00:00Z
Verlag	Sciendo
Dokumenttyp	Artikel ; Online
Datenquelle	BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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Artikel ; Online: Drone Brood Homogenate as Natural Remedy for Treating Health Care Problem: A Scientific and Practical Approach.

Sidor, Ewelina / Dżugan, Małgorzata

Molecules (Basel, Switzerland)

2020 Band 25, Heft 23

Abstract: Drone brood homogenate is a little-known bee product used in folk medicine to treat various health problems. It is a very nutritious milky substance with high content of nutrients: proteins, lipids, fatty acids, carbohydrates, vitamins (A, B, E and D), ... ...

Abstract	Drone brood homogenate is a little-known bee product used in folk medicine to treat various health problems. It is a very nutritious milky substance with high content of nutrients: proteins, lipids, fatty acids, carbohydrates, vitamins (A, B, E and D), and minerals. Moreover, when collected on early stage of larvae development, it is, most of all, rich source of sex hormone (testosterone, progesterone and estradiol). Some beekeepers consider drone brood as a waste product, although in some countries they use it to fight
Mesh-Begriff(e)	Animals ; Bees/metabolism ; Dietary Supplements ; Gonadal Steroid Hormones/therapeutic use ; Humans ; Medicine, Traditional ; Nutrients/therapeutic use ; Reproduction/drug effects ; Vitamins/therapeutic use ; Waxes/therapeutic use
Chemische Substanzen	Gonadal Steroid Hormones ; Vitamins ; Waxes
Sprache	Englisch
Erscheinungsdatum	2020-12-03
Erscheinungsland	Switzerland
Dokumenttyp	Journal Article ; Review
ZDB-ID	1413402-0
ISSN	1420-3049 ; 1431-5165 ; 1420-3049
ISSN (online)	1420-3049
ISSN	1431-5165 ; 1420-3049
DOI	10.3390/molecules25235699
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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Artikel ; Online: The Negligible Effect of Toxic Metal Accumulation in the Flowers of Melliferous Plants on the Mineral Composition of Monofloral Honeys

Tomczyk, Monika / Zaguła, Grzegorz / Kaczmarski, Mateusz / Puchalski, Czesław / Dżugan, Małgorzata

Agriculture. 2023 Jan. 22, v. 13, no. 2

2023

Abstract: The accumulation of heavy metals in plant pollen and nectar exposes pollinators to environmental contaminations. Although honeybees act as biofilters and impede the transfer of heavy metals to honey, possible antagonistic interactions could negatively ... ...

Abstract	The accumulation of heavy metals in plant pollen and nectar exposes pollinators to environmental contaminations. Although honeybees act as biofilters and impede the transfer of heavy metals to honey, possible antagonistic interactions could negatively affect the mineral composition of bee-processed nectar. The aim of this study was to assess the level of harmful metals (Cd, Pd, Hg, Al, Ni and Tl) in relation to essential macro- (K, Ca and Mg) and microelements (Mn, Fe, Zn, Cu and Se) in three melliferous plant species (n = 45)—rapeseed, dandelion, and goldenrod—using the ICP-OES method. Metal transferability to three types of monofloral honey (n = 45) produced from these plants was evaluated. Among the studied plants, goldenrod and dandelion were found to be Cd and Pb accumulators; however, regardless of the plant species, only traces of harmful metals were found in honey (<0.015 and <0.043 mg/kg, respectively). What is more, the adverse impact of accumulated toxic metals (Tl, Cd, Ni, Pb and Al) on Ca, Mg and K levels in plants was noted, though it was not reflected in honey. Our findings suggest that in moderately contaminated environments, toxic metals are not transferred to honey and do not disturb its beneficial mineral composition.
Schlagwörter	Taraxacum ; agriculture ; biofilters ; honey ; mineral content ; nectar ; pollen ; toxicity
Sprache	Englisch
Erscheinungsverlauf	2023-0122
Erscheinungsort	Multidisciplinary Digital Publishing Institute
Dokumenttyp	Artikel ; Online
ZDB-ID	2651678-0
ISSN	2077-0472
ISSN	2077-0472
DOI	10.3390/agriculture13020273
Datenquelle	NAL Katalog (AGRICOLA)

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Artikel: Antioxidant Activity of Frozen and Freeze-Dried Drone Brood Homogenate Regarding the Stage of Larval Development

Sidor, Ewelina / Miłek, Michał / Tomczyk, Monika / Dżugan, Małgorzata

Antioxidants. 2021 Apr. 22, v. 10, no. 5

2021

Abstract: Drone brood is a little-known and poorly studied bee product used and valued in the treatment of many diseases, including male infertility and women’s menopausal disorders. The aim of this study was to evaluate the antioxidant activity of drone brood ... ...

Abstract	Drone brood is a little-known and poorly studied bee product used and valued in the treatment of many diseases, including male infertility and women’s menopausal disorders. The aim of this study was to evaluate the antioxidant activity of drone brood depending on the stage of larval development and the method of preservation. Aqueous and ethanolic homogenate extracts of drone brood were assayed for antioxidant activity (with the DPPH, FRAP, and ABTS methods), polyphenol, and flavonoid content. The extracts’ polyphenolic profiles were compared by the HPTLC method. Drone brood has been shown to be more active in the earlier stages of development (between days 7–11), with a decline in antioxidant activity in the later period (by the 14th day). The freeze-drying process did not cause significant changes in the antioxidant activity of brood preparations converted to dry mass. Based on the higher activity of the aqueous compared to 70% ethanolic extracts, it was shown that the dominant fraction of brood consisted of hydrophilic antioxidants. The results obtained with different methods were highly correlated, excluding those from the ABTS assay. The HPTLC method showed that the polyphenol fraction of drone brood homogenate consisted mainly of phenolic acids and flavonoids. It was shown that drone brood has valuable antioxidant properties that can be compared with royal jelly.
Schlagwörter	antioxidant activity ; antioxidants ; flavonoids ; freeze drying ; hydrophilicity ; larval development ; male sterility ; menopause ; polyphenols ; royal jelly
Sprache	Englisch
Erscheinungsverlauf	2021-0422
Erscheinungsort	Multidisciplinary Digital Publishing Institute
Dokumenttyp	Artikel
Anmerkung	NAL-AP-2-clean
ZDB-ID	2704216-9
ISSN	2076-3921
ISSN	2076-3921
DOI	10.3390/antiox10050639
Datenquelle	NAL Katalog (AGRICOLA)

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Artikel: Application of Ultrasonic or Microwave Radiation to Delay Crystallization and Liquefy Solid Honey

Sidor, Ewelina / Tomczyk, Monika / Dżugan, Małgorzata

Journal of apicultural science. 2021 Dec. 28, v. 65, no. 2

2021

Abstract	Crystallization of honey is a natural process occurring during honey storage and forces beekeepers to practice the decrystallization process, which mainly concerns honey heating. The aim of this study was to examine the possible use of ultrasounds or microwave radiation to delay the crystallization of honey and to liquefy crystallized honeys while maintaining their biological activity. Lime, acacia and multifloral honeys obtained from a local apiary were used. Fresh honeys were pretreated through ultrasounds (40 kHz, for 5 and 20 min) or microwaves (800 W, 4 x 30s) in order to obtain samples U5, U20 and M, respectively. Experimental and control samples were stored for twelve months at room temperature (20±2°C) without light. Crystallized honey was liquefied through the same methods of ultrasounds (sample U5* and U20) and microwaves (sample M). Naturally crystallized honeys were used as the controls. For fixed (U5, U20 and M) and decrystallized (U5, U20, M*) honeys, the water content (refractometrically), antioxidant properties (DPPH method), total phenolics content (Folin-Ciocalteu method) and enzymatic activity (diastase, α-glucosidase, β-galactosidase and α-mannosidase) were determined. The analyzed physicochemical parameters for both fixed and liquefied honeys did not differ significantly (P>0.05) in comparison to the control honey. Moreover, the decrystallization process increased the antioxidant activity of all tested honeys. The smallest changes in honey properties to ultrasonic treatments were observed, and this method was recommended to delay the crystallization process and significantly accelerate the liquefaction time of solid honeys without compromising its quality.
Schlagwörter	Acacia ; ambient temperature ; amylases ; antioxidant activity ; antioxidants ; apiaries ; crystallization ; enzyme activity ; heat ; honey ; liquefaction ; microwave radiation ; ultrasonics ; water content
Sprache	Englisch
Erscheinungsverlauf	2021-1228
Umfang	p. 243-253.
Erscheinungsort	Sciendo
Dokumenttyp	Artikel
ZDB-ID	2814222-6
ISSN	2299-4831
ISSN	2299-4831
DOI	10.2478/jas-2021-0027
Datenquelle	NAL Katalog (AGRICOLA)

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Artikel: The Antioxidant, Antibacterial and Anti-Biofilm Properties of Rapeseed Creamed Honey Enriched with Selected Plant Superfoods.

Miłek, Michał / Ciszkowicz, Ewa / Sidor, Ewelina / Hęclik, Joanna / Lecka-Szlachta, Katarzyna / Dżugan, Małgorzata

Antibiotics (Basel, Switzerland)

2023 Band 12, Heft 2

Abstract: The aim of the study is to evaluate the effect of the addition of selected fruits and herbs belonging to the "superfoods" category for the bioactivity of a rapeseed honey matrix. Flavored creamed honeys with nine types of various additives (2 and 4% of ... ...

Abstract	The aim of the study is to evaluate the effect of the addition of selected fruits and herbs belonging to the "superfoods" category for the bioactivity of a rapeseed honey matrix. Flavored creamed honeys with nine types of various additives (2 and 4% of content) were prepared and analyzed for the content of total phenols, flavonoids, antioxidant (FRAP, DPPH and ABTS) and antibacterial activity against four strains of bacteria. Additionally, the impact of three months of storage on the antioxidant properties of the products obtained was examined. The significant dose-dependent increase in the content of bioactive ingredients and antioxidant capacity in spiced honeys, as compared to control honey, was observed. The highest enrichment was obtained for the addition of powdered sea buckthorn leaves and black raspberry fruits. Honey with the addition of sea buckthorn leaves inhibited the growth of
Sprache	Englisch
Erscheinungsdatum	2023-01-22
Erscheinungsland	Switzerland
Dokumenttyp	Journal Article
ZDB-ID	2681345-2
ISSN	2079-6382
ISSN	2079-6382
DOI	10.3390/antibiotics12020235
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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Artikel ; Online: Chemical Composition and Bioactivity of Laboratory-Fermented Bee Pollen in Comparison with Natural Bee Bread.

Miłek, Michał / Mołoń, Mateusz / Kula-Maximenko, Monika / Sidor, Ewelina / Zaguła, Grzegorz / Dżugan, Małgorzata

Biomolecules

2023 Band 13, Heft 7

Abstract: Bee bread is a valuable product obtained from the hive on a relatively small scale, while bee pollen is more easily available. Therefore, an effective laboratory method of converting pollen into a bee bread substitute is desired. The aim of the research ... ...

Abstract	Bee bread is a valuable product obtained from the hive on a relatively small scale, while bee pollen is more easily available. Therefore, an effective laboratory method of converting pollen into a bee bread substitute is desired. The aim of the research was to verify the influence of selected factors (temperature, ultrasound) on the quality of obtained product using
Mesh-Begriff(e)	Animals ; Bees ; Propolis ; Saccharomyces cerevisiae ; Antioxidants/analysis ; Pollen/chemistry ; Polyphenols/analysis
Chemische Substanzen	Propolis (9009-62-5) ; Antioxidants ; Polyphenols
Sprache	Englisch
Erscheinungsdatum	2023-06-22
Erscheinungsland	Switzerland
Dokumenttyp	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2701262-1
ISSN	2218-273X ; 2218-273X
ISSN (online)	2218-273X
ISSN	2218-273X
DOI	10.3390/biom13071025
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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Artikel ; Online: Tracking of Thermal, Physicochemical, and Biological Parameters of a Long-Term Stored Honey Artificially Adulterated with Sugar Syrups.

Tomczyk, Monika / Czerniecka-Kubicka, Anna / Miłek, Michał / Sidor, Ewelina / Dżugan, Małgorzata

Molecules (Basel, Switzerland)

2023 Band 28, Heft 4

Abstract: The growing phenomenon of honey adulteration prompts the search for simple methods to confirm the authenticity of honey. The aim of the study was to evaluate the changes in thermal characteristics, physicochemical parameters, antioxidant and enzymatic ... ...

Abstract	The growing phenomenon of honey adulteration prompts the search for simple methods to confirm the authenticity of honey. The aim of the study was to evaluate the changes in thermal characteristics, physicochemical parameters, antioxidant and enzymatic activity of honey subjected to artificial adulteration. Two series of products were prepared with the use of two different sugar syrups with an increasing dosage of adulterant (0 to 30%). After 24 months of storage, the quality of adulterated samples (partially crystallized) was assessed in comparison to the control honey (solid). Used adulteration changed physicochemical parameters and reduced antioxidant and enzymatic activity of honey (
Mesh-Begriff(e)	Honey/analysis ; Sugars ; Antioxidants ; Food Contamination/analysis ; Carbohydrates
Chemische Substanzen	Sugars ; Antioxidants ; Carbohydrates
Sprache	Englisch
Erscheinungsdatum	2023-02-11
Erscheinungsland	Switzerland
Dokumenttyp	Journal Article
ZDB-ID	1413402-0
ISSN	1420-3049 ; 1431-5165 ; 1420-3049
ISSN (online)	1420-3049
ISSN	1431-5165 ; 1420-3049
DOI	10.3390/molecules28041736
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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