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Miłek M, Mołoń M, Kielar P, Sidor E, Bocian A, Marciniak-Lukasiak K, Pasternakiewicz A, Dżugan M. The Comparison of Honey Enriched with Laboratory Fermented Pollen vs. Natural Bee Bread in Terms of Nutritional and Antioxidant Properties, Protein In Vitro Bioaccessibility, and Its Genoprotective Effect in Yeast Cells. Molecules 2023; 28:5851. [PMID: 37570819 PMCID: PMC10420809 DOI: 10.3390/molecules28155851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 08/01/2023] [Accepted: 08/02/2023] [Indexed: 08/13/2023] Open
Abstract
The aim of the study was to compare the nutritional value and bioactivity of honey enriched with a 10% addition of natural bee bread and its substitutes obtained as a result of laboratory fermentation of bee pollen. Physicochemical parameters, antioxidant properties, as well as the bioaccessibility of proteins using an in vitro static digestion model were analyzed. The bioactivity of the obtained enriched honeys was tested using the yeast model. The research indicates the similarity of honeys with the addition of "artificial bee bread" to honey with natural ones. During in vitro digestion, good bioaccessibility of the protein from the tested products was demonstrated. The ability of the products to protect yeast cells against hydrogen superoxide-induced oxidative stress was demonstrated using a qualitative spot test, which was stronger in the case of enriched honey than in pure rapeseed control honey. Significant inhibition of the growth of both strains of yeast exposed to bee pollen-enriched honeys was also demonstrated. Furthermore, all tested samples showed significant genoprotective activity against the genotoxic effect of zeocin and the reduction of the number of DNA double-strand breaks by a minimum of 70% was observed.
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Affiliation(s)
- Michał Miłek
- Department of Chemistry and Food Toxicology, Institute of Food Technology and Nutrition, University of Rzeszow, Ćwiklińskiej 1a St., 35-601 Rzeszów, Poland; (E.S.); (A.P.); (M.D.)
| | - Mateusz Mołoń
- Institute of Biology, University of Rzeszów, 35-601 Rzeszów, Poland; (M.M.); (P.K.)
| | - Patrycja Kielar
- Institute of Biology, University of Rzeszów, 35-601 Rzeszów, Poland; (M.M.); (P.K.)
| | - Ewelina Sidor
- Department of Chemistry and Food Toxicology, Institute of Food Technology and Nutrition, University of Rzeszow, Ćwiklińskiej 1a St., 35-601 Rzeszów, Poland; (E.S.); (A.P.); (M.D.)
- Doctoral School, University of Rzeszów, Rejtana 16c, 35-959 Rzeszów, Poland
| | - Aleksandra Bocian
- Department of Biotechnology and Bioinformatics, Faculty of Chemistry, Rzeszów University of Technology, Powstańców Warszawy 6, 35-959 Rzeszow, Poland;
| | - Katarzyna Marciniak-Lukasiak
- Institute of Food Sciences, Faculty of Food Assessment and Technology, Warsaw University of Life Sciences (WULS-SGGW), Nowoursynowska 159c, 02-776 Warsaw, Poland;
| | - Anna Pasternakiewicz
- Department of Chemistry and Food Toxicology, Institute of Food Technology and Nutrition, University of Rzeszow, Ćwiklińskiej 1a St., 35-601 Rzeszów, Poland; (E.S.); (A.P.); (M.D.)
| | - Małgorzata Dżugan
- Department of Chemistry and Food Toxicology, Institute of Food Technology and Nutrition, University of Rzeszow, Ćwiklińskiej 1a St., 35-601 Rzeszów, Poland; (E.S.); (A.P.); (M.D.)
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Miłek M, Mołoń M, Kula-Maximenko M, Sidor E, Zaguła G, Dżugan M. Chemical Composition and Bioactivity of Laboratory-Fermented Bee Pollen in Comparison with Natural Bee Bread. Biomolecules 2023; 13:1025. [PMID: 37509061 PMCID: PMC10377425 DOI: 10.3390/biom13071025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 06/15/2023] [Accepted: 06/21/2023] [Indexed: 07/30/2023] Open
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 Lactobacillus rhamnosus inoculum. The composition of the fermented pollen was analyzed using Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES), Raman spectroscopy, and SDS-PAGE and compared to natural bee bread and the original pollen. In vitro biological activity was assessed as antioxidant activity using a yeast model (BY4741 and sod1∆ strains). Fermentation of pollen occurred spontaneously and after inoculation, as demonstrated by lower pH and higher lactic acid content. Raman spectroscopy and ICP-OES confirmed changes in composition compared to the initial pollen. Compared to bee bread, the fermented pollen showed a higher content of polyphenols and comparable antioxidant activity; moreover, it accelerated yeast growth rate. In addition, a protective effect was observed for Cu/Zn-superoxide dismutase 1 (sod1∆ yeast mutant exposed to hydrogen peroxide-induced oxidative stress). The higher fermentation temperature (25 °C) produces a more bee-bread-like product, while the use of ultrasound and starter culture seems to have no positive effect.
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Affiliation(s)
- Michał Miłek
- Department of Chemistry and Food Toxicology, Institute of Food Technology and Nutrition, University of Rzeszow, Ćwiklińskiej 1a St., 35-601 Rzeszów, Poland
| | - Mateusz Mołoń
- Institute of Biology, University of Rzeszów, 35-601 Rzeszów, Poland
| | - Monika Kula-Maximenko
- The Franciszek Górski Institute of Plant Physiology, Polish Academy of Sciences, 30-239 Krakow, Poland
| | - Ewelina Sidor
- Department of Chemistry and Food Toxicology, Institute of Food Technology and Nutrition, University of Rzeszow, Ćwiklińskiej 1a St., 35-601 Rzeszów, Poland
- Doctoral School, University of Rzeszów, Rejtana 16c, 35-959 Rzeszów, Poland
| | - Grzegorz Zaguła
- Department of Bioenergetics and Food Analysis, Institute of Food Technology and Nutrition, University of Rzeszow, Ćwiklińskiej 2D, 35-601 Rzeszów, Poland
| | - Małgorzata Dżugan
- Department of Chemistry and Food Toxicology, Institute of Food Technology and Nutrition, University of Rzeszow, Ćwiklińskiej 1a St., 35-601 Rzeszów, Poland
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Łyskowski A, Miłek M, Dżugan M. Assessing the Antimicrobial Properties of Honey Protein Components through In Silico Comparative Peptide Composition and Distribution Analysis. Antibiotics (Basel) 2023; 12:antibiotics12050830. [PMID: 37237732 DOI: 10.3390/antibiotics12050830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 04/25/2023] [Accepted: 04/25/2023] [Indexed: 05/28/2023] Open
Abstract
The availability of reference proteomes for two honeybee species (Apis mellifera and Apis cerana cerana) opens the possibility of in silico studies of diverse properties of the selected protein fractions. The antimicrobial activity of honey is well established and related to its composition, including protein components. We have performed a comparative study on a selected fraction of the honey-related proteins, as well as other bee-secreted proteins, utilizing a publicly available database of established and verified peptides with antimicrobial properties. Using a high-performance sequence aligner (diamond), protein components with antimicrobial peptide sequences were identified and analyzed. The identified peptides were mapped on the available bee proteome sequences, as well as on model structures provided by the AlphaFold project. The results indicate a highly conserved localization of the identified sequences within a limited number of the protein components. Putative antimicrobial fragments also show high sequence-based similarity to the multiple peptides contained in the reference databases. For the 2 databases used, the lowest calculated percentage of similarity ranged from 30.1% to 32.9%, with a respective average of 88.5% and 79.3% for the Apis mellifera proteome. It was revealed that the antimicrobial peptides (AMPs) site is a single, well-defined domain with potentially conserved structural features. In the case of the examples studied in detail, the structural domain takes the form of the two β-sheets, stabilized by α-helices in one case, and a six-β-sheet-only domain localized in the C-terminal part of the sequence, respectively. Moreover, no significant differences were found in the composition of the antibacterial fraction of peptides that were identified in the proteomes of both species.
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Affiliation(s)
- Andrzej Łyskowski
- Faculty of Chemistry, Rzeszów University of Technology, Powstańców Warszawy 6, 35-959 Rzeszów, Poland
| | - Michał Miłek
- Department of Chemistry and Food Toxicology, Institute of Food Technology and Nutrition, University of Rzeszów, Ćwiklińskiej 1a, 35-601 Rzeszów, Poland
| | - Małgorzata Dżugan
- Department of Chemistry and Food Toxicology, Institute of Food Technology and Nutrition, University of Rzeszów, Ćwiklińskiej 1a, 35-601 Rzeszów, Poland
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Tomczyk M, Czerniecka-Kubicka A, Miłek M, Sidor E, Dżugan M. Tracking of Thermal, Physicochemical, and Biological Parameters of a Long-Term Stored Honey Artificially Adulterated with Sugar Syrups. Molecules 2023; 28:molecules28041736. [PMID: 36838722 PMCID: PMC9966662 DOI: 10.3390/molecules28041736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 02/03/2023] [Accepted: 02/09/2023] [Indexed: 02/16/2023] Open
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 (p < 0.05). The admixture of syrup and invert (p < 0.05) reduced the viscosity of liquid phase of delaminated honey in a dose-dependent manner. In the study, artificially adulterated honeys were controlled using the standard differential scanning calorimetry, DSC. In all adulterated honeys, a specific glass transition, TG, was observed in the range of 34-38.05 °C, which was not observed for control honey and pure adulterants. Moreover, the additional Tgs were observed in a wide range from -19.5 °C to 4.10 °C for honeys adulterated by syrup only. In turn, the Tg in range of 50.4-57.6 °C was observed only for the honeys adulterated by invert. These specific Tg seem to be useful to detect honey adulteration and to identify the kind of adulterant used.
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Affiliation(s)
- Monika Tomczyk
- Department of Chemistry and Food Toxicology, Institute of Food Technology and Nutrition, University of Rzeszow, Ćwiklińskiej 1a St., 35-601 Rzeszow, Poland
- Correspondence: ; Tel.: +48-178721721
| | - Anna Czerniecka-Kubicka
- Department of Experimental and Clinical Pharmacology, Medical College of Rzeszow University, University of Rzeszow, 35-310 Rzeszow, Poland
| | - Michał Miłek
- Department of Chemistry and Food Toxicology, Institute of Food Technology and Nutrition, University of Rzeszow, Ćwiklińskiej 1a St., 35-601 Rzeszow, Poland
| | - Ewelina Sidor
- Department of Chemistry and Food Toxicology, Institute of Food Technology and Nutrition, University of Rzeszow, Ćwiklińskiej 1a St., 35-601 Rzeszow, Poland
- Doctoral School, University of Rzeszow, Poland, Rejtana 16c, 35-959 Rzeszow, Poland
| | - Małgorzata Dżugan
- Department of Chemistry and Food Toxicology, Institute of Food Technology and Nutrition, University of Rzeszow, Ćwiklińskiej 1a St., 35-601 Rzeszow, Poland
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Grabek-Lejko D, Miłek M, Sidor E, Puchalski C, Dżugan M. Antiviral and Antibacterial Effect of Honey Enriched with Rubus spp. as a Functional Food with Enhanced Antioxidant Properties. Molecules 2022; 27:4859. [PMID: 35956811 PMCID: PMC9370118 DOI: 10.3390/molecules27154859] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 07/26/2022] [Accepted: 07/27/2022] [Indexed: 11/17/2022] Open
Abstract
The aim of this study was to investigate the effect of blackberry and raspberry fruits (1 and 4%) and leaves (0.5 and 1%) on the biological activities of rape honey. Honey and plant material extracts were analyzed regarding total phenolic, flavonoid, anthocyanin contents, HPTLC and HPLC polyphenol profiles, as well as antioxidant activity. The antiviral potential was analyzed against bacteriophage phi 6-a coronavirus surrogate-whereas antimicrobial was tested against S. aureus and E. coli. Blackberry extracts were more abundant in antioxidants than raspberry extracts, with better properties found for leaves than fruits and for cultivated rather than commercial plants. The addition of both Rubus plant additives significantly increased the antioxidant potential of honey by four-fold (for 4% fruits additive) to five-fold (for 1% of leaves). Honey with the addition of fruits possessed higher antiviral potential compared with raw rape honey (the highest for 4% of raspberry fruit and 1% of blackberry leaf additive). Honey enriched with Rubus materials showed higher antibacterial potential against S. aureus than rape honey and effectively inhibited S. aureus biofilm formation. To summarize, honey enriched with Rubus fruit or leaves are characterized by increased pro-health value and can be recommended as a novel functional food.
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Affiliation(s)
- Dorota Grabek-Lejko
- Department of Bioenergetics, Food Analysis and Microbiology, Institute of Food Technology and Nutrition, University of Rzeszow, Zelwerowicza 4 St., 35-601 Rzeszow, Poland;
| | - Michał Miłek
- Department of Chemistry and Food Toxicology, Institute of Food Technology and Nutrition, University of Rzeszow, Ćwiklińskiej 1a St., 35-601 Rzeszow, Poland; (M.M.); (E.S.)
| | - Ewelina Sidor
- Department of Chemistry and Food Toxicology, Institute of Food Technology and Nutrition, University of Rzeszow, Ćwiklińskiej 1a St., 35-601 Rzeszow, Poland; (M.M.); (E.S.)
- Doctoral School, University of Rzeszow, Rejtana 16c, 35-959 Rzeszow, Poland
| | - Czesław Puchalski
- Department of Bioenergetics, Food Analysis and Microbiology, Institute of Food Technology and Nutrition, University of Rzeszow, Zelwerowicza 4 St., 35-601 Rzeszow, Poland;
| | - Małgorzata Dżugan
- Department of Chemistry and Food Toxicology, Institute of Food Technology and Nutrition, University of Rzeszow, Ćwiklińskiej 1a St., 35-601 Rzeszow, Poland; (M.M.); (E.S.)
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Tomczyk M, Bocian A, Sidor E, Miłek M, Zaguła G, Dżugan M. The Use of HPTLC and SDS-PAGE Methods for Coniferous Honeydew Honey Fingerprinting Compiled with Mineral Content and Antioxidant Activity. Molecules 2022; 27:molecules27030720. [PMID: 35163985 PMCID: PMC8838849 DOI: 10.3390/molecules27030720] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 01/18/2022] [Accepted: 01/19/2022] [Indexed: 11/23/2022] Open
Abstract
Fir honeydew honey is a uniquely beneficial product which is often subjected to adulteration; however, pollen analysis is not useful to verify this honey type. Fourteen samples of EU protected designation of origin fir honeydew honey gathered directly from apiaries were studied. Standards of legal requirements and additional parameters, i.e., specific optical rotation, mineral content, and antioxidant activity, were tested. Five nectar honeys of different varieties were used as a comparative material. HPTLC and SDS-PAGE methods were used to fingerprint the honey types. All honeys tested fulfilled the quality requirements in terms of water content, pH, total acidity, conductivity, HMF, and diastase number. They were defined as dark amber on the Pfund scale and exhibited positive specific rotation (+2.5 to 25). Honeydew honey surpassed the tested nectar honeys in terms of mineral content and antioxidant activity as well as total polyphenolic content, except for buckwheat honey. The sugar and polyphenolic profile obtained by HPTLC allowed to distinguish honeydew from nectar honeys. The same was achieved by SDS-PAGE protein profiling. Both techniques seem to be cheap and quick tools for precisely distinguishing honeydew honey.
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Affiliation(s)
- Monika Tomczyk
- Department of Chemistry and Food Toxicology, Institute of Food Technology and Nutrition, College of Natural Sciences, University of Rzeszow, 35–601 Rzeszow, Poland; (A.B.); (E.S.); (M.M.); (M.D.)
- Correspondence: ; Tel.: +48-17872-17-21
| | - Aleksandra Bocian
- Department of Chemistry and Food Toxicology, Institute of Food Technology and Nutrition, College of Natural Sciences, University of Rzeszow, 35–601 Rzeszow, Poland; (A.B.); (E.S.); (M.M.); (M.D.)
- Department of Biotechnology and Bioinformatics, Faculty of Chemistry, Rzeszow University of Technology, 35–959 Rzeszow, Poland
| | - Ewelina Sidor
- Department of Chemistry and Food Toxicology, Institute of Food Technology and Nutrition, College of Natural Sciences, University of Rzeszow, 35–601 Rzeszow, Poland; (A.B.); (E.S.); (M.M.); (M.D.)
- Doctoral School, University of Rzeszow, Poland, 35–959 Rzeszow, Poland
| | - Michał Miłek
- Department of Chemistry and Food Toxicology, Institute of Food Technology and Nutrition, College of Natural Sciences, University of Rzeszow, 35–601 Rzeszow, Poland; (A.B.); (E.S.); (M.M.); (M.D.)
| | - Grzegorz Zaguła
- Department of Bioenergetics, Food Analysis and Microbiology, Institute of Food Technology and Nutrition, College of Natural Sciences, University of Rzeszow, 35–601 Rzeszow, Poland;
| | - Małgorzata Dżugan
- Department of Chemistry and Food Toxicology, Institute of Food Technology and Nutrition, College of Natural Sciences, University of Rzeszow, 35–601 Rzeszow, Poland; (A.B.); (E.S.); (M.M.); (M.D.)
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Miłek M, Grabek-Lejko D, Stępień K, Sidor E, Mołoń M, Dżugan M. The enrichment of honey with Aronia melanocarpa fruits enhances its in vitro and in vivo antioxidant potential and intensifies its antibacterial and antiviral properties. Food Funct 2021; 12:8920-8931. [PMID: 34606549 DOI: 10.1039/d1fo02248b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The effect of adding the chokeberry fruit additive to rape honey was studied with regard to the physicochemical properties and biological activity. Two samples of dried powdered fruits were used to enrich the honey (1 and 4% v/v) during creaming. The obtained products were characterized in terms of sugar content, acidity, conductivity, total phenolic, flavonoid and anthocyanin contents and HPTLC polyphenol profiles. The antioxidant properties of enriched honeys were studied in vitro (FRAP, DPPH, and ABTS) and in vivo using a S. cerevisiae model. The inhibitory effect against 5 bacterial strains and coronavirus surrogate bacteriophage phi6 was tested. The addition of chokeberry significantly modified the physicochemical properties of honey and enhanced its antioxidant potential (from 3 to 15 times). Using HPTLC analysis, the occurrence of flavonoids, phenolic acids, and anthocyanins in chokeberry enriched honey was determined. The modified honey protected yeast cells against H2O2-induced oxidative stress when used as a pretreatment agent. All tested bacteria were susceptible to enriched honey in a dose-dependent manner. The antiviral potential of enriched honey against the model bacteriophage was discovered for the first time. In terms of numerous health benefits determined, honey enriched with Aronia melanocarpa fruits can be considered as an interesting novel functional food, which may increase the consumption of chokeberry superfruits.
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Affiliation(s)
- Michał Miłek
- Department of Chemistry and Food Toxicology, Institute of Food Technology and Nutrition, University of Rzeszow, Ćwiklińskiej 1a St., 35-601 Rzeszow, Poland.
| | - Dorota Grabek-Lejko
- Department of Bioenergetics, Food Analysis and Microbiology, Institute of Food Technology and Nutrition, University of Rzeszow, Zelwerowicza 4 St, 35-601 Rzeszow, Poland.
| | - Karolina Stępień
- Department of Biology, University of Rzeszow, Zelwerowicza 4 St., 35-601 Rzeszow, Poland.
| | - Ewelina Sidor
- Department of Chemistry and Food Toxicology, Institute of Food Technology and Nutrition, University of Rzeszow, Ćwiklińskiej 1a St., 35-601 Rzeszow, Poland.
| | - Mateusz Mołoń
- Department of Biology, University of Rzeszow, Zelwerowicza 4 St., 35-601 Rzeszow, Poland.
| | - Małgorzata Dżugan
- Department of Chemistry and Food Toxicology, Institute of Food Technology and Nutrition, University of Rzeszow, Ćwiklińskiej 1a St., 35-601 Rzeszow, Poland.
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Sidor E, Miłek M, Zaguła G, Bocian A, Dżugan M. Searching for Differences in Chemical Composition and Biological Activity of Crude Drone Brood and Royal Jelly Useful for Their Authentication. Foods 2021; 10:foods10092233. [PMID: 34574343 PMCID: PMC8466182 DOI: 10.3390/foods10092233] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 09/15/2021] [Accepted: 09/18/2021] [Indexed: 11/21/2022] Open
Abstract
Drone brood is a little-known bee product which is frequently considered as a male equivalent of royal jelly and is sometimes used as its adulterant. The aim of the study was to compare the chemical composition and biological activity of both bee products originated from the same apiaries (n = 3) limiting the influence of genetic and environmental factors. Moreover, for drone brood study covered testing three stages of larval development (days 7, 11, and 14). The comparison included mineral composition (ICP-OES method), protein content and protein profile (SDS-PAGE), testosterone and estradiol content (ELISA tests). HPTLC method was used to analyze of sugar, amino acids, and polyphenolic profile of drone brood and royal jelly. Moreover, their antioxidant and enzymatic properties were compared. A lot of similarities between drone brood and royal jelly were found in terms of chemical components. However, drone brood was more abundant in iron and manganese, reducing sugars and some amino acids, especially proline, tyrosine, and leucine. It contained more testosterone (especially on the 14th day) and estradiol (on the 7th day). The greatest differences in the enzymatic activities and polyphenolic profile were found. Diastase and α-glucosidase activity were found as specific enzymes of the drone brood. Similarly, ferulic and ellagic acids were characteristic for brood and were not present in royal jelly. The study showed a lot of similar features for both tested bee products, however, some specific markers which can serve to differentiate drone brood and royal jelly were found.
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Affiliation(s)
- Ewelina Sidor
- Department of Chemistry and Food Toxicology, Institute of Food Technology and Nutrition, University of Rzeszów, Ćwiklińskiej 1a St., 35-601 Rzeszów, Poland; (E.S.); (M.M.)
| | - Michał Miłek
- Department of Chemistry and Food Toxicology, Institute of Food Technology and Nutrition, University of Rzeszów, Ćwiklińskiej 1a St., 35-601 Rzeszów, Poland; (E.S.); (M.M.)
| | - Grzegorz Zaguła
- Department of Bioenergetics, Food Analysis and Microbiology, Institute of Food Technology and Nutrition, College of Natural Science, Rzeszów University, Ćwiklińskiej 2D St., 35-601 Rzeszów, Poland;
| | - Aleksandra Bocian
- Department of Biotechnology and Bioinformatics, Rzeszów University of Technology, Powstańców Warszawy 6 St., 35-959 Rzeszów, Poland;
| | - Małgorzata Dżugan
- Department of Chemistry and Food Toxicology, Institute of Food Technology and Nutrition, University of Rzeszów, Ćwiklińskiej 1a St., 35-601 Rzeszów, Poland; (E.S.); (M.M.)
- Correspondence:
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Miłek M, Młodecki Ł, Dżugan M. Caffeine content and antioxidant activity of various brews of specialty grade coffee [pdf]. Acta Sci Pol Technol Aliment 2021. [DOI: 10.17306/j.afs.2021.0890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Miłek M, Bocian A, Kleczyńska E, Sowa P, Dżugan M. The Comparison of Physicochemical Parameters, Antioxidant Activity and Proteins for the Raw Local Polish Honeys and Imported Honey Blends. Molecules 2021; 26:molecules26092423. [PMID: 33919361 PMCID: PMC8122680 DOI: 10.3390/molecules26092423] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 04/15/2021] [Accepted: 04/21/2021] [Indexed: 11/16/2022] Open
Abstract
Many imported honeys distributed on the Polish market compete with local products mainly by lower price, which can correspond to lower quality and widespread adulteration. The aim of the study was to compare honey samples (11 imported honey blends and 5 local honeys) based on their antioxidant activity (measured by DPPH, FRAP, and total phenolic content), protein profile obtained by native PAGE, soluble protein content, diastase, and acid phosphatase activities identified by zymography. These indicators were correlated with standard quality parameters (water, HMF, pH, free acidity, and electrical conductivity). It was found that raw local Polish honeys show higher antioxidant and enzymatic activity, as well as being more abundant in soluble protein. With the use of principal component analysis (PCA) and stepwise linear discriminant analysis (LDA) protein content and diastase number were found to be significant (p < 0.05) among all tested parameters to differentiate imported honey from raw local honeys.
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Affiliation(s)
- Michał Miłek
- Department of Chemistry and Food Toxicology, Institute of Food Technology and Nutrition, University of Rzeszów, Ćwiklińskiej 1a, 35-601 Rzeszów, Poland; (E.K.); (M.D.)
- Correspondence: ; Tel.: +48-17-872-1730
| | - Aleksandra Bocian
- Department of Biotechnology and Bioinformatics, Faculty of Chemistry, Rzeszów University of Technology, Powstańców Warszawy 6, 35-959 Rzeszów, Poland;
| | - Ewelina Kleczyńska
- Department of Chemistry and Food Toxicology, Institute of Food Technology and Nutrition, University of Rzeszów, Ćwiklińskiej 1a, 35-601 Rzeszów, Poland; (E.K.); (M.D.)
| | - Patrycja Sowa
- Department of Bioenergetics Food Analysis and Microbiology, Institute of Food Technology and Nutrition, University of Rzeszów, Ćwiklinskiej 2D, 35-601 Rzeszów, Poland;
| | - Małgorzata Dżugan
- Department of Chemistry and Food Toxicology, Institute of Food Technology and Nutrition, University of Rzeszów, Ćwiklińskiej 1a, 35-601 Rzeszów, Poland; (E.K.); (M.D.)
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Abstract
BACKGROUND The aim of the study was to evaluate the caffeine level and antioxidant activity of brews of specialty grade coffee compared to popular coffee brands. METHODS Ten types of coffee were used, including 7 specialty Arabica, 1 Robusta and 2 popular cheap coffee brands. For caffeine determination, HPLC analysis and the spectrophotometric method were used as reference. The total polyphenol content and antioxidant capacity (DPPH and FRAP methods) were evaluated. For two selected high-quality coffees, the influence of the brewing method on the antioxidant activity and caffeine content in the brews was assayed. RESULTS Regarding the caffeine content, differences between specialty coffee brews and popular products were not found, and an average level amounted to 56 and 40 mg/ml, respectively. In contrast, the antioxidant capacity of specialty coffee brews was significantly higher than for popular ones, independently of the test used. The highest scavenging ability and total phenolic content was found for S3 specialty coffee (46.15% of DPPH inhibition and 58.7 mg GAE/ml, respectively), whereas the lowest was found for popular coffee (about 35% of DPPH inhibition and about 41 mg/GAE/ml). For two selected high-quality coffees, the influence of the brewing method on the antioxidant activity and caffeine content in the brews was tested. It was found that the use of a dripper (overflow brewing method) provides the brew with the best antioxidant properties but with moderate caffeine levels. CONCLUSIONS It was found that 'specialty' quality coffees do not differ from popular brands in terms of caffeine content, but significantly outweigh them in terms of antioxidant activity. This property can be beneficial in the case of a high consumption of coffee, due to antiradical protective effects without the risk of caffeine overdose.
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Affiliation(s)
- Michał Miłek
- Department of Chemistry and Food Toxicology, Institute of Food Technology and Nutrition, University of Rzeszów, Poland
| | - Łukasz Młodecki
- Department of Chemistry and Food Toxicology, Institute of Food Technology and Nutrition, University of Rzeszów, Poland
| | - Małgorzata Dżugan
- Department of Chemistry and Food Toxicology, Institute of Food Technology and Nutrition, University of Rzeszów, Poland
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Sidor E, Dżugan M. Drone Brood Homogenate as Natural Remedy for Treating Health Care Problem: A Scientific and Practical Approach. Molecules 2020; 25:molecules25235699. [PMID: 33287191 PMCID: PMC7730673 DOI: 10.3390/molecules25235699] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 11/30/2020] [Accepted: 12/01/2020] [Indexed: 11/16/2022] Open
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 Varroa. Meanwhile, in many scientific reports a curative effect of bee drone homogenate in treating urgent global health problems have been confirmed, including ovarian dysfunction in women and male infertility, thyroid and immunity disorders, as well as malnutrition in children. A few dietary supplements based on drone brood are available online. Many patents relating to drone brood-based dietary supplements have been filed in Russia, but their prevalence in EU countries is still limited. Further research is needed to fully recognize the pharmacological activity and increase the use of drone brood.
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Sowa P, Marcinčáková D, Miłek M, Sidor E, Legáth J, Dżugan M. Analysis of Cytotoxicity of Selected Asteraceae Plant Extracts in Real Time, Their Antioxidant Properties and Polyphenolic Profile. Molecules 2020; 25:molecules25235517. [PMID: 33255596 PMCID: PMC7728153 DOI: 10.3390/molecules25235517] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 11/19/2020] [Accepted: 11/23/2020] [Indexed: 01/20/2023] Open
Abstract
Plants from Asteraceae family are widely used for their therapeutic effects in the treatment of gastrointestinal diseases, but the consequences of excessive intake still need to be studied. The aims of this study were the evaluation of cytotoxicity, measurement of antioxidant properties and determination of polyphenolic profile of Tanacetum vulgare L. (tansy), Achillea millefolium L. (yarrow) and Solidago gigantea Ait. (goldenrod) ethanolic extracts. The cytotoxicity of extracts was monitored by xCELLigence system in real time by using porcine intestinal epithelial cell line (IPEC-1) and by measurement of changes in metabolic activity ((3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium) (MTS) assay). The antioxidant properties were measured by spectrophotometric methods and polyphenolic profiles were determined by HPLC-DAD for 50% ethanol extracts (10% w/v). Strong cytotoxic effect was recorded for tansy and yarrow extracts (125-1000 µg/mL) by xCELLigence system and MTS assay. Conversely, a supportive effect on cell proliferation was recorded for goldenrod extracts (125 µg/mL) by the same methods (p < 0.001). The antioxidant activity was in good correlation with total polyphenolic content, and the highest value was recorded for goldenrod leaves, followed by tansy leaves, goldenrod flowers and yarrow leaf extracts. The goldenrod extracts were abundant with flavonoids, whereas phenolic acid derivatives predominated in the polyphenolic profile of tansy and yarrow.
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Affiliation(s)
- Patrycja Sowa
- Department of Bioenergetics, Food Analysis and Microbiology, Institute of Food Technology and Nutrition, University of Rzeszów, Zelwerowicza 4, 35-601 Rzeszów, Poland
- Department of Chemistry and Food Toxicology, Institute of Food Technology and Nutrition, University of Rzeszów, Ćwiklińskiej 1a, 35-601 Rzeszów, Poland; (M.M.); (E.S.); (M.D.)
- Correspondence: ; Tel.: +48-17-785-4820
| | - Dana Marcinčáková
- Department of Pharmacology and Toxicology, University of Veterinary Medicine and Pharmacy in Košice, Komenského 73, 041 81 Košice, Slovakia; (D.M.); (J.L.)
| | - Michał Miłek
- Department of Chemistry and Food Toxicology, Institute of Food Technology and Nutrition, University of Rzeszów, Ćwiklińskiej 1a, 35-601 Rzeszów, Poland; (M.M.); (E.S.); (M.D.)
| | - Ewelina Sidor
- Department of Chemistry and Food Toxicology, Institute of Food Technology and Nutrition, University of Rzeszów, Ćwiklińskiej 1a, 35-601 Rzeszów, Poland; (M.M.); (E.S.); (M.D.)
| | - Jaroslav Legáth
- Department of Pharmacology and Toxicology, University of Veterinary Medicine and Pharmacy in Košice, Komenského 73, 041 81 Košice, Slovakia; (D.M.); (J.L.)
- Department of Biotechnology and Bioinformatics, Faculty of Chemistry, Rzeszów University of Technology, Powstańców Warszawy 6, 35-959 Rzeszów, Poland
| | - Małgorzata Dżugan
- Department of Chemistry and Food Toxicology, Institute of Food Technology and Nutrition, University of Rzeszów, Ćwiklińskiej 1a, 35-601 Rzeszów, Poland; (M.M.); (E.S.); (M.D.)
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Tomczyk M, Zaguła G, Dżugan M. A simple method of enrichment of honey powder with phytochemicals and its potential application in isotonic drink industry. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2020.109204] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Dżugan M, Grabek-Lejko D, Swacha S, Tomczyk M, Bednarska S, Kapusta I. Physicochemical quality parameters, antibacterial properties and cellular antioxidant activity of Polish buckwheat honey. FOOD BIOSCI 2020. [DOI: 10.1016/j.fbio.2020.100538] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Dżugan M, Trybus W, Lis M, Wesołowska M, Trybus E, Kopacz-Bednarska A, Król T. Cadmium-induced ultrastructural changes in primary target organs of developing chicken embryos (Gallus domesticus). J Trace Elem Med Biol 2018; 50:167-174. [PMID: 30262276 DOI: 10.1016/j.jtemb.2018.06.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 05/08/2018] [Accepted: 06/18/2018] [Indexed: 11/18/2022]
Abstract
The aim of this study was to evaluate ultrastructural changes in kidney and liver tissue of chicken embryos exposed in ovo to cadmium. Embryonated eggs were injected on the 4th day of incubation with cadmium at the dose of 0, 2, 4 and 8 μg/egg (80 eggs/group). The samples of kidney and liver tissues were collected from embryos at the 14th and 18th day of incubation (E14 and E18) and at hatching day (D1). The tissue structure was evaluated by transmission electron microscopy (Tecnai G2 Spirit). The results indicate that hepatocytes responded to damage caused by toxic cadmium activity with a significant disturbance in the structure of mitochondria and a considerable expansion of the lysososmal system, while glomerular cells additionally reacted with an increased proliferation of peroxisomes. The range of changes observed on the subcellular level was dependent on the dose of cadmium, embryogenesis stage and cell type.
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Affiliation(s)
- Małgorzata Dżugan
- Department of Chemistry and Food Toxicology, Faculty of Biology and Agriculture, University of Rzeszów, ul. Ćwiklińskiej 1, 35-601 Rzeszów, Poland.
| | - Wojciech Trybus
- Department of Cell Biology and Electronic Microscopy, Institute of Biology, The Jan Kochanowski University, ul. Świętokrzyska 15, 25-406 Kielce, Poland
| | - Marcin Lis
- Department of Veterinary and Animal Reproduction and Welfare, University of Agriculture, Aleja Mickiewicza 24/28, 30-059 Krakow, Poland
| | - Monika Wesołowska
- Department of Chemistry and Food Toxicology, Faculty of Biology and Agriculture, University of Rzeszów, ul. Ćwiklińskiej 1, 35-601 Rzeszów, Poland
| | - Ewa Trybus
- Department of Cell Biology and Electronic Microscopy, Institute of Biology, The Jan Kochanowski University, ul. Świętokrzyska 15, 25-406 Kielce, Poland
| | - Anna Kopacz-Bednarska
- Department of Cell Biology and Electronic Microscopy, Institute of Biology, The Jan Kochanowski University, ul. Świętokrzyska 15, 25-406 Kielce, Poland
| | - Teodora Król
- Department of Cell Biology and Electronic Microscopy, Institute of Biology, The Jan Kochanowski University, ul. Świętokrzyska 15, 25-406 Kielce, Poland
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Dżugan M, Wesołowska M, Zaguła G, Puchalski C. The comparison of the physicochemical parameters and antioxidant activity of homemade and commercial pomegranate juices. Acta Sci Pol Technol Aliment 2018. [PMID: 29514425 DOI: 10.17306/j.afs.0529] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
BACKGROUND The pomegranate (Punica granatum L.) has gained a reputation as a fruit with many health- promoting properties. It is considered to help prevent or treat various disease risk factors including high blood pressure, high cholesterol, oxidative stress, hyperglycemia and inflammatory activities. It has been demonstrated that certain components of pomegranates, such as polyphenols, have potential antioxidant, anti-inflammatory and anticarcinogenic effects. METHODS Five commercially available (CA) and three homemade (HM) pomegranate (Puni- ca granatum L.) juices were evaluated for their physicochemical properties including titratable acidity (TA), pH and total soluble solids (TSS), as well as antioxidant properties such as anthocyanin content, ascorbic acid content (AA), antioxidant activity (DPPH), total phenolic compounds (TPC) and ferric reducing antioxidant power (FRAP). Moreover, the concentrations of 18 different elements (Ca, K, Mg, P, S, Na, Cr, Cu, Fe, Mn, Mo, Sr, Zn, Al, Cd, Ni, Pb, Hg) were determined using the ICP-OES method, with prior wet mineralization. RESULTS TA was significantly lower (P < 0.05) in homemade than in commercial juices (0.380 and 1.318% citric acid respectively). The TPC and FRAP parameters were about 50% higher in commercial than in homemade juices. Polyphenols were strongly correlated with antioxidant activity measured by FRAP and DPPH tests (r = 0.958 and 0.886 respectively), and a significant correlation for anthocyanins and vitamin C (r = 0.849) was observed. The most common mineral in each tested juice was potassium (132.69–3151.87 mg/dm3) and a high level of magnesium (23.42–123.63 mg/dm3) was found. CONCLUSIONS Obtaining juices from whole fruits (peel and arils), as in commercial production, enhanced the content of polyphenol compounds and the antioxidant activity of the juice. However, a better mineral compo- sition was observed in homemade juices.
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Affiliation(s)
- Małgorzata Dżugan
- Department of Chemistry and Food Toxicology, University of Rzeszów, Poland
| | - Monika Wesołowska
- Department of Chemistry and Food Toxicology, University of Rzeszów, Poland
| | - Grzegorz Zaguła
- Department of Bioenergetics and Food Analysis, University of Rzeszów, Poland
| | - Czesław Puchalski
- Department of Bioenergetics and Food Analysis, University of Rzeszów, Poland
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Abstract
Honey variety is commonly defined by beekeepers based on nectar flow availability and the only laboratory method to provide verification is the melissopalynological analysis. Therefore, a quick and simple method for accurate assessment of honey variety is still being researched. The aim of the study was to evaluate the antioxidant activity of honey as an indicator of variety through the use of multivariate statistical analysis. Materials for the study consisted of 90 samples of varietal Polish honeys (rape-12, tilia-10, goldenrod-11, dandelion-5, buckwheat-6, multifloral-17, nectar-honeydew-8 and coniferous honeydew-16 and leafy honeydew-5) obtained directly from apiaries. Honeys were investigated in aspect of antioxidant capacity by photochemiluminescence (PCL) methods using standard ACW and ACL kits. As the reference FRAP and DPPH methods were used. The total phenolics content (TPC) was determined through the Folin-Ciocalteu method. The strongest antioxidant activity was found for buckwheat, while the weakest was found for rape honeys regardless of the used method. Results of the used methods were positively correlated (r = 0.42 to 0.94). Analysis conducted by PCL method confirmed that the minor fraction of honey antioxidants exhibits hydrophobic properties. Clear separation of honey varieties using PCA and Clustering method indicate that antioxidant activity can be a useful parameter for determining the botanical origin of honey.
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Affiliation(s)
- Małgorzata Dżugan
- Department of Chemistry and Food Toxicology, Faculty of Biology and Agriculture, University of Rzeszow, Ćwiklińskiej 1a St., 35601 Rzeszów, Poland.
| | - Monika Tomczyk
- Department of Chemistry and Food Toxicology, Faculty of Biology and Agriculture, University of Rzeszow, Ćwiklińskiej 1a St., 35601 Rzeszów, Poland.
| | - Patrycja Sowa
- Department of Chemistry and Food Toxicology, Faculty of Biology and Agriculture, University of Rzeszow, Ćwiklińskiej 1a St., 35601 Rzeszów, Poland.
| | - Dorota Grabek-Lejko
- Department of Biotechnology and Microbiology, Faculty of Biology and Agriculture, University of Rzeszów, Zelwerowicza 4, 35-601 Rzeszów, Poland.
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Rawski RI, Sanecki PT, Dżugan M, Kijowska K. The evidence of proteases in sprouted seeds and their application for animal protein digestion. Chem Zvesti 2018; 72:1213-1221. [PMID: 29681684 PMCID: PMC5908832 DOI: 10.1007/s11696-017-0341-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Accepted: 11/09/2017] [Indexed: 11/21/2022]
Abstract
It has been experimentally proven that germinated plant seeds, such as leek, red clover, broccoli, and others contain proteases, which are able to digest animal protein such as gelatin, bovine albumin, casein, and egg albumin. Preliminary tests were carried out with the use of a semi-qualitative gelatin test, which is often applied to prove the presence of fruit enzymes. Quantitative examinations were carried out with the use of a ninhydrin reaction for amino acid determination as well as the Bradford and Smith methods for protein determination. Respective calibration curves were obtained for glycine (amino acid analysis) as well as for egg albumin, bovine albumin, and gelatin (protein analysis), with a full statistical evaluation including Mandel and Lack-of-Fit tests to check for linearity. It has been proven that the selected germinated seeds containing proteases can be applied as an effective aid for animal protein digestion.
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Affiliation(s)
- Rafał I Rawski
- 1Faculty of Biology and Agriculture, University of Rzeszow, 35-601, Rzeszow, Poland
| | - Przemysław T Sanecki
- 2Faculty of Chemistry, Rzeszow University of Technology, 35-959, Rzeszow, Poland
| | - Małgorzata Dżugan
- 1Faculty of Biology and Agriculture, University of Rzeszow, 35-601, Rzeszow, Poland
| | - Klaudia Kijowska
- 2Faculty of Chemistry, Rzeszow University of Technology, 35-959, Rzeszow, Poland
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20
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Dżugan M, Wesołowska M, Zaguła G, Puchalski C. The comparison of the physicochemical parameters and antioxidant activity of homemade and commercial pomegranate juices [pdf]. Acta Sci Pol Technol Aliment 2018. [DOI: 10.17306/j.afs.2018.0529] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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21
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Dżugan M, Wesołowska M, Zaguła G, Kaczmarski M, Czernicka M, Puchalski C. Honeybees (Apis mellifera) as a biological barrier for contamination of honey by environmental toxic metals. Environ Monit Assess 2018; 190:101. [PMID: 29374848 DOI: 10.1007/s10661-018-6474-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Accepted: 01/15/2018] [Indexed: 06/07/2023]
Abstract
The aim of the study was to investigate the transfer of toxic metals from honeybee workers (Apis mellifera L.) to bee honey in relation to the ecological state of the environment. The materials of the study consisted of samples of honeybee bodies and varietal honeys taken from the same apiary located in three areas: R1-urbanized (16), R2-ecologically clean (16) and R3-industrialized (15) of south-eastern Poland. The contents of 14 elements in all tested samples, including toxic metals (Cd, Pb, Hg, Al, Ni, Tl) as well as bioelements (K, Mg, Ca, Mn, Fe, Zn, Cu, Se), were analysed by the ICP-OES method with prior microwave mineralization. The concentrations of the majority of the studied elements, excluding aluminum and lead, were significantly higher in bee bodies than in honey samples (P < 0.05). The pollution of bee bodies by toxic metals was dependent on the environmental cleanliness, and the most pollution was observed in the industrialized area. The bee body was the most effective barrier for Cd and Tl transfer to the honey, while the level of Ni was similar in both tested materials. The Al concentration was significantly higher in honey than bee bodies (14.81 ± 24.69 and 6.51 ± 5.83 mg kg-1, respectively), which suggests the possibility of secondary contamination of honey. The greatest sensitivity to heavy metal pollution was observed in honeydew honey compared to nectar honeys (P < 0.05). It was proved for the first time that bees work as biofilters for toxic metals and prevent honey contamination.
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Affiliation(s)
- Małgorzata Dżugan
- Department of Chemistry and Food Toxicology, University of Rzeszow, Ćwiklińskiej 1a St., 35-601, Rzeszów, Poland.
| | - Monika Wesołowska
- Department of Chemistry and Food Toxicology, University of Rzeszow, Ćwiklińskiej 1a St., 35-601, Rzeszów, Poland
- Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 949 76, Nitra, Slovakia
| | - Grzegorz Zaguła
- Department of Bioenergy Technology and Food Analysis, University of Rzeszów, Zelwerowicza 4 St., 35-601, Rzeszów, Poland
| | - Mateusz Kaczmarski
- Department of Agriculture, The Jan Grodek State Vocational Academy in Sanok, Mickiewicza 21 St., 38-500, Sanok, Poland
| | - Maria Czernicka
- Department of Bioenergy Technology and Food Analysis, University of Rzeszów, Zelwerowicza 4 St., 35-601, Rzeszów, Poland
| | - Czesław Puchalski
- Department of Bioenergy Technology and Food Analysis, University of Rzeszów, Zelwerowicza 4 St., 35-601, Rzeszów, Poland
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Sowa P, Grabek-Lejko D, Wesołowska M, Swacha S, Dżugan M. Hydrogen peroxide-dependent antibacterial action of Melilotus albus honey. Lett Appl Microbiol 2017; 65:82-89. [PMID: 28426165 DOI: 10.1111/lam.12749] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Revised: 04/12/2017] [Accepted: 04/12/2017] [Indexed: 01/18/2023]
Abstract
Honey originating from different floral sources exhibits the broad spectrum of antibacterial activity as a result of the presence of hydrogen peroxide as well as nonperoxide bioactive compounds. The mechanisms of antibacterial activity of Polish melilot honey were investigated for the first time. Polish melilot honey samples (Melilotus albus biennial = 3 and annual = 5, Melilotus officinalis = 1) were collected directly from beekeepers and analysed for pollen profile, basic physicochemical parameters, antioxidant capacity, radical scavenging activity, total phenolic contents as well as antibacterial properties against pathogenic bacteria Staphylococcus aureus, Escherichia coli, Klebsiella pneumoniae, Salmonella spp. The physicochemical properties of melilot honey were specific for light-coloured unifloral honey samples and were not dependent on its botanical and geographical origin (P > 0·05). All tested honey samples exhibited inhibitory activity (above 90%) against Gram-positive bacteria at the concentration of 12·5-25%. Above 30-50% of antibacterial activity of melilot honey was connected with glucose oxidase enzyme action and was destroyed in the presence of catalase. Hydrogen peroxide-dependent antibacterial activity of honey was inversely correlated with its radical scavenging activity (r = -0·67) and phenolic compounds (r = -0·61). Antibacterial action of melilot honey depends not only on hydrogen peroxide produced by glucose oxidase, but also on other nonperoxide bioactive components of honey. SIGNIFICANCE AND IMPACT OF THE STUDY Melilot honey is used in traditional medicine as an anticoagulant agent due to the possibility of the presence of the coumarin compounds which are specific for Melilotus plant. Melilotus albus is rarely used to produce honey, and antibacterial properties of this variety of honey had not been studied yet. Nine samples of melilot honey produced in different regions of Poland were analysed according to their antibacterial activity which was correlated with physiochemical parameters and antioxidant activity. It was shown that antibacterial activity of melilot honey is created by hydrogen peroxide and other bioactive compounds.
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Affiliation(s)
- P Sowa
- Department of Chemistry and Food Toxicology, Faculty of Biology and Agriculture, University of Rzeszów, Rzeszów, Poland
| | - D Grabek-Lejko
- Department of Biotechnology and Microbiology, Faculty of Biology and Agriculture, University of Rzeszów, Rzeszów, Poland
| | - M Wesołowska
- Department of Chemistry and Food Toxicology, Faculty of Biology and Agriculture, University of Rzeszów, Rzeszów, Poland
| | - S Swacha
- Department of Chemistry and Food Toxicology, Faculty of Biology and Agriculture, University of Rzeszów, Rzeszów, Poland
| | - M Dżugan
- Department of Chemistry and Food Toxicology, Faculty of Biology and Agriculture, University of Rzeszów, Rzeszów, Poland
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Dżugan M, Sowa P, Kwaśniewska M, Wesołowska M, Czernicka M. Physicochemical Parameters and Antioxidant Activity of Bee Honey Enriched With Herbs. Plant Foods Hum Nutr 2017; 72:74-81. [PMID: 28000091 DOI: 10.1007/s11130-016-0593-y] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Three groups of products enriched with herbs were studied: (1) commercial herb honeys (n = 5) produced by bees fed a syrup with an herbal extract, (2) natural herbal honey (n = 3) produced by bees from the nectar of herbs, and (3) creamed multifloral honey with added dried herbs (n = 5). As a control, multifloral honey (n = 5) was used. The physicochemical parameters (i.e., sugar extract, water content, specific rotation, conductivity, hydroxymethylfurfural content, pH and acidity), sugar profiles (HPLC analysis), antioxidant activity and total phenolic compounds content of the studied samples were compared. Although great diversity in the basic properties of the studied products was observed, they were comparable to multifloral honey and complied with honey regulations. Significant differences in sugar composition were observed, and adversely positive rotation (excluding nettle herb honey) was detected in group 1, likely resulting from the change in bee feeding. The best antioxidant activity for creamed honeys with dried herbs (group 2) was investigated, whereas herb honeys (group 1) exhibited similar antioxidant properties as multifloral honey. The use of controlled feeding of bees appears to be an effective method of enriching honey with desirable plant bioactive components to create innovative bee products.
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Affiliation(s)
- Małgorzata Dżugan
- Department of Chemistry and Food Toxicology, Faculty of Biology and Agriculture, University of Rzeszów, Ćwiklińskiej 1a, 35-601, Rzeszów, Poland.
| | - Patrycja Sowa
- Department of Chemistry and Food Toxicology, Faculty of Biology and Agriculture, University of Rzeszów, Ćwiklińskiej 1a, 35-601, Rzeszów, Poland
| | - Monika Kwaśniewska
- Department of Chemistry and Food Toxicology, Faculty of Biology and Agriculture, University of Rzeszów, Ćwiklińskiej 1a, 35-601, Rzeszów, Poland
| | - Monika Wesołowska
- Department of Chemistry and Food Toxicology, Faculty of Biology and Agriculture, University of Rzeszów, Ćwiklińskiej 1a, 35-601, Rzeszów, Poland
| | - Maria Czernicka
- Department of Bioenergy Technology, Faculty of Biology and Agriculture, University of Rzeszów, Ćwiklińskiej 1a, 35-601, Rzeszów, Poland
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Dżugan M, Lis M. Cadmium-induced changes in hatchability and in the activity of aminotransaminases and selected lysosomal hydrolases in the blood plasma of Muscovy ducklings (Cairina moschata). Acta Vet Hung 2016; 64:239-49. [PMID: 27342095 DOI: 10.1556/004.2016.024] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The aim of this study was to determine the effect of cadmium on Muscovy ducklings (Cairina moschata) based on hatching results and the activity of enzymes in the blood plasma. On day 6 of incubation, hatching eggs were injected into the egg albumen with 50 μl of saline solution containing Cd ions (CdCl2) at concentrations of 0 (control group), 1.3, 4.0, 7.5, 15.0 and 30 μg/egg, using 50 eggs per group. A gradual decrease in hatchability, from 52% in the control to 4% in the highest Cd dose group, was observed, with the LD50 calculated as 8 μg/egg. However, the impact of cadmium on the incidence of malformations of duck embryos has not been proven. Compared to the control group, N-acetyl-β-Dglucosaminidase activity increased by 30-50% (P ≤ 0.05) in the blood serum of ducklings in the groups receiving more than 7.5 μg Cd/egg, whereas an elevated activity of arylsulphatase (by 45%) was observed for a lower dose only (4 μg Cd/egg). A gradual increase in the activity of alanine and aspartate aminotransferases was observed (P ≤ 0.05), starting from the lowest exposure of 1.3 μg Cd/egg, by 155% and 53%, respectively. In conclusion, the results prove the dosedependent toxic impact of cadmium on embryogenesis and on the studied blood plasma enzyme activities of ducklings.
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Affiliation(s)
- Małgorzata Dżugan
- 1Department of Chemistry and Food Toxicology, University of Rzeszów, Ćwiklińskiej 2, 35-601 Rzeszów, Poland
| | - Marcin Lis
- 2Department of Veterinary and Animal Reproduction and Welfare, University of Agriculture in Krakow, Kraków,, Poland
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Dżugan M, Lis MW, Droba M, Niedziółka JW. Protective effect of zinc on cadmium embryotoxicity and antioxidant status of blood plasma in newly hatched chicks. J Environ Sci Health A Tox Hazard Subst Environ Eng 2012; 47:1288-1293. [PMID: 22540653 DOI: 10.1080/10934529.2012.672133] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Among the multiple mechanisms of cadmium toxicity proposed, the most common is the disruption of the cellular antioxidant system, which may be limited by pre- or co-treatment with zinc. The aim of this study was to determine if simultaneous zinc supplementation of hen's egg could reduce embryotoxic effect of cadmium. Egg albumen was injected on day 4 of incubation with cadmium alone (50 nmol per egg) or in combination with zinc (100 and 500 nmol). Hatching results and antioxidant activity in plasma of newly hatched chicks were determined by photochemiluminescence (PCL) and FRAP methods. Administration of cadmium markedly reduced hatchabilty (30.2 %), while both zinc doses used were embryotoxic (43.2 and 48.9 %) as compared to the control group (61.9 %). This adverse effect was reduced by simultaneous zinc administration (completely at 10-fold higher molar concentration). This observation was confirmed by examination of the antioxidant capacity in plasma of Cd-treated chicks. A slight decrease in the hydrophilic and lipophilic antioxidant capacity induced by cadmium was compensated by a co-treatment with higher zinc dose administration, whereas the exposure of hen embryos to zinc caused an increase in antioxidant potential in the plasma of chicks. It is concluded that Zn supply in conditions of exposure to Cd can protect against Cd-induced oxidative stress in chicken embryos.
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Affiliation(s)
- Małgorzata Dżugan
- Department of Food Chemistry and Toxicology, University of Rzeszow, Poland.
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Dżugan M, Lis M, Droba M, Niedziółka J. Effect of cadmium injected in ovo on hatching results and the activity of plasma hydrolytic enzymes in newly hatched chicks. Acta Vet Hung 2011; 59:337-47. [PMID: 21727066 DOI: 10.1556/avet.2011.020] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The aim of the study was to determine the toxicity of cadmium ions in chick embryos, using plasma hydrolytic enzyme as its biomarker. Hatching eggs (n = 300) from Ross 308 broilers were incubated under standard conditions. On day 4 of incubation, 50 μl of saline solution, containing Cd ions at a concentration from 0 (control group) to 24 μg, was injected in ovo into the egg albumen. The results indicate that the administration of cadmium at doses exceeding 1 μg/egg caused a gradual decrease in hatchability, with an LD50 of 3.9 μg/egg. The greatest differences between the groups in the enzymatic activities studied were found for N-acetyl-β-D-glucosaminidase (NAG), β-D-mannosidase (β-MAN) and arylsulphatase (ARYL). Compared to the control group, in the blood serum of chicks from the groups receiving 3, 6 and 12 μg Cd/egg the NAG activity increased by 79, 108 and 54% and β-MAN activity by 33, 119 and 108%, respectively. Exposure to cadmium at a dose of 1 to 6 μg per egg caused an about 60% increase in ARYL activity while a dose of 12 μg decreased the activity by about 35% below the level observed in the control group. These findings show that cadmium has a similar toxicity mechanism in mammals and birds, which opens the possibility of using NAG activity as a biomarker of the cytotoxic effect of cadmium in birds.
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Affiliation(s)
- Małgorzata Dżugan
- 1 University of Rzeszów Department of Food Chemistry and Toxicology Ćwiklińskiej 2 35-601 Rzeszów Poland
| | - Marcin Lis
- 2 University of Agriculture in Cracow Department of Poultry and Fur Animal Breeding and Animal Hygiene Cracow Poland
| | - Maria Droba
- 1 University of Rzeszów Department of Food Chemistry and Toxicology Ćwiklińskiej 2 35-601 Rzeszów Poland
| | - Jerzy Niedziółka
- 2 University of Agriculture in Cracow Department of Poultry and Fur Animal Breeding and Animal Hygiene Cracow Poland
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