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Barbarić A, Saftić Martinović L, Milinčić DD, Pešić MB, Marijanović Z, Jakac M, Brčić Karačonji I, Brekalo H, Petrović D, Pavlešić T, Mišetić Ostojić D, Gobin I. Characterization and differentiation of beech and chestnut honeydew honeys: A comparative study. Food Chem 2025; 477:143446. [PMID: 40112441 DOI: 10.1016/j.foodchem.2025.143446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2024] [Revised: 01/24/2025] [Accepted: 02/14/2025] [Indexed: 03/22/2025]
Abstract
This study compares beech (Fagus sylvatica) and chestnut (Castanea sativa) honeydew honeys through analyses of physicochemical properties, pollen composition, phenolic and volatile compounds, and bioactivity. Beech honey exhibited higher antioxidant activity (up to 1.81 mmol TE/kg) compared to chestnut honey (0.79 mmol TE/kg), though both had similar total phenolic and flavonoid content. A total of 37 phenolic compounds, including propolis-derived flavonoids, were detected, with taxifolin and phenylamides as potential markers of botanical origin. Volatile profiles distinguished the types, with beech honey rich in 2-furanmethanol and nonanal, while chestnut honey had unique benzaldehyde and furfural notes. Both honeys demonstrated strong antimicrobial activity, with inhibition zones up to 20 mm and effective MICs (0.025-0.2 g/mL). Although not currently classified by botanical origin in EU regulations, the study highlights distinctive polyphenol and volatile profiles, as well as bioactive properties, between beech and chestnut honeydew honeys.
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Affiliation(s)
- Ana Barbarić
- Faculty of Health Studies, University of Mostar, Zrinskog Frankopana 34, 88000 Mostar, Bosnia and Herzegovina.
| | - Lara Saftić Martinović
- Faculty of Biotechnology and Drug Development, University of Rijeka, Radmile Matejčić 2, 51000 Rijeka, Croatia; Faculty of Medicine, University of Rijeka, Brace Branchetta 20, 51000 Rijeka, Croatia.
| | - Danijel D Milinčić
- Department of Chemistry and Biochemistry, Faculty of Agriculture, University of Belgrade, Nemanjina 6, 11080 Belgrade, Serbia.
| | - Mirjana B Pešić
- Department of Chemistry and Biochemistry, Faculty of Agriculture, University of Belgrade, Nemanjina 6, 11080 Belgrade, Serbia.
| | - Zvonimir Marijanović
- Department of Food Technology and Biotechnology, Faculty of Chemistry and Technology, University of Split, Ruđera Boškovića 35, 21000 Split, Croatia.
| | - Mateo Jakac
- Faculty of Medicine, University of Rijeka, Brace Branchetta 20, 51000 Rijeka, Croatia; Department of Epidemiology, Teaching Institute of Public Health of Istra County, Nazorova 23, 52100, Pula, Croatia.
| | - Irena Brčić Karačonji
- Division of Toxicology, Institute for Medical Research and Occupational Health, Ksaverska cesta 2, 10000 Zagreb, Croatia; Department of Basic Medical Sciences, Faculty of Health Studies, University of Rijeka, Ul. Viktora cara Emina 5, 51000 Rijeka, Croatia.
| | - Helena Brekalo
- Faculty of Agriculture and Food Technology, University of Mostar, Biskupa Čule bb, Mostar 88000, Bosnia and Herzegovina.
| | - Danijela Petrović
- Faculty of Health Studies, University of Mostar, Zrinskog Frankopana 34, 88000 Mostar, Bosnia and Herzegovina; Faculty of Agriculture and Food Technology, University of Mostar, Biskupa Čule bb, Mostar 88000, Bosnia and Herzegovina.
| | - Tomislav Pavlešić
- Center for Viticulture, Enology and Edible Oils Analysis, Croatian Agency for Agriculture and Food, Gorice 68b, 10000 Zagreb, Croatia; University of Rijeka, Trg Braće Mažuranića 10, 51000 Rijeka, Croatia.
| | - Dijana Mišetić Ostojić
- Croatian Veterinary Institute, Veterinary Center Rijeka, Podmurvice 29, 51000 Rijeka, Croatia.
| | - Ivana Gobin
- Faculty of Medicine, University of Rijeka, Brace Branchetta 20, 51000 Rijeka, Croatia; Teaching Institute of Public Health of Primorje-Gorski Kotar County, Krešimirova 52a, Rijeka 51000, Croatia.
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Romário-Silva D, Franchin M, Bueno-Silva B, Saliba ASMC, Sardi JO, Alves-Ferreira T, Lazarini JG, Cunha GA, de Alencar SM, Rosalen PL. Brazilian Organic Honeydew Reduces In Vitro and In Vivo Periodontal Disease-Related Subgingival Biofilm. Foods 2025; 14:997. [PMID: 40232035 PMCID: PMC11941748 DOI: 10.3390/foods14060997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2025] [Revised: 03/07/2025] [Accepted: 03/09/2025] [Indexed: 04/16/2025] Open
Abstract
We investigated the antimicrobial properties and effects on bone resorption of Brazilian organic honeydew (OHD) from the Bracatinga tree (Mimosa scabrella Benth.), a rare honey certified with Denomination of Origin, using a periodontal disease model. Antibiofilm activity was assessed using a subgingival biofilm adhered to the Calgary device. Biofilms were treated with OHD, chlorhexidine (0.12%), or a vehicle twice daily for 1 min starting on day 3, at concentrations of 2× and 10× the minimum inhibitory concentration (MIC). We employed a ligature-induced chronic periodontal disease model and challenged it with Porphyromonas gingivalis in C57BL/6 mice. The chemical profile of OHD was analyzed using LC-ESI-IT-MS/MS. Results were evaluated by measuring bone loss and microbial composition of the ligature biofilm through DNA-DNA hybridization. OHD demonstrated significant activity against P. gingivalis (MIC 4%, MBC 6%) and reduced biofilm viability by 80% in vitro. In vivo, OHD decreased microbial populations and decreased bone loss associated with periodontal disease. Chemical analysis identified seven compounds in OHD, including five flavonoids and two lignans. This Brazilian honeydew from the Atlantic Forest exhibits strong antimicrobial properties and potential as a functional food for oral health, offering a promising alternative for the control and prevention of periodontal disease.
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Affiliation(s)
- Diego Romário-Silva
- Department of Biosciences, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba 13414-903, SP, Brazil (P.L.R.)
- Graduate Program in Integrated Dental Sciences, School of Dentistry of the University of Cuiabá, Cuiabá 78065-900, MT, Brazil;
| | - Marcelo Franchin
- Graduate Program in Biological Sciences, Federal University of Alfenas (Unifal-MG), Alfenas 37130-001, MG, Brazil
| | - Bruno Bueno-Silva
- Department of Biosciences, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba 13414-903, SP, Brazil (P.L.R.)
- Dental Research Division, Guarulhos University, Guarulhos 07023-070, SP, Brazil;
| | - Ana Sofia Martelli Chaib Saliba
- Department of Agri-Food Industry, Food and Nutrition, “Luiz de Queiroz” College of Agriculture, University of São Paulo (USP), Piracicaba 13418-900, SP, Brazil; (A.S.M.C.S.); (S.M.d.A.)
| | | | - Thayna Alves-Ferreira
- Graduate Program in Integrated Dental Sciences, School of Dentistry of the University of Cuiabá, Cuiabá 78065-900, MT, Brazil;
| | - Josy Goldoni Lazarini
- Department of Agri-Food Industry, Food and Nutrition, “Luiz de Queiroz” College of Agriculture, University of São Paulo (USP), Piracicaba 13418-900, SP, Brazil; (A.S.M.C.S.); (S.M.d.A.)
| | - Gustavo Aparecido Cunha
- Graduate Program in Pharmaceutical Sciences, Federal University of Alfenas (Unifal-MG), Alfenas 37130-001, MG, Brazil;
| | - Severino Matias de Alencar
- Department of Agri-Food Industry, Food and Nutrition, “Luiz de Queiroz” College of Agriculture, University of São Paulo (USP), Piracicaba 13418-900, SP, Brazil; (A.S.M.C.S.); (S.M.d.A.)
| | - Pedro Luiz Rosalen
- Department of Biosciences, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba 13414-903, SP, Brazil (P.L.R.)
- Graduate Program in Pharmaceutical Sciences, Federal University of Alfenas (Unifal-MG), Alfenas 37130-001, MG, Brazil;
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3
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Combined Inhibitory Effect of Fir (Abies alba Mill.) Honeydew Honey and Probiotic Bacteria Lactiplantibacillus plantarum on the Growth of Salmonella enterica Serotype Typhimurium. Antibiotics (Basel) 2022; 11:antibiotics11020145. [PMID: 35203748 PMCID: PMC8868498 DOI: 10.3390/antibiotics11020145] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 01/17/2022] [Accepted: 01/22/2022] [Indexed: 11/17/2022] Open
Abstract
Honey is a natural food consisting mainly of sugars, enzymes, amino acids, organic acids, vitamins, minerals and aromatic substances. In addition to specific organoleptic properties, honey also has other components that contribute to its nutritional and health value. Proteins, vitamins, minerals, organic acids and phenolic compounds, the most variable components of honey, are predominantly responsible for its strong bioactive effect. Honeydew honey is a less known type of honey with outstanding antimicrobial and antioxidant properties that also demonstrates prebiotic effects and can promote the growth of probiotic bacteria. Foodborne illnesses can be prevented by using probiotic strains in combination with prebiotics. The aim of this study was for the first time to determine potential synergistic antimicrobial effect of fir (Abies alba Mill.) honeydew honey (HS) and probiotic bacteria Lactiplantibacillus plantarum on Salmonella enterica serotype Typhimurium, a primary cause of foodborne illnesses. The effect of three different samples of fir honeydew honey on the growth of L. plantarum in de Man, Rogosa and Sharpe (MRS) medium and the potential synergistic effect of HSs and L. plantarum on the growth of S. Typhimurium in the Brain Heart Infusion (BHI) medium were examined. The results indicate that concentrations of 1 and 5% of all three HS samples stimulate the growth and metabolic activity of L. plantarum, while a concentration of 10% inhibits the growth of L. plantarum. The concentration of 5% of all three HS and L. plantarum combined inhibits the growth of S. Typhimurium in BHI broth. Fir honeydew honey showed potential prebiotic properties and antimicrobial activity, both of which can synergistically enhance the probiotic efficacy of L. plantarum against S. Typhimurium To conclude, the combination of fir honeydew honey and L. plantarum represents a successful combination against S. Typhimurium and additional experiments are necessary regarding the mechanisms of their combined effect.
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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: 0.7] [Reference Citation Analysis] [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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Promising Antimicrobial Properties of Bioactive Compounds from Different Honeybee Products. Molecules 2021; 26:molecules26134007. [PMID: 34209107 PMCID: PMC8272120 DOI: 10.3390/molecules26134007] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 06/21/2021] [Accepted: 06/27/2021] [Indexed: 01/18/2023] Open
Abstract
Bee products have been known for centuries for their versatile healing properties. In recent decades they have become the subject of documented scientific research. This review aims to present and compare the impact of bee products and their components as antimicrobial agents. Honey, propolis, royal jelly and bee venom are bee products that have antibacterial properties. Sensitivity of bacteria to these products varies considerably between products and varieties of the same product depending on their origin. According to the type of bee product, different degrees of activity were observed against Gram-positive and Gram-negative bacteria, yeasts, molds and dermatophytes, as well as biofilm-forming microorganisms. Pseudomonas aeruginosa turned out to be the most resistant to bee products. An analysis of average minimum inhibitory concentration values for bee products showed that bee venom has the strongest bacterial effectiveness, while royal jelly showed the weakest antibacterial activity. The most challenging problems associated with using bee products for medical purposes are dosage and safety. The complexity and variability in composition of these products raise the need for their standardization before safe and predictable clinical uses can be achieved.
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The Antibacterial Potential of Honeydew Honey Produced by Stingless Bee ( Heterotrigona itama) against Antibiotic Resistant Bacteria. Antibiotics (Basel) 2020; 9:antibiotics9120871. [PMID: 33291356 PMCID: PMC7762028 DOI: 10.3390/antibiotics9120871] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 11/14/2020] [Accepted: 11/18/2020] [Indexed: 12/16/2022] Open
Abstract
Scientific studies about the antibacterial effects of honeydew honey produced by the stingless bee are very limited. In this study, the antibacterial activities of 46 blossom and honeydew honeys produced by both honey bees and stingless bees were evaluated and compared. All bacterial isolates showed varying degrees of susceptibility to blossom and honeydew honeys produced by the honey bee (Apis cerana) and stingless bee (Heterotrigona itama and Geniotrigona thoracica) in agar-well diffusion. All stingless bee honeys managed to inhibit all the isolates but only four out of 23 honey bee honeys achieved that. In comparison with Staphylococcus aureus, Escherichia coli was found to be more susceptible to the antibacterial effects of honey. Bactericidal effects of stingless bee honeys on E. coli were determined with the measurement of endotoxins released due to cell lysis. Based on the outcomes, the greatest antibacterial effects were observed in honeydew honey produced by H. itama. Scanning electron microscopic images revealed the morphological alteration and destruction of E. coli due to the action of this honey. The combination of this honey with antibiotics showed synergistic inhibitory effects on E. coli clinical isolates. This study revealed that honeydew honey produced by H. itama stingless bee has promising antibacterial activity against pathogenic bacteria, including antibiotic resistant strains.
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The role of hydrogen peroxide in the antibacterial activity of different floral honeys. Eur Food Res Technol 2019. [DOI: 10.1007/s00217-019-03393-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Seraglio SKT, Silva B, Bergamo G, Brugnerotto P, Gonzaga LV, Fett R, Costa ACO. An overview of physicochemical characteristics and health-promoting properties of honeydew honey. Food Res Int 2019; 119:44-66. [PMID: 30884675 DOI: 10.1016/j.foodres.2019.01.028] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Revised: 12/22/2018] [Accepted: 01/13/2019] [Indexed: 01/08/2023]
Abstract
Honeydew honey has differentiated chemical and physicochemical characteristics besides potential functional properties such as antimicrobial, anti-inflammatory and antioxidant. In this sense, the interest and consumption of this honey as a functional product by the food industry and consumers have increased. Honeydew honeys usually present dark color, a lower content of monosaccharides and higher values of pH, acidity, electric conductivity, proteins, minerals, phenolic compounds, and oligosaccharides compared to blossom honeys, which contribute to its outstanding biological activities. Consequently, contaminations and adulterations of this honey can occur and compromise the quality, safety and authenticity of honeydew honey. Thus, detailed knowledge of the composition and properties of honeydew honeys is of great importance, especially considering that honeydew honeys are still few studied and therefore underestimated. Therefore, in this review, the physicochemical characteristics, chemical and bioactive composition, functional and health-promoting properties of honeydew honey as well as contamination, adulteration and authenticity of this honey are summarized.
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Affiliation(s)
| | - Bibiana Silva
- Department of Food Science and Technology, Federal University of Santa Catarina, Florianopolis, SC, Brazil
| | - Greici Bergamo
- Department of Food Science and Technology, Federal University of Santa Catarina, Florianopolis, SC, Brazil
| | - Patricia Brugnerotto
- Department of Food Science and Technology, Federal University of Santa Catarina, Florianopolis, SC, Brazil
| | - Luciano Valdemiro Gonzaga
- Department of Food Science and Technology, Federal University of Santa Catarina, Florianopolis, SC, Brazil
| | - Roseane Fett
- Department of Food Science and Technology, Federal University of Santa Catarina, Florianopolis, SC, Brazil
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Bergamo G, Tischer Seraglio SK, Gonzaga LV, Fett R, Costa ACO. Mineral profile as a potential parameter for verifying the authenticity of bracatinga honeydew honeys. Lebensm Wiss Technol 2018. [DOI: 10.1016/j.lwt.2018.07.028] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Bucekova M, Buriova M, Pekarik L, Majtan V, Majtan J. Phytochemicals-mediated production of hydrogen peroxide is crucial for high antibacterial activity of honeydew honey. Sci Rep 2018; 8:9061. [PMID: 29899462 PMCID: PMC5998132 DOI: 10.1038/s41598-018-27449-3] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Accepted: 06/04/2018] [Indexed: 12/21/2022] Open
Abstract
Honeydew honey is increasingly valued due to its pronounced antibacterial potential; however, the underlying mechanism and compounds responsible for the strong antibacterial activity of honeydew honey are still unknown. The aim of this study was to investigate the inhibition of bacterial growth of 23 honeydew honey samples. Activity of bee-derived glucose oxidase (GOX) enzyme, the content of defensin-1 (Def-1) and hydrogen peroxide (H2O2), and total polyphenol content were determined in the 23 honey samples. Our results demonstrated that antibacterial activity of honeydew honey was equivalent to medical-grade manuka and kanuka honey and was abolished by catalase. Although H2O2 is an important factor in the inhibition of bacterial growth, polyphenolic compounds and their interaction with H2O2 are the key factors responsible for high antibacterial activity of honeydew honey. In addition, our results indicated that the antibacterial activity of honeydew honey is not dependent on GOX-mediated production of H2O2 or the presence of Def-1.
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Affiliation(s)
- Marcela Bucekova
- Laboratory of Apidology and Apitherapy, Institute of Molecular Biology, Slovak Academy of Sciences, Dubravska cesta 21, 845 51, Bratislava, Slovakia
| | - Monika Buriova
- Laboratory of Apidology and Apitherapy, Institute of Molecular Biology, Slovak Academy of Sciences, Dubravska cesta 21, 845 51, Bratislava, Slovakia
| | - Ladislav Pekarik
- Plant Science and Biodiversity Center, Slovak Academy of Sciences, Dubravska cesta 9, 845 23, Bratislava, Slovakia
| | - Viktor Majtan
- Department of Microbiology, Faculty of Medicine, Slovak Medical University, Limbova 12, 833 03, Bratislava, Slovakia
| | - Juraj Majtan
- Laboratory of Apidology and Apitherapy, Institute of Molecular Biology, Slovak Academy of Sciences, Dubravska cesta 21, 845 51, Bratislava, Slovakia.
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Pita-Calvo C, Vázquez M. Honeydew Honeys: A Review on the Characterization and Authentication of Botanical and Geographical Origins. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:2523-2537. [PMID: 29462557 DOI: 10.1021/acs.jafc.7b05807] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The commercial interest in honeydew honeys (from the secretions of plants or the excretions of plant-sucking insects found on plants) is increasing because of their higher therapeutic properties compared with those of most blossom honeys (from nectar). However, honeydew honeys have been less studied than blossom honeys. In this work, studies carried out to characterize and authenticate honeydew honeys by their botanical and geographical origins have been reviewed. The identification of honey origins has been approached by two ways: by the analysis of chemical markers and by the development of analytical methodologies combined with multivariate analyses. Some compounds have been suggested as specific botanical markers of several honeydew honeys, such as quercitol and trans-oak lactone for oak honey, 2-aminoacetophenone and propylanisol for holm oak honey, and 1-chloro-octane and tridecane for pine honey. The presence of 3-carene and an unidentified compound in samples was proposed as a way discriminate between Greek and Turkish pine honeys. Chemometric analyses have been applied on chemical compositions and on physicochemical, microscopic, and spectral parameters and have proved to be valuable methods for authenticating honeydew honeys. Analytical methods based on spectral information are suitable for the routine control of honeydew-honey origins because they are fast and require easy sample preparations.
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Affiliation(s)
- Consuelo Pita-Calvo
- Department of Analytical Chemistry, Faculty of Veterinary Science , University of Santiago de Compostela , 27002 Lugo , Spain
| | - Manuel Vázquez
- Department of Analytical Chemistry, Faculty of Veterinary Science , University of Santiago de Compostela , 27002 Lugo , Spain
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12
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Broznić D, Ratkaj I, Malenica Staver M, Kraljević Pavelić S, Žurga P, Bubalo D, Gobin I. Evaluation of the Antioxidant Capacity, Antimicrobial and Antiproliferative Potential of Fir ( Abies alba Mill.) Honeydew Honey Collected from Gorski kotar (Croatia). Food Technol Biotechnol 2018; 56:533-545. [PMID: 30923450 PMCID: PMC6399710 DOI: 10.17113/ftb.56.04.18.5666] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
The paper examines the antiproliferative, antimicrobial and antioxidative effects of fir (Abies alba Mill.) honeydew honey from mountain region of Croatia (Gorski kotar) as a potential replacement for standard antibiotics and chemotherapeutic agents. Cell viability, annexin V assay and flow cytometry analysis served to analyse the antiproliferative effect on, apoptosis induction in and cell death of cancer cell lines: HeLa, MCF-7, SW620, CFPAC-1, MIA PaCa-2 and normal diploid human fibroblasts (BJ). Antimicrobial activity was tested against Staphylococcus and Acinetobacter strains by agar well diffusion and microdilution assays. The DPPH˙ assay determined the radical scavenging activity, while mathematical models helped to evaluate the kinetic data of DPPH˙ inhibition. Antiproliferative effect on all tested cell lines and the prominent effect on normal diploid human fibroblasts (BJ), colorectal adenocarcinoma (SW620, metastatic) and breast epithelial adenocarcinoma (MCF-7, metastatic) was observable. The mechanisms of antiproliferative effect included accumulation of cells in the sub-G1 phase in all tested cells and induction of apoptosis in SW620 and MCF-7 cells predominantly. The antibacterial assays showed that antibiotic-resistant strains of both bacteria, including multi-resistant strain A. baumannii ATCC® BAA-1605™, were sensitive to all tested honey samples. Radical scavenging assay suggests that antioxidants present in the honey possess different radical suppressing abilities and that they react at different rates with radicals, thereby causing two steps of reaction. The results of the study indicate that Croatian fir honeydew honey has a therapeutic potential due to the strong biological activity and can serve to protect human health.
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Affiliation(s)
- Dalibor Broznić
- Department of Chemistry and Biochemistry, Faculty of Medicine, University of Rijeka, Braće Branchetta 20, HR-51000 Rijeka, Croatia
| | - Ivana Ratkaj
- Department of Biotechnology, University of Rijeka, Radmile Matejčić 2, HR-51000 Rijeka, Croatia
| | | | - Sandra Kraljević Pavelić
- Department of Biotechnology, University of Rijeka, Radmile Matejčić 2, HR-51000 Rijeka, Croatia.,Department of Biotechnology, Centre for High Throughput Technologies, University of Rijeka, Radmile Matejčić 2, HR-51000 Rijeka, Croatia
| | - Paula Žurga
- Teaching Institute of Public Health of Primorsko-goranska County, Krešimirova 52a, HR-51000 Rijeka, Croatia
| | - Dragan Bubalo
- Faculty of Agriculture, University of Zagreb, Svetošimunska 25, HR-10000 Zagreb, Croatia
| | - Ivana Gobin
- Department of Microbiology, Faculty of Medicine, University of Rijeka, Braće Branchetta 20, HR-51000 Rijeka, Croatia
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Kuś PM, Jerković I, Marijanović Z, Tuberoso CIG. Screening of Polish Fir Honeydew Honey Using GC/MS, HPLC-DAD, and Physical-Chemical Parameters: Benzene Derivatives and Terpenes as Chemical Markers. Chem Biodivers 2017; 14. [PMID: 28657207 DOI: 10.1002/cbdv.201700179] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2017] [Accepted: 06/23/2017] [Indexed: 01/23/2023]
Abstract
GC/MS of headspace solid phase micro extraction (HS-SPME) and solvent extractives along with targeted HPLC-DAD of Polish fir (Abies alba Mill.) honeydew honey (FHH), were used to determine the chemical profiles and potential markers of botanical origin. Additionally, typical physical-chemical parameters were also assigned. The values determined for FHH were: conductivity (1.2 mS/cm), water content (16.7 g/100 g), pH (4.5), and CIE chromaticity coordinates (L* = 48.4, a* = 20.6, b* = 69.7, C* = 72.9, and h° = 73.5). FHH contained moderate-high total phenolic content (533.2 mg GAE/kg) and antioxidant activity (1.1 mmol TEAC/kg) and (3.2 mmol Fe2+ /kg) in DPPH and FRAP assays. The chemical profiles were dominated by source plant-originated benzene derivatives: 3,4-dihydroxybenzoic acid (up to 8.7 mg/kg, HPLC/honey solution), methyl syringate (up to 14.5%, GC/solvent extracts) or benzaldehyde (up to 43.7%, GC/headspace). Other markers were terpenes including norisoprenoid (4-hydroxy-3,5,6-trimethyl-4-(3-oxobut-1-enyl)cyclohex-2-en-1-one, up to 20.3%, GC/solvent extracts) and monoterpenes, mainly linalool derivatives (up to 49%, GC/headspace) as well as borneol (up to 5.9%, GC/headspace). The application of various techniques allowed comprehensive characterisation of FHH. 4-Hydroxy-3,5,6-trimethyl-4-(3-oxobut-1-enyl)cyclohex-2-en-1-one, coniferyl alcohol, borneol, and benzaldehyde were first time proposed for FHH screening. Protocatechuic acid may be a potential marker of FFH regardless of the geographical origin.
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Affiliation(s)
- Piotr M Kuś
- Department of Pharmacognosy, Wrocław Medical University, ul. Borowska 211a, 50-556, Wrocław, Poland
| | - Igor Jerković
- Department of Organic Chemistry, Faculty of Chemistry and Technology, University of Split, Ruđera Boškovića 35, 21000, Split, Croatia
| | - Zvonimir Marijanović
- Department of Food Technology, Marko Marulić Polytechnic in Knin, Petra Krešimira IV 30, 22300, Knin, Croatia
| | - Carlo I G Tuberoso
- Department of Life and Environmental Sciences, University of Cagliari, via Ospedale 72, 09124, Cagliari, Italy
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Martinotti S, Calabrese G, Ranzato E. Honeydew honey: biological effects on skin cells. Mol Cell Biochem 2017; 435:185-192. [DOI: 10.1007/s11010-017-3067-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Accepted: 05/05/2017] [Indexed: 12/15/2022]
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15
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Affiliation(s)
- R Cooper
- Professor of Microbiology, Centre for Biomedical, Sciences, Cardiff School of Health Sciences, Cardiff Metropolitan University, Western Avenue, Cardiff
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16
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Bolognese F, Bistoletti M, Barbieri P, Orlandi VT. Honey-sensitive Pseudomonas aeruginosa mutants are impaired in catalase A. MICROBIOLOGY-SGM 2016; 162:1554-1562. [PMID: 27516083 DOI: 10.1099/mic.0.000351] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The antimicrobial power of honey seems to be ascribable to several factors, including oxidative and osmotic stress. The aim of this study was to find genetic determinants involved in the response to honey stress in the opportunistic pathogen Pseudomonas aeruginosa, chosen as model micro-organism. A library of transposon mutants of P. aeruginosa PAO1 was constructed and only four mutants unable to grow in presence of fir honeydew honey were selected. All four mutants were impaired in the major H2O2-scavenging enzyme catalase A (KatA). The knockout of katA gene caused sensitivity, as expected, not only to hydrogen peroxide but also to different types of honey including Manuka GMO 220 honey. Genetic complementation, as well as the addition of PAO1 supernatant containing extracellular catalase, restored tolerance to honey stress in all the mutants. As P. aeruginosa PAO1 catalase KatA copes with H2O2 stress, it is conceivable that the antimicrobial activity of honey is, at least partially, due to the presence of hydrogen peroxide in honey or the ability of honey to induce production of hydrogen peroxide. The katA-deficient mutants could be used as tester micro-organisms to compare the power of different types of natural and curative honeys in eliciting oxidative stress mediated by hydrogen peroxide.
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Affiliation(s)
- Fabrizio Bolognese
- Dipartimento di Biotecnologie e Scienze della Vita, Università degli Studi dell'Insubria, Varese, Italy
| | - Michela Bistoletti
- Dipartimento di Biotecnologie e Scienze della Vita, Università degli Studi dell'Insubria, Varese, Italy
| | - Paola Barbieri
- Dipartimento di Biotecnologie e Scienze della Vita, Università degli Studi dell'Insubria, Varese, Italy
| | - Viviana Teresa Orlandi
- Dipartimento di Biotecnologie e Scienze della Vita, Università degli Studi dell'Insubria, Varese, Italy
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17
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Horniackova M, Bucekova M, Valachova I, Majtan J. Effect of gamma radiation on the antibacterial and antibiofilm activity of honeydew honey. Eur Food Res Technol 2016. [DOI: 10.1007/s00217-016-2725-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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18
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Carter DA, Blair SE, Cokcetin NN, Bouzo D, Brooks P, Schothauer R, Harry EJ. Therapeutic Manuka Honey: No Longer So Alternative. Front Microbiol 2016; 7:569. [PMID: 27148246 PMCID: PMC4837971 DOI: 10.3389/fmicb.2016.00569] [Citation(s) in RCA: 98] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Accepted: 04/05/2016] [Indexed: 12/18/2022] Open
Abstract
Medicinal honey research is undergoing a substantial renaissance. From a folklore remedy largely dismissed by mainstream medicine as “alternative”, we now see increased interest by scientists, clinical practitioners and the general public in the therapeutic uses of honey. There are a number of drivers of this interest: first, the rise in antibiotic resistance by many bacterial pathogens has prompted interest in developing and using novel antibacterials; second, an increasing number of reliable studies and case reports have demonstrated that certain honeys are very effective wound treatments; third, therapeutic honey commands a premium price, and the honey industry is actively promoting studies that will allow it to capitalize on this; and finally, the very complex and rather unpredictable nature of honey provides an attractive challenge for laboratory scientists. In this paper we review manuka honey research, from observational studies on its antimicrobial effects through to current experimental and mechanistic work that aims to take honey into mainstream medicine. We outline current gaps and remaining controversies in our knowledge of how honey acts, and suggest new studies that could make honey a no longer “alternative” alternative.
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Affiliation(s)
- Dee A Carter
- School of Life and Environmental Sciences, University of Sydney, Sydney NSW, Australia
| | - Shona E Blair
- The ithree institute, University of Technology Sydney, Sydney NSW, Australia
| | - Nural N Cokcetin
- The ithree institute, University of Technology Sydney, Sydney NSW, Australia
| | - Daniel Bouzo
- The ithree institute, University of Technology Sydney, Sydney NSW, Australia
| | - Peter Brooks
- University of the Sunshine Coast, Maroochydore QLD, Australia
| | | | - Elizabeth J Harry
- The ithree institute, University of Technology Sydney, Sydney NSW, Australia
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Kuś PM, Szweda P, Jerković I, Tuberoso CIG. Activity of Polish unifloral honeys against pathogenic bacteria and its correlation with colour, phenolic content, antioxidant capacity and other parameters. Lett Appl Microbiol 2016; 62:269-76. [PMID: 26693829 DOI: 10.1111/lam.12541] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Revised: 12/12/2015] [Accepted: 12/14/2015] [Indexed: 01/11/2023]
Abstract
UNLABELLED The use of honey as an antimicrobial agent gains importance due to often ineffectiveness of conventional treatment. However, activity of honey depends mainly on its botanical and geographical origin. To date, antimicrobial potential of Polish honeys has not yet been entirely investigated. In this study, 37 unifloral samples of 14 honey types (including rare varieties) from Poland were analysed and compared with manuka honey. The most active were cornflower, thyme and buckwheat honeys. Their MICs ranged from 3·12 to 25·00%, (depending on tested micro-organism) and often were lower than for manuka honey. Additionally, colour, antioxidant activity, total phenols, pH and conductivity were assessed and significant correlations (P < 0·05) of MICs with several parameters were found. The most active were darker honeys, with strong yellow colour component, rich in phenolics, with high conductivity and water content. The honey antibacterial properties depended mainly on peroxide mechanism and were vulnerable to excessive heating, but quite stable during storage in cold. A number of honey samples showed potential as effective antimicrobial agents. The observed correlations of MICs and physical-chemical parameters help to understand better the factors impacting the antibacterial activity. SIGNIFICANCE AND IMPACT OF THE STUDY Honey is a promising agent in the treatment of non-healing infected wounds. Thirty-seven unifloral samples of 14 honey varieties from Poland were analysed for their antimicrobial activity and compared with manuka honey. Several honey types exert even higher antimicrobial potential and could be introduced to wound therapy. Additionally, positive correlations of the antimicrobial activity were found, especially with yellow colour and could be important in the search and screening of the honey active against Escherichia coli.
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Affiliation(s)
- P M Kuś
- Department of Pharmacognosy, Wrocław Medical University, Wrocław, Poland
| | - P Szweda
- Department of Pharmaceutical Technology and Biochemistry, Faculty of Chemistry, Gdańsk University of Technology, Gdańsk, Poland
| | - I Jerković
- Deptartment of Organic Chemistry, Faculty of Chemistry & Technology, University of Split, Split, Croatia
| | - C I G Tuberoso
- Department of Life & Environmental Sciences, University of Cagliari, Cagliari, Italy
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Abstract
Honey has been widely accepted as food and medicine by all generations, traditions, and civilizations, both ancient and modern. For at least 2700 years, honey has been used by humans to treat a variety of ailments through topical application, but only recently have the antiseptic and antimicrobial properties of honey been discovered. Honey has been reported to be effective in a number of human pathologies. Clinical studies have demonstrated that application of honey to severely infected cutaneous wounds rapidly clears infection from the wound and improves tissue healing. A large number of in vitro and limited clinical studies have confirmed the broad-spectrum antimicrobial (antibacterial, antifungal, antiviral, and antimycobacterial) properties of honey, which may be attributed to the acidity (low pH), osmotic effect, high sugar concentration, presence of bacteriostatic and bactericidal factors (hydrogen peroxide, antioxidants, lysozyme, polyphenols, phenolic acids, flavonoids, methylglyoxal, and bee peptides), and increase in cytokine release, and to immune modulating and anti-inflammatory properties of honey; the antimicrobial action involves several mechanisms. Despite a large amount of data confirming the antimicrobial activity of honey, there are no studies that support the systemic use of honey as an antibacterial agent.
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Majtanova N, Vodrazkova E, Kurilova V, Horniackova M, Cernak M, Cernak A, Majtan J. Complementary treatment of contact lens-induced corneal ulcer using honey: A case report. Cont Lens Anterior Eye 2015; 38:61-3. [DOI: 10.1016/j.clae.2014.09.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Revised: 08/28/2014] [Accepted: 09/11/2014] [Indexed: 10/24/2022]
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22
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Mayer A, Slezak V, Takac P, Olejnik J, Majtan J. Treatment of non-healing leg ulcers with honeydew honey. J Tissue Viability 2014; 23:94-7. [PMID: 25187187 DOI: 10.1016/j.jtv.2014.08.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2013] [Revised: 07/18/2014] [Accepted: 08/07/2014] [Indexed: 12/20/2022]
Abstract
BACKGROUND Honey is used as a traditional medicine for centuries by different cultures for the treatment of various disorders. However, not all honeys exhibit equal antimicrobial potency and only a few meet the criteria for clinical usage. AIM The aim of the study was to determine clinical efficacy of sterilised honeydew honey in the treatment of the lower leg ulcers in 25 patients. Furthermore, we evaluated honey acceptability of patients in terms of pain and overall satisfaction. METHODOLOGY A total of 25 patients with chronic venous leg ulcers were recruited into this study. The 100% γ-irradiated sterile honeydew honey was applied onto the cleaned wounds and each wound was assessed at the least two times in for a period of 6 weeks. RESULTS During the course of treatment, the average wound area of all patients decreased significantly from 51 (3-150) to 22 (0-91) cm(2). Eighteen patients (72%) experienced a decrease in reported pain levels while five patients (20%) experienced the same level of pain throughout the study. The overall satisfaction with honey treatment was positive in 80% of patients. Only two patients experienced poor tolerance due to problems at ulcer site related to pain. CONCLUSION Based on these findings, honeydew honey has the potential to be one of the medical-grade honeys.
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Affiliation(s)
- Alexander Mayer
- Department of Surgery, University Hospital and Faculty of Medicine, Slovak Medical University, Bratislava, Slovakia
| | - Viliam Slezak
- University Hospital of the Merciful Brothers, Bratislava, Slovakia
| | - Peter Takac
- Institute of Zoology, Slovak Academy of Sciences, Bratislava, Slovakia; Scientica, s.r.o., Bratislava, Slovakia
| | - Juraj Olejnik
- Department of Surgery, University Hospital and Faculty of Medicine, Slovak Medical University, Bratislava, Slovakia
| | - Juraj Majtan
- Institute of Zoology, Slovak Academy of Sciences, Bratislava, Slovakia; Department of Microbiology, Faculty of Medicine, Slovak Medical University, Bratislava, Slovakia.
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23
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Biglari B, Swing T, Büchler A, Ferbert T, Simon A, Schmidmaier G, Moghaddam A. Medical honey in professional wound care. ACTA ACUST UNITED AC 2014. [DOI: 10.1586/edm.12.66] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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24
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Jenkins R, Burton N, Cooper R. Proteomic and genomic analysis of methicillin-resistant Staphylococcus aureus (MRSA) exposed to manuka honey in vitro demonstrated down-regulation of virulence markers. J Antimicrob Chemother 2013; 69:603-15. [PMID: 24176984 PMCID: PMC3922154 DOI: 10.1093/jac/dkt430] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Objectives Methicillin-resistant Staphylococcus aureus (MRSA) is an important pathogen. Its resistance to multiple antibiotics and its prevalence in healthcare establishments make it a serious threat to human health that requires novel interventions. Manuka honey is a broad-spectrum antimicrobial agent that is gaining acceptance in the topical treatment of wounds. Because its mode of action is only partially understood, proteomic and genomic analysis was used to investigate the effects of manuka honey on MRSA at a molecular level. Methods Two-dimensional gel electrophoresis with dual-channel imaging was combined with matrix-assisted laser desorption ionization–time of flight mass spectrometry to determine the identities of differentially expressed proteins. The expression of the corresponding genes was investigated by quantitative PCR. Microarray analysis provided an overview of alterations in gene expression across the MRSA genome. Results Genes with increased expression following exposure to manuka honey were associated with glycolysis, transport and biosynthesis of amino acids, proteins and purines. Those with decreased expression were involved in the tricarboxylic acid cycle, cell division, quorum sensing and virulence. The greatest reductions were seen in genes conferring virulence (sec3, fnb, hlgA, lip and hla) and coincided with a down-regulation of global regulators, such as agr, sae and sarV. A model to illustrate these multiple effects was constructed and implicated glucose, which is one of the major sugars contained in honey. Conclusions A decreased expression of virulence genes in MRSA will impact on its pathogenicity and needs to be investigated in vivo.
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Affiliation(s)
- Rowena Jenkins
- Cardiff Metropolitan University, Western Avenue, Cardiff CF5 2YB, UK
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Simova S, Atanassov A, Shishiniova M, Bankova V. A rapid differentiation between oak honeydew honey and nectar and other honeydew honeys by NMR spectroscopy. Food Chem 2012; 134:1706-10. [PMID: 25006002 DOI: 10.1016/j.foodchem.2012.03.071] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2011] [Revised: 12/05/2011] [Accepted: 03/19/2012] [Indexed: 11/17/2022]
Abstract
An NMR-based approach for rapid differentiation of oak honeydew honey from all other honey types (floral and other honeydew honeys) was proposed. It is based on the identification of the signals of the protons and the carbon of the methylene group of quercitol in the (1)H and (13)C NMR spectra of honey. The presence of quercitol was supported by TOCSY spectroscopy. Quercitol is a deoxyinositol which is regarded as a good taxonomic marker for the genus Quercus. All samples of oak honeydew honey contained quercitol, while in floral honey samples and honeydew honeys from fir and spruce it was absent. In addition, the described approach is promising with respect to quercitol quantification in honey by qNMR.
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Affiliation(s)
- S Simova
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev str., Bl. 9, 1113 Sofia, Bulgaria
| | - A Atanassov
- Joint Genomic Center, 8 Dragan Tsankov Blvd., 1164 Sofia, Bulgaria
| | - M Shishiniova
- Joint Genomic Center, 8 Dragan Tsankov Blvd., 1164 Sofia, Bulgaria
| | - V Bankova
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev str., Bl. 9, 1113 Sofia, Bulgaria
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Brudzynski K, Lannigan R. Mechanism of Honey Bacteriostatic Action Against MRSA and VRE Involves Hydroxyl Radicals Generated from Honey's Hydrogen Peroxide. Front Microbiol 2012; 3:36. [PMID: 22347223 PMCID: PMC3273858 DOI: 10.3389/fmicb.2012.00036] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2011] [Accepted: 01/23/2012] [Indexed: 02/06/2023] Open
Abstract
It has been recently reported that honey hydrogen peroxide in conjunction with unknown honey components produced cytotoxic effects resulting in bacterial growth inhibition and DNA degradation. The objective of this study was twofold: (a) to investigate whether the coupling chemistry involving hydrogen peroxide is responsible for a generation of hydroxyl radicals and (b) whether (•)OH generation affects growth of multi-drug resistant clinical isolates. The susceptibility of five different strains of methicillin-resistant Staphylococcus aureus (MRSA) and four strains of vancomycin-resistant Enterococcus faecium (VRE) isolates from infected wounds to several honeys was evaluated using broth microdilution assay. Isolates were identified to genus and species and their susceptibility to antibiotics was confirmed using an automated system (Vitek(®), Biomérieux(®)). The presence of the mec(A) gene, nuc gene and van(A) and (B) genes were confirmed by polymerase chain reaction. Results showed that no clinical isolate was resistant to selected active honeys. The median difference in honeys MICs against these strains ranged between 12.5 and 6.25% v/v and was not different from the MIC against standard Escherichia coli and Bacillus subtilis. Generation of (•)OH during bacteria incubation with honeys was analyzed using 3'-(p-aminophenyl) fluorescein (APF) as the (•)OH trap. The (•)OH participation in growth inhibition was monitored directly by including APF in broth microdilution assay. The growth of MRSA and VRE was inhibited by (•)OH generation in a dose-dependent manner. Exposure of MRSA and VRE to honeys supplemented with Cu(II) augmented production of (•)OH by 30-fold and increased honey bacteriostatic potency from MIC(90) 6.25 to MIC(90)< 0.78% v/v. Pretreatment of honeys with catalase prior to their supplementation with Cu ions fully restored bacterial growth indicating that hydroxyl radicals were produced from H(2)O(2) via the Fenton-type reaction. In conclusion, we have demonstrated for the first time that bacteriostatic effect of honeys on MRSA and VRE was dose-dependently related to generation of (•)OH from honey H(2)O(2).
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Affiliation(s)
- Katrina Brudzynski
- API-Medicals, Brock UniversitySt. Catharines, ON, Canada
- Department of Biological Sciences, Brock UniversitySt. Catharines, ON, Canada
| | - Robert Lannigan
- Department of Clinical Microbiology, London Health Sciences CentreLondon, ON, Canada
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Vlcekova P, Krutakova B, Takac P, Kozanek M, Salus J, Majtan J. Alternative treatment of gluteofemoral fistulas using honey: a case report. Int Wound J 2011; 9:100-3. [PMID: 21977900 DOI: 10.1111/j.1742-481x.2011.00844.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Perianal fistula is a common disease that affects particular patients with inflammatory bowel disease. Honey has been used as a natural remedy for centuries for the treatment of various disorders. We report a patient with persistent fistulas, in whom conventional medical and surgical therapy failed. In this case, most of fistulas in gluteofemoral region were completely healed and closed after 6 months of treatment with honey. In addition, honey reduced inflammation, pain and induration of affected region. This medical approach positively affected patient's mental condition and also improved his quality of life.
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Cernak M, Majtanova N, Cernak A, Majtan J. Honey Prophylaxis Reduces the Risk of Endophthalmitis During Perioperative Period of Eye Surgery. Phytother Res 2011; 26:613-6. [PMID: 22508360 DOI: 10.1002/ptr.3606] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2011] [Revised: 06/04/2011] [Accepted: 06/11/2011] [Indexed: 11/12/2022]
Affiliation(s)
- Martin Cernak
- Department of Ophthalmology, Faculty of Medicine; Slovak Medical University; Antolska 11; 851 07; Bratislava; Slovakia
| | - Nora Majtanova
- Department of Ophthalmology, Faculty of Medicine; Slovak Medical University; Antolska 11; 851 07; Bratislava; Slovakia
| | - Andrej Cernak
- Department of Ophthalmology, Faculty of Medicine; Slovak Medical University; Antolska 11; 851 07; Bratislava; Slovakia
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