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Akkuzu N, Karakas CY, Devecioglu D, Karbancıoglu Guler F, Sagdic O, Karadag A. Emulsion-based edible chitosan film containing propolis extract to extend the shelf life of strawberries. Int J Biol Macromol 2024; 273:133108. [PMID: 38876246 DOI: 10.1016/j.ijbiomac.2024.133108] [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: 04/05/2024] [Revised: 05/26/2024] [Accepted: 06/10/2024] [Indexed: 06/16/2024]
Abstract
In this study, propolis was first loaded into a conventional oil-in-water emulsion, which was combined with a chitosan film-forming solution to produce propolis emulsion-loaded film (PEF). Strawberries inoculated with Botrytis cinerea coated with PEF and blank emulsion-loaded films (BEF) were stored for 14 days at 4 °C. Compared to BEF, PEF showed superior mechanical and oxygen barrier properties, as well as antioxidant activities, but higher moisture permeability. PEF showed less oil agglomeration on the film surface after drying, as demonstrated by scanning electron microscopy (SEM) analysis. Compared to uncoated strawberries, coatings did not have a significant effect on weight loss or firmness during storage. In contrast, coated strawberries showed elevated total phenolics, anthocyanins, and ascorbic acid retention; however, PEF-coating yielded higher values. Moreover, the PEF coating resulted in a significantly lower reduction of organic acid and total soluble solids. Mold growth was visible in both uncoated and BEF-coated strawberries after 7 days of storage, while PEF-coated fruits showed no visible mold until the end of storage. Starting from day 4, PEF-coated fruits showed lower mold counts (~2 log CFU/g) than other samples. Therefore, the PEF prepared in this study has application potential for the preservation of fresh fruits.
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Affiliation(s)
- Nisa Akkuzu
- Faculty of Chemical and Metallurgical Engineering, Food Engineering, Yildiz Technical University, Istanbul, Turkiye; Faculty of Chemical and Metallurgical Engineering, Food Engineering, Istanbul Technical University, Istanbul, Turkiye
| | - Canan Yagmur Karakas
- Faculty of Chemical and Metallurgical Engineering, Food Engineering, Yildiz Technical University, Istanbul, Turkiye
| | - Dilara Devecioglu
- Faculty of Chemical and Metallurgical Engineering, Food Engineering, Istanbul Technical University, Istanbul, Turkiye
| | - Funda Karbancıoglu Guler
- Faculty of Chemical and Metallurgical Engineering, Food Engineering, Istanbul Technical University, Istanbul, Turkiye
| | - Osman Sagdic
- Faculty of Chemical and Metallurgical Engineering, Food Engineering, Yildiz Technical University, Istanbul, Turkiye
| | - Ayse Karadag
- Faculty of Chemical and Metallurgical Engineering, Food Engineering, Yildiz Technical University, Istanbul, Turkiye.
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Geyik F, Kaya S, Yılmaz DE, Demirci H, Akmayan İ, Özbek T, Acar S. Propolis-Loaded Poly(lactic- co-glycolic Acid) Nanofibers: An In Vitro Study. ACS OMEGA 2024; 9:14054-14062. [PMID: 38560001 PMCID: PMC10975591 DOI: 10.1021/acsomega.3c09492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 01/26/2024] [Accepted: 02/21/2024] [Indexed: 04/04/2024]
Abstract
Nanofibers have high potential through their high porosity, small pore sizes, lightweight materials, and their ability to mimic the extracellular matrix structure for use in the manufacture of wound dressings for wound treatment. In this study, poly(lactic-co-glycolic acid) (PLGA) nanofibers were produced by electrospinning. Propolis was loaded into the PLGA nanofibers by the dropping method. The average diameters and effects of propolis loading on the morphology of 37.5, 50, and 100% propolis-loaded PLGA nanofibers (PLGA-P37.5, PLGA-P50, and PLGA-P100) were evaluated by scanning electron microscopy (SEM). The successful loading of propolis into PLGA nanofibers was confirmed with Fourier transform infrared spectroscopy (FTIR) analysis. In vitro propolis release was examined at physiological pH. The antioxidant activity of propolis-loaded nanofibers was studied with 2,2-diphenyl-1-picrylhydrazyl (DPPH). Antimicrobial activities of the nanofibers against Escherichia coli, Staphylococcus aureus and Candida albicans strains were determined by the disk diffusion method. Consequently, PLGA-P50 and PLGA-P100 showed high antimicrobial activity on S. aureus and C. albicans. Cell viability was tested by 3-[4,5-dimethylthiazole-2-yl]-2,5-diphenyltetrazolium bromide (MTT) assay, and propolis-loaded PLGA nanofibers were found to be biocompatible with human fibroblast cells. In the wound scratch assay, propolis-loaded nanofibers supported wound closure with cell migration and proliferation. Thus, in vitro wound closure properties of propolis-loaded PLGA nanofibers were evaluated for the first time in the literature.
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Affiliation(s)
- Fulya Geyik
- Faculty
of Chemical and Metallurgical Engineering, Department of Bioengineering, Yildiz Technical University, Istanbul 34220, Turkey
| | - Seçil Kaya
- Faculty
of Chemical and Metallurgical Engineering, Department of Bioengineering, Yildiz Technical University, Istanbul 34220, Turkey
| | - Duygu Elif Yılmaz
- Department
of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin 10117, Germany
| | - Hasan Demirci
- Institute
of Functional Anatomy, Charité-Universitätsmedizin
Berlin, Berlin 10115, Germany
| | - İlkgül Akmayan
- Faculty
of Arts and Sciences, Department of Molecular Biology and Genetics, Yildiz Technical University, Istanbul 34220, Turkey
| | - Tülin Özbek
- Faculty
of Arts and Sciences, Department of Molecular Biology and Genetics, Yildiz Technical University, Istanbul 34220, Turkey
| | - Serap Acar
- Faculty
of Chemical and Metallurgical Engineering, Department of Bioengineering, Yildiz Technical University, Istanbul 34220, Turkey
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El-Sakhawy M, Salama A, Tohamy HAS. Applications of propolis-based materials in wound healing. Arch Dermatol Res 2023; 316:61. [PMID: 38151671 PMCID: PMC10752841 DOI: 10.1007/s00403-023-02789-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 10/25/2023] [Accepted: 11/20/2023] [Indexed: 12/29/2023]
Abstract
Due to its excellent antiseptic efficacy and antimicrobial properties, propolis has shown attractive advantages in wound dressings. However, an inclusive review of the propolis-based materials as a wound dressing is still lacking. The current short review summarizes the skin wound healing process, relates evaluation parameters, and then reviews the refined propolis-based materials dressings such as antimicrobial property, adhesion and hemostasis, anti-inflammatory and substance delivery. The approaches implemented to achieve these functions are classified and discussed. Furthermore, applications of propolis wound dressing for treating different types of wounds such as heal wounds, burns, and ulcers are presented. The future directions of propolis-based wound dressings for wound healing are further proposed. This review showed that propolis-based materials might be a promising new dressing for wound occlusion and tissue repairing.
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Affiliation(s)
- Mohamed El-Sakhawy
- Cellulose and Paper Department, National Research Centre, 33 El Bohouth St., Dokki, P.O. 12622, Giza, Egypt.
| | - Ahmed Salama
- Cellulose and Paper Department, National Research Centre, 33 El Bohouth St., Dokki, P.O. 12622, Giza, Egypt
| | - Hebat-Allah S Tohamy
- Cellulose and Paper Department, National Research Centre, 33 El Bohouth St., Dokki, P.O. 12622, Giza, Egypt
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Sadat Mirbagheri M, Akhavan-Mahdavi S, Hasan A, Saeed Kharazmi M, Mahdi Jafari S. Propolis-loaded nanofiber scaffolds based on polyvinyl alcohol and polycaprolactone. Int J Pharm 2023:123186. [PMID: 37385356 DOI: 10.1016/j.ijpharm.2023.123186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 06/24/2023] [Accepted: 06/26/2023] [Indexed: 07/01/2023]
Abstract
Propolis-loaded electrospun nanofibers (PENs) have been regarded as promising candidates for biomedical purposes such as wound healing/dressing owing to their outstanding pharmacological and biological properties. This paper focuses on the development of electrospun nanofibers with optimum levels of propolis (PRP) and two polymer types (polycaprolactone (PCL) and polyvinyl alcohol (PVA)). Hence, response surface methodology (RSM) was employed to investigate the variation of the scaffold characteristics including porosity, average diameter, wettability, release, and tensile strength. For each response, a second-order polynomial model with a high coefficient of determination (R2) values ranging from 0.95 to 0.989 was developed using multiple linear regression analysis. The overall optimum region with the best characteristics was found to be at PCL/6% PRP and PVA/5% PRP. After selecting the optimal samples, the cytotoxicity assay showed no toxicity for the optimal concentrations of PRP. Furthermore, Fourier transform infrared (FTIR) spectra revealed that no new chemical functional groups were introduced in the PENs. Uniform fibers were found in the optimum samples without the appearance of a bead-like structure in the fibers. In conclusion, nanofibers containing the optimal concentration of PRP with suitable properties can be used in biomedical and tissue engineering.
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Affiliation(s)
- Mahnaz Sadat Mirbagheri
- Food Industry Research Co., Gorgan, Iran; Food and Bio-Nanotech International Research Center (Fabiano), Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
| | - Sahar Akhavan-Mahdavi
- Food Industry Research Co., Gorgan, Iran; Food and Bio-Nanotech International Research Center (Fabiano), Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
| | - Anwarul Hasan
- Department of Mechanical and Industrial Engineering, Qatar University, Qatar
| | | | - Seid Mahdi Jafari
- Department of Food Materials and Process Design Engineering, Gorgan University of Agricultural Science and Natural Resources, Gorgan, Iran.
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Saleh S, Salama A, Ali AM, Saleh AK, Elhady BA, Tolba E. Egyptian propolis extract for functionalization of cellulose nanofiber/poly(vinyl alcohol) porous hydrogel along with characterization and biological applications. Sci Rep 2023; 13:7739. [PMID: 37173419 PMCID: PMC10182032 DOI: 10.1038/s41598-023-34901-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 05/09/2023] [Indexed: 05/15/2023] Open
Abstract
Bee propolis is one of the most common natural extracts and has gained significant interest in biomedicine due to its high content of phenolic acids and flavonoids, which are responsible for the antioxidant activity of natural products. The present study report that the propolis extract (PE) was produced by ethanol in the surrounding environment. The obtained PE was added at different concentrations to cellulose nanofiber (CNF)/poly(vinyl alcohol) (PVA), and subjected to freezing thawing and freeze drying methods to develop porous bioactive matrices. Scanning electron microscope (SEM) observations displayed that the prepared samples had an interconnected porous structure with pore sizes in the range of 10-100 μm. The high performance liquid chromatography (HPLC) results of PE showed around 18 polyphenol compounds, with the highest amounts of hesperetin (183.7 µg/mL), chlorogenic acid (96.9 µg/mL) and caffeic acid (90.2 µg/mL). The antibacterial activity results indicated that both PE and PE-functionalized hydrogels exhibited a potential antimicrobial effects against Escherichia coli, Salmonella typhimurium, Streptococcus mutans, and Candida albicans. The in vitro test cell culture experiments indicated that the cells on the PE-functionalized hydrogels had the greatest viability, adhesion, and spreading of cells. Altogether, these data highlight the interesting effect of propolis bio-functionalization to enhance the biological features of CNF/PVA hydrogel as a functional matrix for biomedical applications.
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Affiliation(s)
- Safaa Saleh
- Department of Physics, Faculty of Science, Al-Azhar University, (Girls Branch), P.O Box 11884, Cairo, Egypt
| | - Ahmed Salama
- Cellulose and Paper Department, National Research Centre, 33 El-Bohouth St., Dokki, P.O. 12622, Giza, Egypt
| | - Amira M Ali
- Department of Physics, Faculty of Science, Al-Azhar University, (Girls Branch), P.O Box 11884, Cairo, Egypt
| | - Ahmed K Saleh
- Cellulose and Paper Department, National Research Centre, 33 El-Bohouth St., Dokki, P.O. 12622, Giza, Egypt.
| | - Bothaina Abd Elhady
- Polymers and Pigments Department, National Research Centre, 33 El-Bohouth St., Dokki, P.O. 12622, Giza, Egypt
| | - Emad Tolba
- Polymers and Pigments Department, National Research Centre, 33 El-Bohouth St., Dokki, P.O. 12622, Giza, Egypt
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Russo C, Piccioni M, Lorenzini ML, Catalano C, Ambrogi V, Pagiotti R, Pietrella D. Bud-Poplar-Extract-Embedded Chitosan Films as Multifunctional Wound Healing Dressing. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27227757. [PMID: 36431858 PMCID: PMC9695786 DOI: 10.3390/molecules27227757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 11/03/2022] [Accepted: 11/07/2022] [Indexed: 11/12/2022]
Abstract
Wounds represent a major global health challenge. Acute and chronic wounds are sensitive to bacterial infection. The wound environment facilitates the development of microbial biofilms, delays healing, and promotes chronic inflammation processes. The aim of the present work is the development of chitosan films embedded with bud poplar extract (BPE) to be used as wound dressing for avoiding biofilm formation and healing delay. Chitosan is a polymer with antimicrobial and hydrating properties used in wound dressing, while BPE has antibacterial, antioxidative, and anti-inflammatory properties. Chitosan-BPE films showed good antimicrobial and antibiofilm properties against Gram-positive bacteria and the yeast Candida albicans. BPE extract induced an immunomodulatory effect on human macrophages, increasing CD36 expression and TGFβ production during M1/M2 polarization, as observed by means of cytofluorimetric analysis and ELISA assay. Significant antioxidant activity was revealed in a cell-free test and in a human neutrophil assay. Moreover, the chitosan-BPE films induced a good regenerative effect in human fibroblasts by in vitro cell migration assay. Our results suggest that chitosan-BPE films could be considered a valid plant-based antimicrobial material for advanced dressings focused on the acceleration of wound repair.
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Affiliation(s)
- Carla Russo
- Medical Microbiology Unit, Department of Medicine and Surgery, University of Perugia, Piazzale Sereni, Building D, 4th Floor, 06129 Perugia, Italy
| | - Miranda Piccioni
- Biochemical Sciences and Health Unit, Department of Pharmaceutical Sciences, University of Perugia, Via del Giochetto, 06122 Perugia, Italy
| | - Maria Laura Lorenzini
- Pharmaceutical Technology Unit, Department of Pharmaceutical Sciences, University of Perugia, Via del Liceo 1, 06123 Perugia, Italy
| | - Chiara Catalano
- Biochemical Sciences and Health Unit, Department of Pharmaceutical Sciences, University of Perugia, Via del Giochetto, 06122 Perugia, Italy
| | - Valeria Ambrogi
- Pharmaceutical Technology Unit, Department of Pharmaceutical Sciences, University of Perugia, Via del Liceo 1, 06123 Perugia, Italy
| | - Rita Pagiotti
- Biochemical Sciences and Health Unit, Department of Pharmaceutical Sciences, University of Perugia, Via del Giochetto, 06122 Perugia, Italy
| | - Donatella Pietrella
- Medical Microbiology Unit, Department of Medicine and Surgery, University of Perugia, Piazzale Sereni, Building D, 4th Floor, 06129 Perugia, Italy
- Correspondence:
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