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Szmechtyk T, Małecka M. Phytochemicals from Bark Extracts and Their Applicability in the Synthesis of Thermosetting Polymers: An Overview. MATERIALS (BASEL, SWITZERLAND) 2024; 17:2123. [PMID: 38730929 PMCID: PMC11084627 DOI: 10.3390/ma17092123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 04/09/2024] [Accepted: 04/19/2024] [Indexed: 05/13/2024]
Abstract
This review focuses on recent research on the phytochemicals found in bark from different trees and their potential to be used as substrates for the synthesis of thermosetting resins. Recent studies about the influence of each bark harvesting step on the extracted phytochemicals, from debarking to extraction, are investigated. A comparison of bark extracts in terms of the correlation between extraction conditions and efficiency (based on the total phenolic content (TPC) and extraction yield) is presented for six groups of trees (Norway spruce, pine species, other conifers, oak species, other deciduous trees of the north temperate zone, tropical and subtropical trees) and evaluated. The evaluation revealed that there is an interesting relationship between the extraction time and the type of solvent for some types of tree bark. It was found that a relatively short extraction time and a solvent temperature close to the boiling point are favourable. The latest research on the application of bark extracts in different types of thermosetting resins is described. This review discusses the attractiveness of bark extracts in terms of functional groups and the possibilities arising from extractable phytochemicals. In addition, different approaches (selective versus holistic) and methods of application are presented and compared.
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Affiliation(s)
- Tomasz Szmechtyk
- Department of Physical Chemistry, Faculty of Chemistry, University of Łódź, Pomorska 163/165, 90-236 Łódź, Poland;
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Mohamed ME, El-Shafae AM, Fikry E, Elbaramawi SS, Elbatreek MH, Tawfeek N. Casuarina glauca branchlets' extract as a potential treatment for ulcerative colitis: chemical composition, in silico and in vivo studies. Front Pharmacol 2023; 14:1322181. [PMID: 38196993 PMCID: PMC10774231 DOI: 10.3389/fphar.2023.1322181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 11/20/2023] [Indexed: 01/11/2024] Open
Abstract
Ulcerative colitis (UC) is an inflammatory bowel disease that is often resistant to current treatment options, leading to a need for alternative therapies. Herbal products have shown promise in managing various conditions, including UC. However, the potential of Casuarina glauca branchlets ethanolic extract (CGBRE) in treating UC has not been explored. This study aimed to analyze the chemical composition of CGBRE and evaluate its efficacy in UC treatment through in silico and in vivo experiments. LC-ESI-MS/MS was used to identify 86 compounds in CGBRE, with 21 potential bioactive compounds determined through pharmacokinetic analysis. Network pharmacology analysis revealed 171 potential UC targets for the bioactive compounds, including EGFR, LRRK2, and HSP90 as top targets, which were found to bind to key CGBRE compounds through molecular docking. Molecular docking findings suggested that CGBRE may be effective in the prevention or treatment of ulcerative colitis mediated by these proteins, where key CGBRE compounds exhibited good binding affinities through formation of numerous interactions. In vivo studies in rats with acetic acid-induced UC demonstrated that oral administration of 300 mg/kg CGBRE for 6 days reduced UC symptoms and colonic expression of EGFR, LRRK2, and HSP90. These findings supported the therapeutic potential of CGBRE in UC and suggested the need for further preclinical and clinical investigation.
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Affiliation(s)
- Maged E. Mohamed
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa, Saudi Arabia
| | - Azza M. El-Shafae
- Department of Pharmacognosy, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt
| | - Eman Fikry
- Department of Pharmacognosy, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt
| | - Samar S. Elbaramawi
- Department of Medicinal Chemistry, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt
| | - Mahmoud H. Elbatreek
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt
| | - Nora Tawfeek
- Department of Pharmacognosy, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt
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Hofmann T, Visi-Rajczi E, Vaculciakova S, Guran R, Voberkova S, Vrsanska M, Zitka O, Albert L. Direct microwave treatment enhances antioxidant and antibacterial properties of the seed extracts of Kékfrankos grapes. Heliyon 2023; 9:e21497. [PMID: 38027737 PMCID: PMC10654152 DOI: 10.1016/j.heliyon.2023.e21497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 10/17/2023] [Accepted: 10/23/2023] [Indexed: 12/01/2023] Open
Abstract
The Kékfrankos is the most frequently cultivated wine grape in Hungary, with a significant national and regional impact, resulting in considerable amounts of byproducts (e.g. pomace, seeds). To the best of our knowledge no research has been conducted on the antioxidant and antibacterial properties of its seed extracts (GSE). A novel apporach of applying direct microwave treatment on grape seeds was implemented for the first time to enhance antioxidant and antimicrobial properties of GSE. Antioxidant properties were assayed using the DPPH (2,2-diphenyl-1-picrylhydrazyl), FRAP (Ferric Reducing Antioxidant Power) and TPC (Folin-Ciocâlteu's Total Polyphenol Content) methods. Profile and content of polyphenols was studied using high-performance liquid chromatography/tandem mass spectrometry and matrix-assisted laser desorption/ionization mass spectrometry. Antibacterial properties were evaluated using Gram-positive Staphylococcus aureus (SA), methicillin-resistant Staphylococcus aureus (ST239) (MRSA) and Gram-negative Escherichia coli (EC) bacteria strains. Results proved that the mild direct microwave treatment of grape seeds significantly increased total polyphenol, (+)-catechin, (-)-epicatechin as well as antioxidant capacity levels by 20-30 % compared to untreated samples and resulted the best antibacterial properties based on bacterial growth curves (SA and MRSA: 0.015625 mg/mL, EC: 0.25 mg/mL). Results justify the importance of further pharmacological investigations on Kékfrankos grape seed extracts and that the direct microwave treatment of grape seeds is an innovative approach for the fast and cost efficient improvement of the antibacterial properties of grape seed extracts.
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Affiliation(s)
- Tamás Hofmann
- University of Sopron, Faculty of Forestry, Institute of Environmental Protection and Nature Conservation, Bajcsy-Zsilinszky út 4, Sopron, 9400, Hungary
| | - Eszter Visi-Rajczi
- University of Sopron, Faculty of Forestry, Institute of Environmental Protection and Nature Conservation, Bajcsy-Zsilinszky út 4, Sopron, 9400, Hungary
| | - Silvia Vaculciakova
- Department of Chemistry and Biochemistry, Faculty of AgriSciences, Mendel University in Brno, CZ-61300, Brno, Czech Republic
| | - Roman Guran
- Department of Chemistry and Biochemistry, Faculty of AgriSciences, Mendel University in Brno, CZ-61300, Brno, Czech Republic
| | - Stanislava Voberkova
- Department of Chemistry and Biochemistry, Faculty of AgriSciences, Mendel University in Brno, CZ-61300, Brno, Czech Republic
| | - Martina Vrsanska
- Department of Chemistry and Biochemistry, Faculty of AgriSciences, Mendel University in Brno, CZ-61300, Brno, Czech Republic
| | - Ondrej Zitka
- Department of Chemistry and Biochemistry, Faculty of AgriSciences, Mendel University in Brno, CZ-61300, Brno, Czech Republic
| | - Levente Albert
- University of Sopron, Faculty of Forestry, Institute of Environmental Protection and Nature Conservation, Bajcsy-Zsilinszky út 4, Sopron, 9400, Hungary
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Häsler Gunnarsdottir S, Sommerauer L, Schnabel T, Oostingh GJ, Schuster A. Antioxidative and Antimicrobial Evaluation of Bark Extracts from Common European Trees in Light of Dermal Applications. Antibiotics (Basel) 2023; 12:antibiotics12010130. [PMID: 36671331 PMCID: PMC9854852 DOI: 10.3390/antibiotics12010130] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 01/03/2023] [Accepted: 01/04/2023] [Indexed: 01/12/2023] Open
Abstract
Plant species have developed effective defense strategies for colonizing diverse habitats and protecting themselves from numerous attacks from a wide range of organisms, including insects, vertebrates, fungi, and bacteria. The bark of trees in particular constitutes a number of components that protect against unwanted intruders. This review focuses on the antioxidative, dermal immunomodulatory, and antimicrobial properties of bark extracts from European common temperate trees in light of various skin pathogens, wound healing, and the maintenance of skin health. The sustainability aspect, achieved by utilizing the bark, which is considered a byproduct in the forest industry, is addressed, as are various extraction methods applied to retrieve extracts from bark.
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Affiliation(s)
| | - Lukas Sommerauer
- Department of Forest Products Technology & Timber Constructions, Salzburg University of Applied Sciences, Markt 136a, 5431 Kuchl, Austria
- Salzburg Center for Smart Materials, c/o Department of Chemistry and Physics of Materials, Paris Lodron University of Salzburg, Jakob-Haringer-Straße 2a, 5020 Salzburg, Austria
- Department of Material Sciences and Process Engineering, Institute of Physics and Materials Science, University of Natural Resources and Life Sciences, Peter-Jordan-Straße 82, 1190 Vienna, Austria
| | - Thomas Schnabel
- Department of Forest Products Technology & Timber Constructions, Salzburg University of Applied Sciences, Markt 136a, 5431 Kuchl, Austria
- Faculty of Furniture Design and Wood Engineering, Transilvania University of Brasov, B-dul. Eroilor nr. 29, 500036 Brasov, Romania
| | - Gertie Janneke Oostingh
- Biomedical Sciences, Salzburg University of Applied Sciences, Urstein Sued 1, 5412 Puch, Austria
| | - Anja Schuster
- Biomedical Sciences, Salzburg University of Applied Sciences, Urstein Sued 1, 5412 Puch, Austria
- Correspondence:
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Manninen M, Karonen M, Salminen JP. Chemotaxonomic Markers for the Leaf Buds of Common Finnish Trees and Shrubs: A Rapid UHPLC MS Fingerprinting Tool for Species Identification. Molecules 2022; 27:6810. [PMID: 36296401 PMCID: PMC9611062 DOI: 10.3390/molecules27206810] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 10/06/2022] [Accepted: 10/07/2022] [Indexed: 09/10/2023] Open
Abstract
In this study, a chemotaxonomic tool was created on the basis of ultra-high-performance liquid chromatography-mass spectrometry (UHPLC-MS) for the identification of 13 common Finnish deciduous trees and shrubs from their leaf bud metabolites. The bud extracts were screened with UHPLC-ESI-QqQ-MS and UHPLC-ESI-Q-Orbitrap-MS to discover suitable markers for each species. Two approaches were tested in the marker selection: (1) unique species-specific markers to obtain selective fingerprints per species and (2) major markers to maximise the sensitivity of the fingerprints. The markers were used to create two selected ion-recording-based fingerprinting tools with UHPLC-ESI-QqQ-MS. The methods were evaluated for their selectivity, repeatability, and robustness in plant species identification by analysing leaf buds from several replicates of each species. The created chemotaxonomic tools were shown to provide unique chromatographic profiles for the studied species in less than 6 min. A variety of plant metabolites, such as flavonoids, triterpenoids, and hydroxycinnamic acid derivatives, were found to serve as good chemotaxonomic markers for the studied species. In 10 out of 13 cases, species-specific markers were superior in creating selective and repeatable fingerprints.
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Affiliation(s)
| | - Maarit Karonen
- Natural Chemistry Research Group, Department of Chemistry, University of Turku, FI-20014 Turku, Finland
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Beszterda M, Frański R. Seasonal Qualitative Variations of Phenolic Content in the Stem Bark of
Prunus persica
var.
nucipersica
‐ Implication for the Use of the Bark as a Source of Bioactive Compounds. ChemistrySelect 2022. [DOI: 10.1002/slct.202200418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Monika Beszterda
- Poznań University of Life Sciences Department of Food Biochemistry and Analysis Mazowiecka 48 60-623 Poznań Poland
| | - Rafał Frański
- Faculty of Chemistry Adam Mickiewicz University Uniwersytetu Poznańskiego 8 61-614 Poznań Poland
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Agarwal C, Kóczán Z, Börcsök Z, Halász K, Pásztory Z. Valorization of Larix decidua Mill. bark by functionalizing bioextract onto chitosan films for sustainable active food packaging. Carbohydr Polym 2021; 271:118409. [PMID: 34364552 DOI: 10.1016/j.carbpol.2021.118409] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 07/01/2021] [Accepted: 07/03/2021] [Indexed: 11/20/2022]
Abstract
The present study explored the use of chitosan films functionalized with antioxidants extracted from Larix decidua Mill. bark for active packaging. The pristine chitosan and extract-incorporated chitosan films were evaluated for their structural, physico-mechanical, thermal, viscoelastic and antioxidant properties using advanced characterization techniques. The infrared spectroscopy revealed hydrogen bonding between the extract polyphenolic antioxidants and chitosan, whereas the surface microscopy studies indicated good compatibility between them. The addition of bark extract caused a significant increase in color parameters and solubility with reduction in swelling and elongation at break of the films. The thermal analysis indicated a drop in thermal stability of chitosan films modified with the extract. The dynamic mechanical analysis confirmed the extract-polymer interactions and the viscoelastic nature of the films. The incorporation of bark extract caused remarkable enhancement in the antioxidant activity of chitosan films. Overall, larch bark extract-functionalized chitosan films demonstrated promising potential for food packaging.
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Affiliation(s)
- Charu Agarwal
- Innovation Center, University of Sopron, Bajcsy-Zsilinszky E. str. 4, Sopron 9400, Hungary.
| | - Zsófia Kóczán
- Paper Research Institute, University of Sopron, Bajcsy-Zsilinszky E. str. 4, Sopron 9400, Hungary
| | - Zoltán Börcsök
- Innovation Center, University of Sopron, Bajcsy-Zsilinszky E. str. 4, Sopron 9400, Hungary
| | - Katalin Halász
- Paper Research Institute, University of Sopron, Bajcsy-Zsilinszky E. str. 4, Sopron 9400, Hungary
| | - Zoltán Pásztory
- Innovation Center, University of Sopron, Bajcsy-Zsilinszky E. str. 4, Sopron 9400, Hungary
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