Extracts from <i>Frangula alnus</i> Mill. and Their Effects on Environmental and Probiotic Bacteria

The bark of <i>Frangula alnus</i> Mill (FAM), the so-called alder buckthorn, has been widely investigated for its medicinal properties, especially its laxative effects and the bioactive properties of the plant material extract. Still, there is no wider study devoted to its antibacterial...

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Main Authors: Agata Kledecka, Przemysław Siejak, Anubhav Pratap-Singh, Przemysław Łukasz Kowalczewski, Farahnaz Fathordoobady, Maciej Jarzębski, Wojciech Smułek
Format: Article
Language:English
Published: MDPI AG 2022-10-01
Series:Plants
Subjects:
Online Access:https://www.mdpi.com/2223-7747/11/20/2719
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author Agata Kledecka
Przemysław Siejak
Anubhav Pratap-Singh
Przemysław Łukasz Kowalczewski
Farahnaz Fathordoobady
Maciej Jarzębski
Wojciech Smułek
author_facet Agata Kledecka
Przemysław Siejak
Anubhav Pratap-Singh
Przemysław Łukasz Kowalczewski
Farahnaz Fathordoobady
Maciej Jarzębski
Wojciech Smułek
author_sort Agata Kledecka
collection DOAJ
description The bark of <i>Frangula alnus</i> Mill (FAM), the so-called alder buckthorn, has been widely investigated for its medicinal properties, especially its laxative effects and the bioactive properties of the plant material extract. Still, there is no wider study devoted to its antibacterial properties. This is important in the context of its impact on probiotic gut bacteria. The aim of the research was to recognize the effect of FAM extract on bacterial cells, and to determine how the bioactive properties and composition of the extract are influenced by the type of solvent used for the extraction. To find the most suitable conditions for the FAM extraction, we used four solvent solutions with different polarities, including water, methanol, ethanol, and isopropanol. We assessed the quality and composition of the extracts with spectral analysis, using spectrophotometric (FTIR, UV-Vis) and chromatographic methods (GC-MS). Finally, we analyzed the extractant impact of the extracts on the selected bacterial cells. The results showed that the chemical diversity of the extracts increased with the increase in solvent polarity, in which the abundance of frangulin, the main bioactive compound in buckthorn bark, was confirmed. <i>Pseudomonas fluorescens</i> ATCC 17400 was particularly sensitive to the action of extracts, whereas other strains of the <i>Pseudomonas</i> genus showed practically no adverse effects. Ethanolic extracts had the strongest effect on most of the selected bacteria strains. We found that the probiotic <i>Lactobacillus</i> strain, which represents intestinal microflora, has no direct effect on probiotic microorganisms. The research shown FAM extracts can be safe for probiotic bacteria present in human gut microflora. Moreover, the study indicated that contact with the extracts may reduce the total permeability of the bacterial membranes. This opens up the possibility of using FAM extracts as a factor regulating transport into cells, which may be used to support the action of other bioactive substances.
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spelling doaj.art-27e2ca27e67246bb9ec2d44a82b11f8d2023-11-24T02:04:11ZengMDPI AGPlants2223-77472022-10-011120271910.3390/plants11202719Extracts from <i>Frangula alnus</i> Mill. and Their Effects on Environmental and Probiotic BacteriaAgata Kledecka0Przemysław Siejak1Anubhav Pratap-Singh2Przemysław Łukasz Kowalczewski3Farahnaz Fathordoobady4Maciej Jarzębski5Wojciech Smułek6Institute of Chemical Technology and Engineering, Poznan University of Technology, 4 Berdychowo Str., 60-965 Poznań, PolandDepartment of Physics and Biophysics, Poznań University of Life Sciences, 38/42 Wojska Polskiego Str., 60-637 Poznań, PolandFood Nutrition and Health Program, The University of British Columbia, 2205 East Mall, Vancouver, BC V6T 1Z4, CanadaDepartment of Food Technology of Plant Origin, Poznań University of Life Sciences, 31 Wojska Polskiego Str., 60-637 Poznań, PolandFood Nutrition and Health Program, The University of British Columbia, 2205 East Mall, Vancouver, BC V6T 1Z4, CanadaDepartment of Physics and Biophysics, Poznań University of Life Sciences, 38/42 Wojska Polskiego Str., 60-637 Poznań, PolandInstitute of Chemical Technology and Engineering, Poznan University of Technology, 4 Berdychowo Str., 60-965 Poznań, PolandThe bark of <i>Frangula alnus</i> Mill (FAM), the so-called alder buckthorn, has been widely investigated for its medicinal properties, especially its laxative effects and the bioactive properties of the plant material extract. Still, there is no wider study devoted to its antibacterial properties. This is important in the context of its impact on probiotic gut bacteria. The aim of the research was to recognize the effect of FAM extract on bacterial cells, and to determine how the bioactive properties and composition of the extract are influenced by the type of solvent used for the extraction. To find the most suitable conditions for the FAM extraction, we used four solvent solutions with different polarities, including water, methanol, ethanol, and isopropanol. We assessed the quality and composition of the extracts with spectral analysis, using spectrophotometric (FTIR, UV-Vis) and chromatographic methods (GC-MS). Finally, we analyzed the extractant impact of the extracts on the selected bacterial cells. The results showed that the chemical diversity of the extracts increased with the increase in solvent polarity, in which the abundance of frangulin, the main bioactive compound in buckthorn bark, was confirmed. <i>Pseudomonas fluorescens</i> ATCC 17400 was particularly sensitive to the action of extracts, whereas other strains of the <i>Pseudomonas</i> genus showed practically no adverse effects. Ethanolic extracts had the strongest effect on most of the selected bacteria strains. We found that the probiotic <i>Lactobacillus</i> strain, which represents intestinal microflora, has no direct effect on probiotic microorganisms. The research shown FAM extracts can be safe for probiotic bacteria present in human gut microflora. Moreover, the study indicated that contact with the extracts may reduce the total permeability of the bacterial membranes. This opens up the possibility of using FAM extracts as a factor regulating transport into cells, which may be used to support the action of other bioactive substances.https://www.mdpi.com/2223-7747/11/20/2719anthraquinonesfrangulinbuckthornbiomembranepermeability
spellingShingle Agata Kledecka
Przemysław Siejak
Anubhav Pratap-Singh
Przemysław Łukasz Kowalczewski
Farahnaz Fathordoobady
Maciej Jarzębski
Wojciech Smułek
Extracts from <i>Frangula alnus</i> Mill. and Their Effects on Environmental and Probiotic Bacteria
Plants
anthraquinones
frangulin
buckthorn
biomembrane
permeability
title Extracts from <i>Frangula alnus</i> Mill. and Their Effects on Environmental and Probiotic Bacteria
title_full Extracts from <i>Frangula alnus</i> Mill. and Their Effects on Environmental and Probiotic Bacteria
title_fullStr Extracts from <i>Frangula alnus</i> Mill. and Their Effects on Environmental and Probiotic Bacteria
title_full_unstemmed Extracts from <i>Frangula alnus</i> Mill. and Their Effects on Environmental and Probiotic Bacteria
title_short Extracts from <i>Frangula alnus</i> Mill. and Their Effects on Environmental and Probiotic Bacteria
title_sort extracts from i frangula alnus i mill and their effects on environmental and probiotic bacteria
topic anthraquinones
frangulin
buckthorn
biomembrane
permeability
url https://www.mdpi.com/2223-7747/11/20/2719
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