Ancient plant remains with special reference to buckthorn, Frangula alnus Mill., pyrenes from Dascyleum, Balıkesir, NW Turkey

Dönmez, Emel Oybak; Akyol, Ali Akın; Karadağ, Recep; Torgan, Emine; Iren, Kaan

doi:10.5586/asbp.3520

Cited by 4 publications

(1 citation statement)

References 16 publications

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“…is a raw herbal material that has been used in folk medicine for centuries [ 5 , 6 ]. Its abundance was discovered (among other medicinal plants) in the ruins of the ancient city of Dascyleum (Daskyleion) in the province of Baikesir in northwestern Turkey [ 7 ]. For at least several centuries until today, it has been a popular herbal resource in Europe, including British Islands [ 8 ], the Carpathian region [ 9 ], and the Balkan Peninsula [ 10 , 11 ].…”

Section: Introductionmentioning

confidence: 99%

Extracts from Frangula alnus Mill. and Their Effects on Environmental and Probiotic Bacteria

Kledecka

Siejak²,

Pratap-Singh³

et al. 2022

Plants

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The bark of Frangula alnus 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. Pseudomonas fluorescens ATCC 17400 was particularly sensitive to the action of extracts, whereas other strains of the Pseudomonas genus showed practically no adverse effects. Ethanolic extracts had the strongest effect on most of the selected bacteria strains. We found that the probiotic Lactobacillus 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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