Molecules, Vol. 23, Pages 1498: Phenolic and Nonpolar Fractions of Elaeagnus rhamnoides (L.) A. Nelson Extracts as Virulence Modulators —In Vitro Study on Bacteria, Fungi, and Epithelial Cells

Molecules, Vol. 23, Pages 1498: Phenolic and Nonpolar Fractions of Elaeagnus rhamnoides (L.) A. Nelson Extracts as Virulence Modulators—In Vitro Study on Bacteria, Fungi, and Epithelial Cells Molecules doi: 10.3390/molecules23071498 Authors: Barbara Różalska Beata Sadowska Jerzy Żuchowski Marzena Więckowska-Szakiel Aleksandra Budzyńska Urszula Wójcik Anna Stochmal Butanol extracts from leaves, twigs, and fruits of Elaeagnus rhamnoides (L.) A. Nelson (sea buckthorn, SBT) were fractionated into phenolic and nonpolar lipid components, the chemical composition of which was analyzed. Assuming that an effect on natural microbiota and host epithelial cells needs to be assessed, regardless of the purpose of using SBT formulations in vivo, the minimal inhibitory/biocidal/fungicidal concentrations (MICs/MBCs/MFCs) of the fractions and reference phytocompounds were screened, involving 17 species of Gram-positive and Gram-negative bacteria and Candida species. The MICs of SBT extracts were in the range of 0.25–2.0 mg∙mL−1. Since direct antimicrobial activity of the extracts was quite low and variable, the impact of subMIC on the important in vivo persistence properties of model microorganisms S. aureus and C. albicans was evaluated. Tests for adhesion and biofilm formation on an abiotic surface and on surfaces conditioned with fibrinogen, collagen, plasma, or artificial saliva showed the inhibitory activity of the fractions. The e...
Source: Molecules - Category: Chemistry Authors: Tags: Article Source Type: research