Antimicrobial activity of some natural extracts encapsulated within silica matrices

Ocimum basilicum var. purpurascens leaves (red rubin basil): a source of bioactive compounds and natural pigments for the food industry

“…The hydroalcoholic extracts have a rich content of phenolic compounds, which have been described to show high antimicrobial activity. 39 The presence of rosmarinic acid as the major phenolic compound can probably explain the antimicrobial activity of red rubin basil. Previous studies have reported several biological properties of this phenolic acid, namely antibacterial activity.…”

Potential agrifood application of seriguela (Spondias purpurea L.) residues extract and nanoZnO as antimicrobial, antipathogenic and antivirulence agents

“…Figure 5 exhibited the positive results found for the antibacterial activity of the extract and nanoZnO, characterized by the presence of inhibition zone (highlighted with red circles e pointed by arrows of the same color). Researches about the antibacterial activity of natural extracts from plant sources has been intensifying over the past few years (Steiner et al, 2017) and many polyphenols showed activity against a broad spectrum of microorganisms (Pina-Pérez & Ferrús Pérez, 2018). Furthermore, ZnO nanoparticles also showed potential use as an antimicrobial agent (Duffy et al, 2018;Kanmani & Rhim, 2014).…”

“…In this perspective, natural extracts from different plant sources have received attention due to their antioxidant action (Poveda et al, 2018), but also to their antimicrobial activity against a broad spectrum such as fungi (Aspergillus niger), Grampositive bacteria (Staphylococcus aureus) and Gram-negative (Escherichia coli) (Steiner et al, 2017). The use of the active compounds, such as phenolics obtained from agroindustrial residues, comes up with great potential for technological application, especially due to the low cost (Haas et al, 2018;V.…”