Related Experiment Video
Updated: Jun 16, 2026

Quantification of Violacein in Chromobacterium violaceum and Its Inhibition by Bioactive Compounds
Published on: August 8, 2025
Antimicrobial activity of Inga fendleriana extracts and isolated flavonoids
Luisa Pistelli1, Alessandra Bertoli, Cecilia Noccioli
1Dipartimento di Scienze Farmaceutiche, Università di Pisa, Italy. luipi@farm.unipi.it
Abstract:
The EtOAc and n-BuOH extracts of Inga fendleriana inhibited Gram-positive, but not Gram-negative bacteria; a narrow spectrum of activity against Staphylococcus epidermidis was detected. The MIC values of the extracts ranged from 125 to 850 microg/mL. Quercetin 3-methylether, myricetin 3-O-rhamnoside and tricetin showed antibacterial activity against the same bacterial strains with MICs in the range from 31 to 250 microg/mL. In time-kill kinetic studies, the flavonoids showed bactericidal effects at the concentrations corresponding to four times the MICs.
Related Concept Videos
Antimicrobial Effectiveness
Antimicrobial Proteins
Interferons
Interferons (IFNs) are proteins produced by lymphocytes, macrophages, and fibroblasts infected with viruses. While IFNs cannot prevent viruses from entering and...
Antifungal Agents