Chemical Characterization and Antimicrobial Activity of Green Propolis from the Brazilian Caatinga Biome
Author Information
Author(s): Aldana-Mejía Jennyfer A., Ribeiro Victor Pena, Katragunta Kumar, Avula Bharathi, Tatapudi Kiran Kumar, Bastos Jairo Kenupp, Khan Ikhlas A., Meepagala Kumudini, Ross Samir A.
Primary Institution: National Center for Natural Products Research, School of Pharmacy, University of Mississippi
Hypothesis
The study aims to characterize the chemical constituents of Brazilian green propolis and assess its antimicrobial activity.
Conclusion
The study found that while individual flavonoids showed limited antimicrobial activity, the fractions derived from propolis demonstrated significant inhibitory effects against drug-resistant pathogens.
Supporting Evidence
- The study identified a rich presence of flavonoids and phenolic acids in the green propolis.
- Propolis extract showed moderate activity against C. neoformans, MRSA, and VRE.
- Fraction 14 displayed significant antimicrobial activity with a MIC of 16.99 µg/mL against VRE.
- Individual flavonoids were less effective than the total extract of propolis.
- Synergistic interactions between compounds may enhance biological effects.
Takeaway
This study looks at a special type of bee glue called green propolis from Brazil, which has some good stuff in it that might help fight germs, especially the tough ones that don't respond to regular medicine.
Methodology
The study used liquid chromatography–quadrupole time-of-flight tandem mass spectrometry (LC-QToF-MS) for chemical analysis and tested antimicrobial activity against various pathogens.
Limitations
Individual compounds exhibited minimum inhibitory concentrations greater than 20 µg/mL for all tested strains, indicating limited antimicrobial activity at the concentrations tested.
Digital Object Identifier (DOI)
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