Related Experiment Video
Updated: Jun 29, 2026
06:50
Extraction and Analysis of Taiwanese Green Propolis
Published on: January 7, 2019
Brazilian propolis: correlation between chemical composition and antimicrobial activity
Kelly Salomão1, Paulo Roberto S Pereira, Leila C Campos
1Departamento de Ultra-estrutura e Biologia Celular, Departamento de Bacteriologia, Departamento de Micologia, Departamento de Genética, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro and Pós-graduação em Farmácia, Núcleo de Pós-graduação, Pesquisa e Extensão, Universidade Bandeirante de São Paulo, São Paulo, Brazil.
Evidence-Based Complementary and Alternative Medicine : Ecam
|October 3, 2008
Summary
Brazilian propolis extracts show antimicrobial activity against various pathogens. Specific compounds like p-coumaric acid and caffeolyquinic acids are linked to the biological effects of these propolis samples.
Area of Science:
- Natural Products Chemistry
- Microbiology
- Pharmacology
Background:
- Brazilian propolis (EEPs) are complex natural products with diverse biological activities.
- Understanding the chemical constituents responsible for EEPs' efficacy is crucial for their application.
Purpose of the Study:
- To determine the chemical composition of Brazilian propolis extracts (EEPs) using HPLC.
- To evaluate the antimicrobial activity of EEPs against various pathogens.
- To correlate specific chemical compounds with observed biological effects.
Main Methods:
- High-Performance Liquid Chromatography (HPLC) for chemical analysis.
- In vitro antimicrobial assays against *Trypanosoma cruzi*, *Staphylococcus aureus*, *Streptococcus pneumoniae*, *Klebsiella pneumoniae*, *Candida albicans*, *Sporothrix schenckii*, and *Paracoccidioides brasiliensis*.
- Multiple regression analysis to correlate chemical composition with biological activity.
Main Results:
- Positive correlations were found between *S. aureus* inhibition and p-coumaric acid (PCUM) and DHCA1.
- Trypomastigotes of *T. cruzi* were inhibited by DHCA4 and DCBEN.
- Group A propolis showed associations between *S. aureus* and caffeic acid (CAF)/dicaffeoylquinic acid 3 (CAFQ3), *S. pneumoniae* and CAFQ3/monocaffeoylquinic acid 2 (CAFQ2), and *T. cruzi* and CAFQ3.
- Group B propolis showed higher activity against *S. pneumoniae* with DCBEN and *T. cruzi* with CAF.
- No significant associations were found for Group C propolis.
Conclusions:
- The study highlights the importance of p-coumaric acid derivatives, particularly prenylated ones, and caffeolyquinic acids in the biological activity of Brazilian propolis.
- Specific compounds contribute to the antimicrobial and antiparasitic effects of EEPs.
- Botanical origin influences the chemical composition and associated bioactivity of propolis.
Keywords:
Trypanosoma cruzibactericidal activitychemical compositionfungicidal activitypropolisstatistical analysisMore Related Videos
Related Concept Videos
01:28Antimicrobial Effectiveness
The effectiveness of antimicrobial agents depends on various factors influencing their ability to eliminate microbial populations. Larger microbial populations require more time for complete eradication, emphasizing the importance of population size analysis when evaluating antimicrobial efficacy.Microbial resistance to antimicrobial agents varies significantly. Highly resilient microorganisms include endospores, gram-negative bacteria, and non-enveloped viruses, while prions are exceptionally...
01:23Antimicrobial Proteins
Antimicrobial proteins are important components of the immune system. They aid the body in combating pathogens by either killing them directly or hindering their replication processes. Four main types of antimicrobial substances are interferons, the complement system, iron-binding proteins, and antimicrobial proteins.
Interferons
Interferons (IFNs) are proteins produced by lymphocytes, macrophages, and fibroblasts infected with viruses. While IFNs cannot prevent viruses from entering and...
Interferons
Interferons (IFNs) are proteins produced by lymphocytes, macrophages, and fibroblasts infected with viruses. While IFNs cannot prevent viruses from entering and...
01:21Antiprotozoal Agents
Leishmaniasis is a widespread parasitic disease caused by several Leishmania species. It affects millions of people each year and remains a major public health problem in endemic regions. First-line treatment relies on pentavalent antimonials, including meglumine antimoniate and sodium stibogluconate. Even so, how these drugs work has not been fully clear, especially their interaction with parasite-specific biochemical pathways. One key target is trypanothione reductase (TR), an enzyme that...
01:27Chemical Agents for Microbial Control
Chemicals play important roles in controlling microbial growth by targeting microbial structures and functions as sanitizers, antiseptics, disinfectants, and sterilants.Alcohols are commonly used sanitizers, effectively disrupting lipid membranes, which compromises cell integrity. They are also used as antiseptics and disinfectants due to their rapid action and versatility.Phenols and their derivatives phenolics , known for denaturing proteins and disrupting cell membranes, are particularly...