» Articles » PMID: 39771273

Chemical Characterization and Antimicrobial Activity of Green Propolis from the Brazilian Caatinga Biome

Overview
Journal Plants (Basel)
Date 2025 Jan 8
PMID 39771273
Authors
Affiliations
Soon will be listed here.
Abstract

Green propolis, particularly from the unique flora of the Brazilian Caatinga biome, has gained significant interest due to its diverse chemical composition and biological activities. This study focuses on the chemical characterization and antimicrobial evaluation of Caatinga green propolis. Twelve compounds were isolated through different chromatographic techniques, including flavanones (naringenin, 7--methyleriodictyol, sakuranetin), flavones (hispidulin, cirsimaritin), flavonols (quercetin, quercetin-3-methyl ether, kaempferol, 6-methoxykaempferol, viscosine, penduletin), and one chalcone (kukulkanin B). Using liquid chromatography-quadrupole time-of-flight tandem mass spectrometry (LC-QToF-MS), a total of 55 compounds excluding reference standards were tentatively identified, which include flavonoids, phenolic acids derivatives, and alkaloids, with flavonols, flavanones, and flavones being predominant. Antimicrobial testing against pathogens revealed that the crude extract exhibited low inhibitory activity, against Gram-positive bacteria, including methicillin-resistant (MRSA) and vancomycin-resistant (VRE) (IC: 148.4 and 120.98 µg/mL, respectively). Although the isolated compounds showed limited individual activity, a fraction containing sakuranetin and penduletin (Fraction 8) exhibited moderated activity against (IC: 47.86 µg/mL), while a fraction containing quercetin and hispidulin showed moderated activity against VRE (IC: 16.99 µg/mL). These findings highlight the potential application of Caatinga green propolis as an antimicrobial agent, particularly against resistant bacterial strains, and underscore the importance of synergistic interactions between compounds in enhancing biological effects.

References
1.
Xavier J, Valentim I, Camatari F, de Almeida A, Goulart H, Ferro J . Polyphenol profile by UHPLC-MS/MS, anti-glycation, antioxidant and cytotoxic activities of several samples of propolis from the northeastern semi-arid region of Brazil. Pharm Biol. 2017; 55(1):1884-1893. PMC: 6131762. DOI: 10.1080/13880209.2017.1340962. View

2.
Aldana-Mejia J, Ccana-Ccapatinta G, Pena Ribeiro V, Arruda C, Veneziani R, Ambrosio S . A validated HPLC-UV method for the analysis of phenolic compounds in Brazilian red propolis and Dalbergia ecastaphyllum. J Pharm Biomed Anal. 2021; 198:114029. DOI: 10.1016/j.jpba.2021.114029. View

3.
Sartori A, Son N, Honorio M, Ripari N, Basso Santiago K, Gomes A . Effects of caatinga propolis from Mimosa tenuiflora and its constituents (santin, sakuranetin and kaempferide) on human immune cells. J Ethnopharmacol. 2023; 319(Pt 2):117297. DOI: 10.1016/j.jep.2023.117297. View

4.
Sousa R, Oliveira C, Sousa R, Leite L, Oliveira A, Ferreira J . Unraveling the metabolomic profile and acute toxicity of ethanolic extract from Mimosa tenuiflora (Willd.) Poir. root bark. Toxicon. 2024; 249:108076. DOI: 10.1016/j.toxicon.2024.108076. View

5.
Avula B, Sagi S, Masoodi M, Bae J, Wali A, Khan I . Quantification and Characterization of Phenolic Compounds from Northern Indian Propolis Extracts and Dietary Supplements. J AOAC Int. 2020; 103(5):1378-1393. DOI: 10.1093/jaoacint/qsaa032. View