Antimicrobial activity of aqueous and ethanolic extracts of Zingiber officinale Roscoe
DOI:
https://doi.org/10.55892/jrg.v8i18.2291Keywords:
antimicrobial activity; bacteria; extracts; rhizome; Zingiber officinale Roscoe.Abstract
The use of plants for therapeutic purposes is an ancient practice, currently supported by numerous scientific studies. Among these plants, ginger (Zingiber officinale Roscoe) stands out for its rhizomes, which are rich in bioactive compounds with antibacterial, anti-inflammatory, antioxidant, and antitumor properties. Considering the growing resistance of microorganisms to conventional antimicrobials, this study aimed to evaluate the antimicrobial activity of aqueous and ethanolic extracts of Z. officinale against Staphylococcus aureus (ATCC 6538) and Escherichia coli (ATCC 8739). The rhizomes were purchased from a local market in Toledo (PR, Brazil) and subjected to decoction, infusion, and ethanol-based extraction. The concentrations tested were 200 and 400 mg/mL. The ethanolic extract showed inhibition zones of 10.3 mm and 14 mm against S. aureus, and 8.1 mm against E. coli, at a concentration of 200 mg/mL. The aqueous extract obtained by decoction showed inhibition zones of 9.3 mm and 9 mm against S. aureus, while the 30-minute infusion produced an 8 mm zone. The results indicate that ginger has antimicrobial potential, especially against S. aureus, and may represent a promising alternative in the fight against bacterial resistance.
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References
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