Journal
PLANTS-BASEL
Volume 11, Issue 11, Pages -Publisher
MDPI
DOI: 10.3390/plants11111487
Keywords
Zingiber officinale Roscoe; Elettaria cardamomum (L.) Maton; essential oil; chemical composition; antibacterial properties; antioxidant activity
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Funding
- Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia [PNURSP2022R141]
- King Saud University, Riyadh [RSP-2021/379]
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This study analyzed the essential oil composition of ginger and cardamom, identified numerous compounds, and tested their antibacterial activity against bacteria and yeast. Additionally, the antioxidant activity of the oils and extracts was evaluated.
The aim of this work was to study the chemical composition of the essential oil extracted from ginger rhizomes (Zingiber officinale Roscoe) and cardamom seeds (Elettaria cardamomum (L.) Maton). Using gas chromatography coupled with mass spectrometry (GC/MS), a total of 43 compounds were identified in ginger essential oil and 17 compounds in cardamom. The most abundant components, respectively, were zingiberene (22.18%) and 1.8-cineol (43.47%). Essential oils, methanol, ethanol and chloroform extracts for both plants were tested against nine bacteria and yeast. The highest sensitivity was noticed against Staphylococcus aureus with a 25 mm inhibition zone. The antioxidant potency of both oils and extracts were measured using DPPH (1,1-diphenyl-2-picryl hydrazyl) free radical scavenging and the ferric reducing power (FRP) method; the ethanolic extract of cardamom fruits exhibited the best results for both tests, with an IC 50 = 0.423 +/- 0.015 mg/mL and 95.03 +/- 0.076 FRP mg AAE/g.
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