Essential Oil Compositions and Antimicrobial Activity of the Leaves and Rhizomes of Alpinia calcicola from Vietnam

Hương, Lê Thị; Linh, Le Duy; Đài, Đỗ Ngọc; Ogunwande, Isiaka A.

doi:10.1007/s10600-022-03835-2

Cited by 6 publications

(4 citation statements)

References 14 publications

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Section: Introductionmentioning

confidence: 94%

“…6 In the same manner, the rhizome oil of Nghean, Vietnam, Alpinia calcicola containing the major compound β-pinene (15.3%) successfully inhibited three pathogenic bacteria Bacillus cereus, Enterococcus faecalis, and Staphylococcus aureus with a minimum inhibitory concentration value of less than 8.0 µg/mL. 7 Alpinia vietnamica H.Đ. Trâǹ, Luu & Škorničk was identified as a new species in 2019, which was widely distributed in Thua Thien Hue, Quang Nam, and Kon Tum, Vietnam.…”

Section: Introductionmentioning

confidence: 94%

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Essential Oils of Alpinia vietnamica Rhizomes and Leaves: Chemical Composition, Cytotoxicity, α-Glucosidase Inhibition, and Molecular Docking Approach

Tra,

Ha,

Tuyen

et al. 2023

Natural Product Communications

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Objective: Alpinia is a big genus of flowering plants in the family Zingiberaceae. The plants of this genus are generally aromatic due to their essential oils. The current study aims to identify chemical compositions in the rhizome and leaf oils of Alpinia vietnamica H.Đ. Trần, Luu & Škorničk. Methods: Essential oils of A vietnamica rhizomes and leaves obtained by hydrodistillation were investigated by the gas chromatography–flame ionization detection/mass spectrometry (GC–FID/MS) analysis. A vietnamica essential oils have been subjected to cytotoxic and α-glucosidase inhibitory assays. The protein interactions of the major compounds were viewed by molecular docking study. Results: In general, monoterpene hydrocarbons (60.4%-62.5%) and their oxygenated derivatives (18.1%-29.0%) were the main chemical classes of the rhizome and leaf oils. In the meantime, 1,8-cineole (25.7%-29.0%), β-pinene (12.8%-21.3%), geraniol (9.0%-15.2%), and α-pinene (6.1%-7.5%) can be seen as the main compounds. A vietnamica essential oils showed cytotoxicity toward four cancer cell lines KB, Hep-G2, Lu-1, and MCF-7 with IC50 values of 82.39 to 254.1 µg/mL. Significantly, the leaf oil (IC50 115.18 µg/mL) was better than the standard compound acarbose (IC50 156.68 µg/mL) in the α-glucosidase inhibitory assay. The results of molecular docking simulation suggested that 1,8-cineole, geraniol, α-pinene, and β-pinene could generate a similar inhibition (binding affinities) with acarbose, and the hydrogen and hydrophobic interactions played contributory roles in the binding to α-glucosidase enzyme. Conclusion: Further phytochemical investigations on this species, especially chromatographic separations to isolate bioactive metabolites, are needed. As well, pharmacological experiments are welcome since the current study is the first result.

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Section: Introductionmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 94%

Essential Oils of Alpinia vietnamica Rhizomes and Leaves: Chemical Composition, Cytotoxicity, α-Glucosidase Inhibition, and Molecular Docking Approach

Tra,

Ha,

Tuyen

et al. 2023

Natural Product Communications

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“…The amalgamation of herbal formulations with nanoparticles presents a potential avenue to amplify the antimicrobial potential of natural substances [ 13 ]. The synergy between bioactive compounds inherent to medicinal plants and the distinctive properties of nanoparticles may yield more potent antimicrobial agents.…”

Section: Introductionmentioning

confidence: 99%

Antimicrobial Activity of Zinc Oxide Nanoparticles Synthesized Using Ocimum Tenuiflorum and Ocimum Gratissimum Herbal Formulation Against Oral Pathogens

Varghese,

Shanmugam

2024

Cureus

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Background This study deals with the antimicrobial efficacy of zinc oxide nanoparticles (ZnONPs) synthesized through green methods employing extracts from Ocimum tenuiflorum and Ocimum gratissimum and assessed for their antimicrobial properties against a range of oral pathogens. Methods Zinc oxide nanoparticles (ZnONPs) were synthesized using extracts from Ocimum tenuiflorum and Ocimum gratissimum through a green synthesis approach. Antimicrobial activity was determined using the agar-well diffusion assay to evaluate the consistency of inhibition zones against oral pathogens. Variations in sensitivity were assessed through the time-kill curve assay, quantifying the response of oral pathogens to zinc oxide nanoparticles (ZnONPs) exposure over time. Results The agar-well diffusion assay revealed uniform 9-mm zones of inhibition against all oral pathogens, signifying consistent antimicrobial activity of zinc oxide nanoparticles (ZnONPs). In the time-kill curve assay, Candida albicans exhibited the highest sensitivity, followed by Streptococcus mutans and Staphylococcus aureus. Enterococcus faecalis and Lactobacillus species displayed lower sensitivity, suggesting potential selectivity. Discussion The observed variation in sensitivity implies the potential selectivity of zinc oxide nanoparticles (ZnONPs) against specific oral pathogens, which may have significant implications for oral health applications. These findings underscore the versatility of green-synthesized zinc oxide nanoparticles (ZnONPs) as promising antimicrobial agents, particularly for oral health applications. Conclusion This study provides promising results for the antimicrobial potential of zinc oxide nanoparticles (ZnONPs) synthesized using Ocimum tenuiflorum and Ocimum gratissimum . The consistent antimicrobial activity and variations in sensitivity among oral pathogens highlight their promising utility in oral health care.

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“…On the other hand, plant essential oils play an important role in controlling biological deterioration [ 2 ]. Essential oils which were extracted from a variety of spices, herbs, and plants showed antimicrobial activity against bacteria and fungus [ 3 , 4 , 5 , 6 , 7 ]. According to Ragina [ 8 ], white wormwood, rose-scented geranium, and bay laurel essential oils prevent Bacillus typhi murium and Escherichia coli .…”

Section: Introductionmentioning

confidence: 99%

Chemical Composition, Antimicrobial and Antioxidant Activity of Essential Oil from Allium tenuissimum L. Flowers

Zhao

2022

Foods

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Allium tenuissimum L. as a kind of food condiment in northern China, is popular among more and more consumers owning to its special flavor from the flower. However, its composition has not been widely studied. Hence, the aim of this study was to investigate the chemical composition and antimicrobial and antioxidant activity of essential oil from Allium tenuissimum L. flowers. Gas chromatography–mass spectrometry (GC-MS) was applied to detect the chemical composition. The antimicrobial activity against foodborne pathogens was evaluated by measuring the zones of inhibition (ZOI), the minimal inhibitory concentration (MIC), and the minimal bactericidal concentration (MBC). The antioxidant effect was tested by the scavenging capacity on DPPH, ABTS+•, and •OH. The results of GC-MS showed that 72 volatile components were isolated and the structures 68 of them were identified, which comprised about 91.92% of the total composition of the oil. Among these compounds, terpenoid compounds and sulfurous compounds had the highest contents, especially dimethyl trisulfide. Our investigation demonstrated that the essential oil has better antimicrobial efficiency to Staphylococcus aureus, Bacillus subtilis, Escherichia coli, Aspergillus flavus, and Saccharomyces cerevisiae. In addition, the essential oil had a strong stability to UV. Furthermore, the essential oil exhibited a high radical-scavenging effect on DPPH, ABTS+•, and •OH, which is significant for application in the food industry. In conclusion, the essential oil could be used as an inexpensive and natural antibacterial and antioxidant agent in food.

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Essential Oil Compositions and Antimicrobial Activity of the Leaves and Rhizomes of Alpinia calcicola from Vietnam

Cited by 6 publications

References 14 publications

Essential Oils of Alpinia vietnamica Rhizomes and Leaves: Chemical Composition, Cytotoxicity, α-Glucosidase Inhibition, and Molecular Docking Approach

Essential Oils of Alpinia vietnamica Rhizomes and Leaves: Chemical Composition, Cytotoxicity, α-Glucosidase Inhibition, and Molecular Docking Approach

Antimicrobial Activity of Zinc Oxide Nanoparticles Synthesized Using Ocimum Tenuiflorum and Ocimum Gratissimum Herbal Formulation Against Oral Pathogens

Chemical Composition, Antimicrobial and Antioxidant Activity of Essential Oil from Allium tenuissimum L. Flowers

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