Inhibition of the Growth of a Panel of Pathogenic Bacteria by Kunzea flavescens C.T.White and W.D.Francis Solvent Extractions

Chikowe, Getmore Rumbudzai; Mpala, Lindiwe Nomathemba; Cock, Ian Edwin

doi:10.5530/pc.2017.3.18

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“…These species have each been reported to inhibit bacterial growth. 7,26,[32][33][34] However, most studies have tested Kunzea spp. solvent extracts and only a few have screened essential oils against human pathogens.…”

Section: Introductionmentioning

confidence: 99%

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Kunzea ambigua (Sm.) Druce and Kunzea flavescens C.T. White and W.D. Francis Essential Oils Inhibit the Growth of Some Bacterial Triggers of Inflammatory Diseases

Barillot¹,

Cock²

2021

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Introduction: Kunzea ambigua (Sm.) Druce and Kunzea flavescens C.T. White and W.D. Francis are endemic Australian plants. Decoctions, infusions and essential oils produced from the leaves were used traditionally to treat a variety of bacterial diseases. Despite this, these species have not been rigorously examined for antibacterial properties against many pathogens. Methods: The antimicrobial activity of K. ambigua and K. flavescens essential oils and a K. ambigua hydrosol was investigated by disc diffusion and liquid dilution MIC assays against a panel of pathogenic bacteria. Toxicity was determined using the Artemia franciscana nauplii bioassay. Results: K. ambigua and K. flavescens essential oils displayed noteworthy growth inhibitory activity against A. baylyi, K. pneumonia, P. mirabilis and P. aeruginosa (MIC values substantially <1000μg/mL). Indeed, MIC values as low as 33μg/mL were noted against P. aeruginosa. Noteworthy growth inhibitory activity was also noted for the K. ambigua hydrosol against A. baylyi and P. aeruginosa. All extracts were determined to be non-toxic in the Artemia franciscana nauplii bioassay, indicating their safety for internal use as well as for topical uses. Conclusion: The lack of toxicity of the Kunzea spp. extracts and their growth inhibitory bioactivity against a panel of pathogenic bacteria partially validate the traditional usage of these species to treat bacterial diseases and indicate their potential in the development of antiseptic agents.

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Section: Introductionmentioning

confidence: 99%

“…solvent extracts and only a few have screened essential oils against human pathogens. [32][33][34] Several interesting phytochemical components have been identified in Kunzea spp. extracts and essential oils.…”

Section: Introductionmentioning

confidence: 99%

Kunzea ambigua (Sm.) Druce and Kunzea flavescens C.T. White and W.D. Francis Essential Oils Inhibit the Growth of Some Bacterial Triggers of Inflammatory Diseases

Barillot¹,

Cock²

2021

Self Cite

View full text Add to dashboard Cite

show abstract

Inhibition of the Growth of a Panel of Pathogenic Bacteria by Kunzea flavescens C.T.White and W.D.Francis Solvent Extractions

Cited by 1 publication

References 28 publications

Kunzea ambigua (Sm.) Druce and Kunzea flavescens C.T. White and W.D. Francis Essential Oils Inhibit the Growth of Some Bacterial Triggers of Inflammatory Diseases

Kunzea ambigua (Sm.) Druce and Kunzea flavescens C.T. White and W.D. Francis Essential Oils Inhibit the Growth of Some Bacterial Triggers of Inflammatory Diseases

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