A fresh look at manuka and kanuka essential oils from New Zealand

Maddocks, Wendy; Wilkinson, Jenny M.; Shillington, David; Cavanagh, Heather

doi:10.1016/j.ijat.2005.07.003

Cited by 22 publications

(18 citation statements)

References 16 publications

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“…As to manuka, the antimicrobial properties of its honey have been studied more than that of its EO (Mandal and Mandal, 2011 ). Generally, in our study we observed that the EO resulted to be much more active on Gram positive bacteria than on Gram negative, as reported also by Maddock-Jennings et al ( 2005 ); in addition, van Klink et al ( 2005 ), documented in particular the remarkable antimicrobial effect of EO major compounds, β- trichetones, on MRSA. Moreover, we recently found in another study (Fratini et al , 2017 ) very interesting MIC results for manuka EO, comparable to those obtained with our biofilm-forming S. aureus , on different S. aureus strains from milk (methicillin- susceptible and not biofilm-producing strains).…”

Section: Discussionsupporting

confidence: 89%

Antimicrobial activity of four essential oils against pigmenting Pseudomonas fluorescens and biofilmproducing Staphylococcus aureus of dairy origin

et al. 2017

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Essential oils (EOs) are mixtures of secondary metabolites of plant origin with many useful properties, among which the antimicrobial activity is also of interest for the food industry. EOs can exert their antimicrobial potential both directly, in food products and active packaging, and indirectly, as sanitizing and anti-biofilm agents of food facility surfaces. Aim of this research was to evaluate the antimicrobial activity of four EOs (bergamot, cinnamon, manuka and thyme) against Pseudomonas fluorescens and Staphylococcus aureus isolated from milk and dairy products. The chemical composition of EOs was evaluated by Gas Chromatography-Mass Spectrometry analysis. Minimum Inhibitory Concentration values were determined by a microplate method against 9 Ps. fluorescens from marketed mozzarella with blue discoloration defect, and 3 biofilm-producing S. aureus from milk. Reference ATCC strains were included. Pigment production activity by Ps. fluorescens was assessed both in culture and in cheese. EOs of manuka (leptospermone 23%) and thyme (carvacrol 30%, pcymene 20%, thymol 15%) showed the highest antimicrobial activity against S. aureus, MIC values were 0.012%-0.024% and 0.024% v/v, respectively; meanwhile EOs from thyme and cinnamon (cinnamaldehyde 55%) exhibited the best activity against Ps. fluorescens with MIC values of 0.098%-0.195% and 0.195%-0.391% v/v, respectively. The antimicrobial activity of these EOs is promising and they could be exploited in the dairy production chain.

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Section: Discussionsupporting

confidence: 89%

Antimicrobial activity of four essential oils against pigmenting Pseudomonas fluorescens and biofilmproducing Staphylococcus aureus of dairy origin

et al. 2017

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“…Manuka oil (MO) or Leptospermum scoparium oil or Manuka myrtle, is another essential oil with a long history of medicinal use in the community as a herbal medicine, particularly in New Zealand and Australia [ 106 , 107 , 108 ]. It is obtained from the leaves and seed capsules of Manuka tree ( Leptospermum scoparium ), an indigenous “tea-tree” native to eastern Australia and New Zealand.…”

Section: Potential Antimicrobial Candidates For Impetigomentioning

confidence: 99%

“…It is obtained from the leaves and seed capsules of Manuka tree ( Leptospermum scoparium ), an indigenous “tea-tree” native to eastern Australia and New Zealand. In New Zealand, various parts of the plant have been employed in Maori remedies for centuries, particularly as a skin antiseptic, an analgesic and wound dressing application—but the plant is most valued for its essential oil, i.e., MO [ 106 , 107 , 109 ]. MO is mainly composed of monoterpenes, sesquiterpenes, and triketones [ 110 , 111 ].…”

Section: Potential Antimicrobial Candidates For Impetigomentioning

confidence: 99%

Intolerable Burden of Impetigo in Endemic Settings: A Review of the Current State of Play and Future Directions for Alternative Treatments

2020

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Impetigo (school sores) is a common superficial bacterial skin infection affecting around 162 million children worldwide, with the highest burden in Australian Aboriginal children. While impetigo itself is treatable, if left untreated, it can lead to life-threatening conditions, such as chronic heart and kidney diseases. Topical antibiotics are often considered the treatment of choice for impetigo, but the clinical efficacy of these treatments is declining at an alarming rate due to the rapid emergence and spread of resistant bacteria. In remote settings in Australia, topical antibiotics are no longer used for impetigo due to the troubling rise of antimicrobial resistance, demanding the use of oral and injectable antibiotic therapies. However, widespread use of these agents not only contributes to existing resistance, but also associated with adverse consequences for individuals and communities. These underscore the urgent need to reinvigorate the antibiotic discovery and alternative impetigo therapies in these settings. This review discusses the current impetigo treatment challenges in endemic settings in Australia and explores potential alternative antimicrobial therapies. The goals are to promote intensified research programs to facilitate effective use of currently available treatments, as well as developing new alternatives for impetigo.

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“…étude était la petite dimension de l'échantillon. Bien que les résultats de cette étude de faisabilité soutiennent l'hypothèse que les volumes très petits de manuka et de kanuka utilisés en gargarisme peuvent fournir un effet positif sur le développement des mucosités induites par la radiation, davantage de recherches sont exigées pour confirmer cette conclusion [12,13].…”

Section: Activité Antibactérienneunclassified

“…Une enquête menée par le New Zealand Institute Crop & Food Research Limited [7] a étudié la préparation des HE de feuilles de manuka recueillies à divers endroits au sud de la Nouvelle-Zélande, révélant la présence de quatre chémotypes différents[3,13,15,16] : Les huiles de 36 plantes du cap Est de la Nouvelle-Zélande montrent un niveau similaire élevé de tricétones (plus de 20 %) avec une variabilité saisonnière[8].L'analyse des huiles provenant de 261 arbres de 87 sites de Nouvelle-Zélande a montré que le chémotype tricé-tone est localisé au cap Est. Un ensemble d'analyses révèle d'autres chémotypes localisés dans d'autres secteurs.…”

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Manuka, Leptospermum scoparium J.R. & G. Forst. (Myrtaceae)

Peytavi¹

2010

Phytothérapie

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A fresh look at manuka and kanuka essential oils from New Zealand

Cited by 22 publications

References 16 publications

Antimicrobial activity of four essential oils against pigmenting Pseudomonas fluorescens and biofilmproducing Staphylococcus aureus of dairy origin

Antimicrobial activity of four essential oils against pigmenting Pseudomonas fluorescens and biofilmproducing Staphylococcus aureus of dairy origin

Intolerable Burden of Impetigo in Endemic Settings: A Review of the Current State of Play and Future Directions for Alternative Treatments

Manuka, Leptospermum scoparium J.R. & G. Forst. (Myrtaceae)

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