Determination of Legionella pneumophila susceptibility to Melaleuca alternifolia Cheel (tea tree) oil by an improved broth micro-dilution method under vapour controlled conditions

Mondello, Francesca; Girolamo, Antonietta; Scaturro, Maria; Ricci, Maria Luisa

doi:10.1016/j.mimet.2009.02.012

Cited by 32 publications

(33 citation statements)

References 40 publications

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“…However, the present result disaccords with our previous finding that a greater collection of culturable L. pneumophila in DW than TM (Chang and Chou, 2011a;Chang et al, 2010). Different susceptibilities of bacteria to 0.01% of Tween 80 may be one of the explanations for this inconsistency as the literature shows Tween 80 should be limited to 0.001% to avoid its interference on Legionella growth (Mondello et al, 2009), whereas Tween 80 at ≥0.1% facilitates Staphylococcus growth and its enzyme activity (Gould et al, 2009;Prema et al, 2006).…”

Section: Discussioncontrasting

confidence: 58%

Methods for quantifyingStaphylococcus aureusin indoor air

Chang

Wang

2014

Indoor Air

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Staphylococcus aureus has been detected in indoor air and linked to human infection. Quantifying S. aureus by efficient sampling methods followed by appropriate sample storage treatments is essential to characterize the exposure risk of humans. This laboratory study evaluated the effects of sampler type (all-glass impinger (AGI-30), BioSampler, and Andersen one-stage sampler (Andersen 1-STG)), collection fluid (deionized water (DW), phosphate-buffered saline (PBS), and Tween mixture (TM)), and sampling time (3-60 min) on cell recovery. Effects of storage settings on bacterial concentration were also assessed over 48 h. Results showed BioSampler performed better than Andersen 1-STG and AGI-30 (P < 0.05) and TM was superior to PBS and DW (P < 0.05). An increase in sampling time negatively affected the recoveries of cells in PBS of BioSampler and AGI-30 (P < 0.05), whereas cell recoveries in TM were increased at sampling of 6-15 min compared with 3 min. Concentrations of cells collected in PBS were decreased with storage time at 4 and 23 °C (P < 0.05), while cells stored in TM showed stable concentrations at 4 °C (P > 0.05) and increased cell counts at 23 °C (P < 0.05). Overall, sampling by BioSampler with TM followed by sample transportation and storage at 4 °C is recommended.

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Section: Discussioncontrasting

confidence: 58%

Methods for quantifyingStaphylococcus aureusin indoor air

Chang

Wang

2014

Indoor Air

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“…Also, several studies have indicated that lemongrass in vapor phase is more effective than the liquid phase (Tyagi & Malik, 2010a, b). Recently, there have been studies that EOs in vapor phase are more effective than liquid phase including Eucalyptus globules (Inouye, Abe, Yamaguchi, & Asakura, 2003;Tyagi & Malik, 2011b), Mealaleuca alternifolia (Mondello, Girolamo, Scaturro, & Ricci., 2009), and thyme, fennel, and lavender EOs (Soylu, Soylu, & Kurt, 2006;Tullio et al, 2007). EOs in vapor phase could be highly effective against pathogens and Table 3 Change of CO 2 and O 2 composition on fresh cabbage and radish sprouts with modified atmosphere packaging (MAP) for storage 21 days at 4 ± 2 C.…”

Section: Pathogens Eosmentioning

confidence: 99%

Preservative effectiveness of essential oils in vapor phase combined with modified atmosphere packaging against spoilage bacteria on fresh cabbage

et al. 2015

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“…[163] One of these bacteriostatic EOs was isolated from M. alternifolia which comprised a high content of terpinen-4-ol (42.4%) and led to a remarkable growth inhibition by using MICs between 0.125 and 0.5% (v/v). [163] In a further study the potential use of Cinnamomum osmophloeum Kaneh (Lauraceae) EO whose lead molecule was by far cinnamaldehyde (91.3%) as water disinfectant was investigated. The EO turned out to have significant antimicrobial activity against L. pneumophila.…”

Section: Essential Oils As Water Disinfectantsmentioning

confidence: 99%

A review on recent research results (2008–2010) on essential oils as antimicrobials and antifungals. A review.

Lang

Buchbauer

2011

Flavour & Fragrance J

345

209

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The antimicrobial activity of essential oils is discussed in this review taking in account studies which were published in the period of time from 2008 until September 2010. Furthermore, the most important methods to examine the antimicrobial efficiency of essential oils are presented. The studies are divided into the following two groups, namely antibacterial and antifungal active agents depending on the activity of the applied essential oil against the test microorganisms. Various interesting possible applications are revealed such as the use of essential oils instead of synthetic drugs to circumvent the increasing resistance of some pathogens. Moreover, they could not only be used for the therapy of infectious illnesses, but also as preservatives in the food industry. A further possibility is, among others, the application of essential oils in skin products in order to treat or avoid dermal infections. Additionally, the prevalent constituents of the individual antimicrobial active essential oils are elaborated.

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Determination of Legionella pneumophila susceptibility to Melaleuca alternifolia Cheel (tea tree) oil by an improved broth micro-dilution method under vapour controlled conditions

Cited by 32 publications

References 40 publications

Methods for quantifyingStaphylococcus aureusin indoor air

Methods for quantifyingStaphylococcus aureusin indoor air

Preservative effectiveness of essential oils in vapor phase combined with modified atmosphere packaging against spoilage bacteria on fresh cabbage

A review on recent research results (2008–2010) on essential oils as antimicrobials and antifungals. A review.

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