Phytochemistry of the essential oil of Melissa officinalis L. growing wild in Morocco: Preventive approach against nosocomial infections

Jalal, Zineb; Atki, Yassine El; Lyoussi, Badiâa; Abdellaoui, Abdelfattah

doi:10.1016/j.apjtb.2015.03.003

Cited by 49 publications

(30 citation statements)

References 17 publications

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“…These results are in agreement with previous studies 10 . The essential oil extracted from different aromatic plants has an antibacterial power 23,24 . The essential oil of the Lebanese laurel shows antibacterial activity against the tested bacteria 9 .…”

Section: Resultsmentioning

confidence: 99%

“…While Grampositive bacteria included only Staphylococcus aureus (S. aureus). For the bacterial susceptibility screening test, we used the agar-disc diffusion method as mentioned earlier 23,24 . Each microorganism stock was suspended in Mueller-Hinton (MH) broth and then incubated at 37 °C for 18-24 h. The overnight cultures were diluted and adjusted to get a density of 100 CFU/ml (0.5 McFarland turbidity standards).…”

Section: Identification Of Essential Oil Constituents By Gas Chromatomentioning

confidence: 99%

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2019

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Bacterial resistance and oxidative stress are an important etiology of chronic diseases. This is the reason why new alternatives were established to overcome the incidence of some pathologies. Thus, the present study was aimed to evaluate the antibacterial activity of the extracted oil against bacteria that causes nosocomial infections in neonatal intensive care by using disc diffusion method. The antioxidant activity was evaluated using various methods (1,1-diphenyl-2picrylhydrazyl (DPPH) radical scavenging, reducing power assay, total antioxidant activity) and the content of total phenolic and flavonoids were determined. In the essential oil, the twenty-eight compound was identified by GC/MS analysis. The major components were: 1,8-cineol (26.76%), 1-α-pinene (8.63%), linalool (7.78%). The oil strongly reduced the DPPH radical (IC 50 = 4. 4 µg/ml) and reducing of molybdate (0.53 ± 0.0027 mg Eq ascorbic acid/µg EO. The oil showed strong antibacterial activity against nosocomial bacteria tested. This study confirms the essential oil of laurus nobilis. L processes antibacterial and antioxidant properties in-vitro.

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Section: Resultsmentioning

confidence: 99%

Section: Identification Of Essential Oil Constituents By Gas Chromatomentioning

confidence: 99%

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2019

IJPSR

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“…Chae et al (2014) showed carvacrol (54.1%), g-terpinene (18.5%) and a-terpinene (1.94%) were the main components of M. officinalis essential oil while in the present study, volume of carvacrol, g-terpinene and a-terpinene were 31.36%, 47.88% and 5.20%, respectively. In the study of Jalal et al (2015), thirty three components were identified representing 89.30% of the total oil composition and citronellal (14.4%), Jemaa et al, 2012;Khanavi et al, 2013;Sefidkon et al, 2007). There were many studies indicated the susceptibility of T. castaneum to plant essential oils (Khan et al, 2015;Kim et al, 2010;Sahaf et al, 2007;Suthisut et al, 2011) but the insecticidal effects of M. officinalis essential oil including lethal and sublethal activities have been estimated in some recent works; high toxicity of M. officinalis essential oil against third instar larvae of Spodoptera littoralis has been approved in the study of Pavela (2005).…”

Section: Discussionmentioning

confidence: 98%

“…The leaves comprise 0.05-0.15% essential oil in fresh material and 0.1-0.45% in dry material (Duda et al, 2015). The essential oil of M. officinalis is a famous antibacterial, antifungal, antiviral and antioxidant agent (Allahverdiyev et al, 2004;Jalal et al, 2015;Mimica-Dukic et al, 2004). It was found that M. officinalis essential oil has good potential for the treatment of diabetic neuropathy and Alzheimer's disease (Chaiyana & Okonogi, 2012;Hasanein & Riahi, 2015).…”

Section: Introductionmentioning

confidence: 99%

Phytochemistry, toxicity and feeding inhibitory activity ofMelissa officinalisL. essential oil against a cosmopolitan insect pest;Tribolium castaneumHerbst

2016

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Tribolium castaneum considered as an economically worldwide insect pest for agricultural and medicinal aspects. Synthetic chemicals have been used in the management of T. castaneum but their residual problems have been renovated the interest in ecofriendly safe materials such as plant essential oils. In the present study, toxicity and antifeedant effects of an essential oil from Melissa officinalis as well-known medicinal plant investigated against T. castaneum. Chemical analysis indicated g-terpinene, carvacrol and a-terpinene were the main components of essential oil. The essential oil showed strong toxicity on T. castaneum adults at several concentrations and treatment times. The LC 50 values were assessed as 19.418, 18.418 and 16.159 ml/l air after 24, 48 and 72 h exposure time, respectively. Sub-lethal concentrations of essential oil caused significant dose-dependent antifeedant activity. Results indicate M. officinalis essential oil can be suggested as a potential alternative to harmful synthetic chemicals.

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“…The lemon balm (Melissa officinalis, Lamiaceae), is native to Southern Europe and the Mediterranean region. It's has many beneficial effects such as anti-bacterial, sedative, anxiety reduction and gastrointestinal treatment [24,25].…”

Section: Introductionmentioning

confidence: 99%