Evaluation of the antibacterial effects of essential oil from the leaves of Laurus nobilis L. in Kerman Province

Moghtader, M.; Farahmand, A

doi:10.5897/jma2012.0233

Cited by 10 publications

(6 citation statements)

References 14 publications

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“…Overall, the results from this study are in line with previous literature reports [13,39,40,41]. Laurel EO has shown significant antibacterial properties and greater effectiveness against some microorganisms than tetracycline antibiotics [39]. Our results are in good agreement with the ones reported by Caputo et al [11].…”

Section: Discussionsupporting

confidence: 93%

Chemical Composition and Antimicrobial Activity of Laurus nobilis L. Essential Oils from Bulgaria

Fidan

Stefanova²,

Kostova³

et al. 2019

Molecules

117

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Laurel, Laurus nobilis L. is an evergreen plant belonging to the Lauraceae family, native to Southern Europe and the Mediterranean area. This is the first report on the composition and bioactivity of laurel essential oil (EO) from Bulgaria. The oil yield was 0.78%, 0.80%, and 3.25% in the fruits, twigs, and leaves, respectively. The main constituents in the fruit EO were 1,8-cineole (33.3%), α-terpinyl acetate (10.3%), α-pinene (11.0%), β-elemene (7.5%), sabinene (6.3%), β-phellandrene (5.2%), bornyl acetate (4.4%), and camphene (4.3%); those in the twig EO were 1,8-cineole (48.5%), α-terpinyl acetate (13.1%), methyl eugenol (6.6%), β-linalool (3.8%), β-pinene (3.4%), sabinene (3.3%) and terpinene-4-ol (3.3%); and the ones in the leaf EO were 1,8-cineole (41.0%), α-terpinyl acetate (14.4%), sabinene (8.8%), methyl eugenole (6.0%), β-linalool (4.9%), and α-terpineol (3.1%). The antibacterial and antifungal properties of laurel EOs were examined according to the agar well diffusion method. The leaf EO showed antibacterial and antifungal activities against almost all strains of the microorganisms tested, whereas the twig EO was only able to inhibit Staphylococcus aureus. Pseudomonas aeruginosa АТСС 9027 and Escherichia coli ATCC 8739 were the bacterial strains that showed the highest resistance to the laurel EO. The results can benefit the EO industry and biopesticide development.

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Section: Discussionsupporting

confidence: 93%

Chemical Composition and Antimicrobial Activity of Laurus nobilis L. Essential Oils from Bulgaria

Fidan

Stefanova²,

Kostova³

et al. 2019

Molecules

117

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“…The use of laurel in foods is nowadays diffused and its particularly odorous leaves and berries are added to various dish preparations. In previous studies, the chemical composition of liquid phase L. nobilis EO was investigated and 1,8-cineole, α-terpinyl acetate, α-pinene and α-terpineol resulted among the main components [ 10 , 11 , 12 ]. During time laurel gained a considerable importance in traditional medicine [ 13 ] and its leaf extracts or EO were used as gastroprotective and antidiarrheal [ 14 , 15 ], analgesic and anti-inflammatory [ 16 ], as antidiabetic and to decrease the risk factors of cardiovascular diseases [ 17 , 18 ].…”

Section: Introductionmentioning

confidence: 99%

Laurus nobilis, Salvia sclarea and Salvia officinalis Essential Oils and Hydrolates: Evaluation of Liquid and Vapor Phase Chemical Composition and Biological Activities

Ovidi

Masci

Zambelli

et al. 2021

Plants

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Laurus nobilis, Salvia officinalis and Salvia sclarea essential oils (EOs) and hydrolates (HYs) were investigated to define their chemical compositions and biological properties. Gas-chromatography/Mass-spectrometry (GC/MS) and Headspace-GC/MS (HS-GC/MS) techniques were used to characterize the liquid and vapor phase chemical composition of EOs and HYs. 1,8-Cineole (42.2%, 33.5%) and α-pinene (16.7%, 39.0%) were the main compounds of L. nobilis EO; 1,8-cineole (30.3%, 48.4%) and camphor (17.1%, 8.7%) were for S. officinalis EO; linalyl acetate (62.6%, 30.1%) and linalool (11.1%, 28.9%) were for S. sclarea EO for the liquid and vapor phase, respectively. Chemical profile of HYs was characterized by 1,8-cineole (65.1%, 61.4%) as a main constituent of L. nobilis and S. officinalis HYs, while linalool (89.5%) was the main constituent of S. sclarea HY. The antioxidant activity of EOs and HYs was carried out by DPPH and ABTS assays and antimicrobial properties were also investigated by microdilution and the disc diffusion method for liquid and vapor phase against five different bacterial strains such as Escherichia coli ATCC 25922, Pseudomonas fluorescens ATCC 13525 and Acinetobacter bohemicus DSM 102855 among Gram-negative and Bacillus cereus ATCC 10876 and Kocuria marina DSM 16420 among Gram-positive. L. nobilis and S. officinalis EOs demonstrated considerable antibacterial activity, while S. sclarea EO proved to be less effective. Agar diffusion method and vapor phase test showed the EOs activity with the biggest halo inhibition diameters against A. bohemicus and B. cereus. A remarkably high antioxidant activity was determined for L. nobilis showing low EC50 values and also for S. sclarea; good EO results were obtained in both of the used assays. S. officinalis EC50 values were slightly higher to which corresponds to a lower antioxidant activity. Concerning the HYs, the EC50 values for L. nobilis, S. officinalis and S. sclarea were remarkably high corresponding to an extremely low antioxidant activity, as also obtained by expressing the values in Trolox equivalent antioxidant capacity (TEAC).

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“…The EOs of L. nobilis growing in diff erent countries have been reported to display antibacterial activity. Moghtader and Farahmand (2013) and Ouibrahim et al (2013) noted antibacterial activity of laurel EO (by the Disc diff usion assay) against E. coli. In our screening, we noticed a rather small inhibitory activity of laurel EO towards S. aureus.…”

Section: Antibacterial Properties Of Laurel Eomentioning

confidence: 99%

“…The main chemical classes of volatiles in L. nobilis EO are oxygenated monoterpenes, monoterpene hydrocarbons, phenylpropanoids, sesquiterpene hydrocarbons and oxygenated sesquiterpenes (Pino et al, 1993). The metabolite 1.8-cineole was reported as the major component in the EO of laurel plants from Argentina (Huergo et al, 1978), Tunisia (Bouzouita et al, 2001), Turkey (Kilic et al, 2005), Croatia-Serbia (Politeo et al, 2007), Italy (Flamini et al, 2007) and Iran (Moghtader and Farahmand, 2013). The spicy aroma of leaves is attributed to benzene compounds (eugenol, methyl eugenol, and elemicin) present in percentages ranging between 1% and 12% (Pino et al, 1993).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the antibacterial activity of essential oil of Laurus nobilis against Pseudomonas syringae pv. phaseolicola and potential biocidal action

Mamoucha

Prombona

Galeou

2023

Hellenic Plant Protection Journal

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Summary With a continuously growing human population on our planet, the chemical burden of our environment is also growing. In addition, the resistance of microorganisms, like bacteria, to widely used chemicals is evident. Therefore, the application of bactericidal products that reduce the risks for development of resistance as well as the environment and human safety is of great benefit. In this work, we have screened the essential oil extracted from plants of Laurus nobilis L. (laurel) grown at the base of the Greek mountain Olympus for its antimicrobial activity against two strains of the Phaseolus vulgaris pathogen, Pseudomonas syringae pv. phaseolicola as well as human pathogenic bacteria (biocidal use). Our results, obtained with established methods, like Well diffusion and Disc diffusion assay, reveal that laurel essential oil is a very effective bacteriostatic and bactericidal agent. Importantly, the activity of laurel essential oil as growth inhibitor of the plant pathogen Pseudomonas syringae pv. phaseolicola is reported for the first time. This opens the field for more extended investigations regarding its use in crop protection. Additionally, the laurel essential oil tested showed significant antibacterial properties against several human pathogenic bacteria, namely Micrococcus luteus, Escherichia coli, Staphylococcus aureus and Bacillus subtilis.

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Evaluation of the antibacterial effects of essential oil from the leaves of Laurus nobilis L. in Kerman Province

Cited by 10 publications

References 14 publications

Chemical Composition and Antimicrobial Activity of Laurus nobilis L. Essential Oils from Bulgaria

Chemical Composition and Antimicrobial Activity of Laurus nobilis L. Essential Oils from Bulgaria

Laurus nobilis, Salvia sclarea and Salvia officinalis Essential Oils and Hydrolates: Evaluation of Liquid and Vapor Phase Chemical Composition and Biological Activities

Evaluation of the antibacterial activity of essential oil of Laurus nobilis against Pseudomonas syringae pv. phaseolicola and potential biocidal action

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