Antibacterial potential assessment of jasmine essential oil against <i> E. coli</i>

Abstract

The antibacterial activity of Jasmine (Jasminum sambac L.) flower hydro steam distilled essential oil, synthetic blends and six major individual components was assessed against Escherichia coli (MTCC-443) strain. The activity was bactericidal. Minimum inhibitory concentration was determined by tube dilution technique, and the Minimum inhibitory concentration ranged between 1.9-31.25 μl/ml. Phenolcoefficient of the oil, synthetic blends and components varied between 0.6-1.7. The activity of the chemicals was possibly due to the inhibition of cell membrane synthesis.

Seasonal Variation of the Chemical Composition and Antimicrobial and Cytotoxic Activities of the Essential Oils from Inga laurina (Sw.) Willd.

“…The results obtained for essential oils of the dry season may be due to the presence of (Z)-hex-3-en-1-ol (14.23%) (15) in the leaves and linalool (5.17%) (2) and phytol (9.76%) (1) in the bark. Furthermore, in these essential oils, there was the presence of methyl salicylate (14), geraniol (4) and γ-eudesmol (5), which have antimicrobial properties when present in essential oils according to the literature [46][47][48].…”

Chemistry and Bioactivity of Essential Oils

“…Methyl anthranilate is found in a variety of citrus oils, including lemon and mandarin oils [106], jasmine oil [107], and in the essential oil derived from the flowers of Murraya exotica L. (Rutaceae) [108]. Methyl N-methyl anthranilate is found in mandarin oil [106,109] as well as oils from ylang-ylang [110] and the seeds of Nigella damascena and N. sativa [111].…”

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

“…Microdilution broth test [43] E. aerogenes, E. coli, L. monocytogenes, S. aureus, Salmonella enteritidis, Salmonella typhimurium C. operculatus γ-Terpinene (5.8%); globulol (5.6%); cis-linalool oxide (5.2%) Disc diffusion test, MIC=1-4μl/ml [14] Salmonella species Citrus species (+)-Limonene, terpenes MIC=1% [44] E. coli Jasminum sambac (L.) Aiton (Oleaceae) Methyl salicylate; benzyl acetate; methyl anthranilate MIC=31.25μl/ml [45] Enterococcus faecalis, L. disc diffusion test [56] Essential oils used in alternative medicine MIC=0.5μl/ml; MIC=1.0 to 4.0μl/ml [57] concentrations from 0.1% upwards independent on the potential resistance of the individual strains against drugs. Cinnamaldehyde was noticed to exert even stronger antibacterial potency in comparison to carvacrol.…”