Synergistic and antimicrobial properties of commercial turmeric (Curcuma longa) essential oil against pathogenic bacteria

Antunes, Sara Albino; Robazza, Weber da Silva; Schittler, Liziane; Gomes, Gilmar de Almeida

doi:10.1590/s0101-20612012005000082

Cited by 19 publications

(17 citation statements)

References 27 publications

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“…Regarding the inactivity of the obtained essential oil against L. monocitogenes our results are in agreement with those obtained by Antunes and coworkers [36]. In order to increase the activity of the essential oil against these bacteria they added an antioxidant -ascorbic acid and observed their synergistic action.…”

Section: Antioxidant Activitysupporting

confidence: 91%

Chemical composition, antioxidant and antimicrobial activity of the turmeric essential oil (Curcuma longa L.)

Stanojevic¹,

Stanojević²,

Cvetković³

et al. 2015

Adv techn

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In the present work, essential oil has been obtained by Clevenger-type hydrodestillation from grounded curcuma rhizome (Rhizoma Curcumae) (Turkey) with hydromodulus 1:5 m/V during 180 minutes. The qualitative and quantitative composition of the oil was determined by GC-MS and GC-FID spectrometry. The antioxidant activity of the obtained oil was determined using DPPH assay just after adding DPPH radical and after 20 min, 30 min and 45 min incubation with radical. The antimicrobial activity was determined using a discdiffusion method. The yield of the essential oil was 0.3 cm 3 / 100 g plant material. Eight compounds were identified. The major ones were ar-turmerone (22.7%), turmerone (26%) and curlone (16.8%). The best antioxidant activity showed the oil incubated for 45 minutes with DPPH radical. EC50 values for the obtained oil were 1.784 mg/cm 3 (without incubation), 0.098 mg/cm 3 (after 20 minutes), 0.072 mg/cm 3 (after 30 minutes) and 0.045 mg/cm 3 (after 45 minutes incubation with radical). The oil showed the best antimicrobial activity against Candida albicans. The results indicate that turmeric essential oil is an extremely strong antioxidant and antimicrobial (antifungal) agent with potential application in the food and pharmaceutical industries as a safer alternative to the synthetic antioxidants and antimicrobial agents.

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Section: Antioxidant Activitysupporting

confidence: 91%

Chemical composition, antioxidant and antimicrobial activity of the turmeric essential oil (Curcuma longa L.)

Stanojevic¹,

Stanojević²,

Cvetković³

et al. 2015

Adv techn

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“…Similar to our result, Essien, Newby, Walker, Setzer, and Ekundayo () have demonstrated strong antibacterial activity of turmeric leaf volatile oil against the gram positive organisms particularly B. cereus and S. aureus which this activity attributed to ar‐turmerone that is the major component of the volatile oil. Our results are in agreement with Antunes, Robazza, Schittler, and Gomes () results who reported that commercial turmeric volatile oil had not significant antimicrobial activity against Salmonella typhimurium .…”

Section: Resultssupporting

confidence: 93%

The effect of non‐thermal processing on chemical constituents and antibacterial properties of turmeric rhizome volatile oil

Esmaeili

Barzegar

Sahari

et al. 2018

J Food Process Engineering

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The effect of gamma irradiation under various packaging atmospheres on chemical constituents and antibacterial properties of turmeric rhizome volatile oil has been studied. The turmeric rhizome powder was packaged under different atmospheres (air, N₂, and vacuum) by high‐barrier multilayered film (Pet/EVOH–PA/LDPE) and they were gamma irradiated at dose of 5, 10, and 15 kGy. According to the results, gamma irradiation under different atmospheres of packaging did not change antibacterial properties of the volatile oil. However, oxygenated sesquiterpenes which are the major chemical constituent of the volatile oil increased by irradiation significantly by 6.45% (at 15 kGy under air packaging) (p < .05). Also, modified atmosphere packaging (MAP) was more effective to improve these active compounds, significantly (p < .05). Since gamma irradiation may cause chemical oxidation, isomerization, and hydroxylation of volatile oil's constituents, it concluded that these changes could be minimized under MAP in turmeric rhizome volatile oil, significantly. Practical applications Ionizing radiation as a cold‐pasteurization method has widespread and growing applications in decontamination of spice and condiments but, there are lack of information or contradictory results on the effects of irradiation on chemical constituents and physicochemical properties of them. Our results showed that gamma irradiation caused quantitative not qualitative changes on chemical constituents of turmeric's volatile oil. Irradiation did not have effect on antibacterial properties of turmeric volatile oils in all doses under different packaging atmospheres. The outcome of this research demonstrated irradiation resulted in improving oxygenated sesquiterpenes contents which are the major components of turmeric volatile oil. It should be noted that irradiation under modified atmosphere (N2 and vacuum) was more effective in improving these constituents, too. Statistically, the effect of N2 and vacuum was the same but practically vacuum packaging is recommended.

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“…With the dearth of novel antibiotics, traditional healers’ extracted Eos from TMP used for treatment of different illness [15]. The chemical composition of essential oils isolated by steam distillation contain varies bioactive compound that exhibited remarkable bacteriostatic and bactericidal activities [14, 16].…”

Section: Introductionmentioning

confidence: 99%

Combined antibacterial effect of essential oils from three most commonly used Ethiopian traditional medicinal plants on multidrug resistant bacteria

Gadisa

Weldearegay

Desta

et al. 2019

BMC Complement Altern Med

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BackgroundAn alarm increase the rate of emerging and re-emerging of multidrug resistant bacteria have been caused great public health concern in the worldwide. They have been resisting for most or majority of currently available and affordable antibiotics and imposed socioeconomic catastrophe at global scale. As a result, there is utmost important to discover new or modify currently available antibiotics. The aim of this study was to evaluate combined antibacterial effect of essential oils obtained from Blepharis cuspidata, Boswellia ogadensis and Thymus schimper against multidrug resistance (MDR) Escherichia coli, Klebsiella pneumoniae and Methicillin resistant S. aureus.MethodsEssential oil (EO) was extracted from the aerial part of B. cuspidata, B.ogadensis and T. schimper by steam distillation and stored in brown bottles at 4 °C. There were mixed in 1:1 ratio and adsorbed to disc and placed on MHA and measured their minimum inhibitory zone seeded with E. coli, K. pneumoniae and MRAS after 18-24 H. minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) were measured by broth micro-dilution method. The interaction between EOs was determined by fractional inhibitory concentration index.ResultsThe antibacterial potential of mixed oil depends on the doses and type of the EOs and bacteria species. The combined EOs of B.cuspidata and T.schimperi had inhibition zone (39 mm), its MIC and MBC value was 0.39 μl/ml against MRSA. It had inhibition zone (28-35 mm), MIC value 0.39–6.25 μl/ml and MBC (0.78–12.5 μl/ml) against MDR E. coli and K. pneumoniae. Whereas, combined effects of B. cuspidata and B. ogadensis had MIC values ranges from 0.78–6.25 μl/ml for E.coli and K. pneumoniae and 1.56 μl/ml for MRSA. There was strong synergistic effect between the combination of B.cuspidata and T.schimperi. This study revealed that gram negative bacteria were slightly less susceptible than gram positive.ConclusionsThis in vitro study of combined EOs has significant antibacterial effect than using each of them and even it was more potent antibacterial effect on MDR as compare to modern antibiotics. Hence, it can be applied to a pharmaceutical composition as modulator or adjuvant or precursor for synthesis of new antibiotic in future activities.

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Synergistic and antimicrobial properties of commercial turmeric (Curcuma longa) essential oil against pathogenic bacteria

Cited by 19 publications

References 27 publications

Chemical composition, antioxidant and antimicrobial activity of the turmeric essential oil (Curcuma longa L.)

Chemical composition, antioxidant and antimicrobial activity of the turmeric essential oil (Curcuma longa L.)

The effect of non‐thermal processing on chemical constituents and antibacterial properties of turmeric rhizome volatile oil

Combined antibacterial effect of essential oils from three most commonly used Ethiopian traditional medicinal plants on multidrug resistant bacteria

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