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Measurements of essential oil extract and antioxidants in Syrian Myrtus communis L. leaves using photochemiluminescence assay

100%

Zayzafoon G., Odeh A., Mahzia Y., Allaf A. W.

Herba Polonica

2011

tom 57

nr 3

The essential oil extracts and antioxidant measurements of Syrian Myrtus communis L. leaves as hydrophilic and hydrophobic existence species have been carried out. The plant leaves as a source of antioxidants was tested by the influence of its aqueous and essential oil extracts on the yield of PCL solution applying very sensitive and reliable method. By means of a PCL assay, it was possible to assess the total antioxidants capacity of hydrophilic and hydrophobic species existence in Syrian Myrtus communis L. leaves. It has been found that the integral antioxidant capacity value of Syrian Myrtus communis L. leaves was found in Kurdaha site which has a value of 465.67±1.18 TE/g DM. The following three main substances were found in the essential oil extracts: a-pinene, cineole and limonene.

Antimicrobial properties of 6-bromoeugenol and eugenol

80%

Mahboub R., Memmou F.

International Letters of Natural Sciences

2016

tom 53

We have studied the antimicrobial properties of 6-bromoeugenol and eugenol by three strains: Pseudomonas aeruginosa (S1), Escherichia coli (S2) and Staphylococcus aureus (S3). We have determined the minimum inhibitory concentration (MIC) for a range of concentrations using the disc diffusion method. We note that all samples present an antimicrobial activity toward the tested bacterial strains at different concentrations (1, 0.5 and 0.25 mg/ml). The 6-bromoeugenol gives modest activity with (S1) and (S3). Eugenol reacts positively with the Pseudomonas aeruginosa (S1) at all concentrations and with the Escherichia coli (S2) at 0.5 mg/ml. We remark that the Pseudomonas aeruginosa (S1) is the more sensitive strain than Escherichia coli (S2) and Staphylococcus aureus (S3). We have estimated the activity coefficient which has confirmed the antimicrobial activity of the different samples. So, 6-bromoeugenol has shown his efficiency as antimicrobial agent.

Ograniczanie wyników

1 Herba Polonica

1 International Letters of Natural Sciences

1 Allaf A. W.

1 Mahboub R.

1 Mahzia Y.

1 Memmou F.

1 Odeh A.

1 Zayzafoon G.

1 2016

1 2011

Wyniki wyszukiwania

Measurements of essential oil extract and antioxidants in Syrian Myrtus communis L. leaves using photochemiluminescence assay

Antimicrobial properties of 6-bromoeugenol and eugenol