Antibacterial properties and chemical characterization of the essential oils from summer savory extracted by microwave-assisted hydrodistillation

Abstract

Antibacterial properties and chemical characterization of the essential oils from summer savory (Satureja hortensis) extracted by microwave-assisted hydrodistillation (MAHD) were compared with those of the essential oils extracted using the traditional hydrodistillation (HD) method. While MAHD at 660 W required half as much time as HD needed, similar antibacterial efficacies were found from the essential oils obtained by the two extraction methods on two food pathogens (Staphylococcus aureus, a gram positive bacterium, and Escherchia coli, a gram negative bacterium). Also, as it was the case with the essential oils extracted by HD, that of MAHD indicated greater influence on S. aureus than on E. coli. The compositions of the extracted essential oils were also studied using GC-MS analysis. The same components with negligible differences in their quantities were found in the extracted essential oils using the two methods outlined above. Overall, to reduce the extraction time, MAHD can be applied at higher microwave levels without any compromise in the antibacterial properties of the essential oils extracted.

Influence of Distillation Method on the Content and Composition of Essential Oil Isolated from Summer Savory (Satureja hortensisL.)

“…The retention indices (RI) were calculated for all constituents using a homologous series of nalkanes (C 8 -C 20 …”

Chemical composition and antifungal effects of three species of Satureja (S. hortensis, S. spicigera, and S. khuzistanica) essential oils on the main pathogens of strawberry fruit

“…S. hortensis L. ('summer savory') is a well-known medicinal plant which is widely distributed in different parts of Iran as one of the most important of twelve classified Satureja species. Besides of its usual use in food industry as an aromatic and flavouring agent, it has been received major consideration for having anti-inflamatory (Lawrence, 2000), antioxidant , antibacterial Şahin et al, 2003) and antifungal activities Kotan et al, 2013;Razzaghi-Abyaneh et al, 2008;Rezvanpanah et al, 2011). S. spicigera, and S. khuzistanica are among other species of Satureja found in Iran.…”

The Effects of Satureja hortensis L. Dried Leaves on Serum Sugar, Lipid Profiles, hs-CRP, and Blood Pressure in Metabolic Syndrome Patients: A Double-Blind Randomized Clinical Trial

“…Ferulic acid is another component of S. hortensis (3,4) that is a beta1-adrenoceptor antagonist with partial beta2-agonist activity without any activity on alphaadrenoceptors. These findings suggest that ferulic acid could potentially increase cardiac output and dilate arteries to skeletal muscles, leading to negative chronotropic effects (35).…”

“…Some of these botanical remedies, which include plant extracts and active plant components, are known by consumers as natural and safe remedies for the prevention and treatment of many diseases. which belongs to the Lamiaceae family, is widely cultivated, and its aerial parts are usually collected during the flowering stage (3). In Farsi, it is called Marze and has been used in Persian medicine for thousands of years in Iran.…”