![Sample our Physical Sciences journals, sign in here to start your FREE access for 14 days]({"type":"image" , "src" : "/sda/110819/TOC-Subject-Sample-2021-Physical-Sciences.jpg"})
Abstract
The effects of microwave power and time in solvent-free microwave extraction (SFME) on the yield and composition of the essential oil obtained from laurel (Laurus nobilis L.) leaves were studied. The extraction was also performed by hydrodistillation as a control. Specific gravities and refractive indices of the essential oils obtained by different methods and at various conditions were also examined. The main constituent of laurel essential oil was 1,8-cineole (630–730 mg/mL). Essential oils obtained by SFME and hydrodistillation were comparable with respect to both yield and composition while the process time was reduced by 55–60% when SFME was used.
ACKNOWLEDGEMENT
TUBITAK (The Scientific & Technological Research Council of Turkey) is greatly acknowledged for supporting this project (Grant No: TOVAG 104O265). Dried laurel leaves were provided by Kütaş (Kütaş Tarim Ürünleri Diş Tic. San. A.Ş., İzmir, Turkey).
Notes
a Retention time in min on HP-5MS column obtained by MSD
b Retention time in min on HP-5MS column obtained by FID.
∗Means physical properties with different letters within each row are significantly different, p ≤ 0.05.
