A Comparison Study on Chemical Profile of Laurus Nobilis Leaves by Using Different Extraction Techniques
Abstract
The essential oil of Laurus nobilis leaves were analyzed from natural population of Tirana, located in Central Albania by using two different extraction techniques: hydro-distillation with Clevengar apparatus (HD) and Head space technique by using PDMS fiber (HS-SPME). Laurus nobilis can be found easy (naturally) in western lowlands of Albania up to altitudes of 1500 m (for areas with warm climates). It is easy to harvest (their leaves), and it is very popular in Albania in culinary and traditional medicine. Essential oils derived from Laurus nobilis have valuable pharmacological properties that have been used and continue to be investigated due to their interest properties. The samples of Laurus nobilis (their leaves) were taken in different stations (6 stations) of Tirana, at June 2024. The fresh and air-dried samples were subject of two extraction processes: hydro-distillation by using Clevenger apparatus and Head space technique. The chemical composition of the essential oils for both methods were determined by using a gas chromatograph model Varian 450 GC equipped with split/splitless injector and flame ionization detector. VF-1ms capillary columns (30 m x 0.33 mm x 0.25 um) were used for separation of compounds. Monoterpenes (especially oxygenated monoterpenes) were in higher percentage in all Laurus nobilis samples. Terpenes that were found in higher percentage were: Cineole, Linalool, Menthol, Pulegon, Carvone, Piperthone, Thymol, beta-Caryophyllene. The chemical profile between fresh and dry leaves of Laurus nobilis was almost the same. Small differences were observed between two extraction techniques. Head space technique showed a higher percentage for compounds with lower boiling point. Also between stations were some differences between the main compounds because of atmospheric conditions and soil composition. Chemical profile of Laurus nobilis L. samples from Tirana, was similar with other reported studies from Albania as well as Balkan and Mediterranean areas.
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Details
| Primary Language | English |
|---|---|
| Subjects | Population Ecology |
| Journal Section | Articles |
| Authors | |
| Publication Date | June 30, 2025 |
| Submission Date | June 1, 2025 |
| Acceptance Date | June 8, 2025 |
| Published in Issue | Year 2025 Volume: 20 Issue: 2 |
Cite
“Journal of International Environmental Application and Science”