Study of extraction and chemical compounds of Scrophularia striata Boiss. and Scrophularia deserti Delile using HS-SPME and GC-MS

In this study, from June 2019 to May 2019 aerial parts of Scrophularia striata Boiss. were collected from Ilam city and those of Scrophularia deserti Delile from Dehloran city, Ilam province in western Iran. The aerial parts of the medicinal plants were pulverized. The essential and volatile oils were extracted by headspace solid-phase microextraction (HSSPME) and their chemical compounds analyzed by Gas chromatography–mass spectrometry (GC-MS). Using HS-SPME, 68 and 49 chemical compounds were identified from S. striata and S. deserti, respectively. Spathulenol (18.41%) was the highest chemical compound of the essential oil of S. striata, followed by caryophyllene oxide (15.38%), linalool (11.85%), alpha-terpineol (8.34%), trans-caryophyllene (4.44%) and geraniol (3.10%). The most important identified compounds from S. deserti were caryophyllene oxide (15.38%), linalool (11.85%), alpha-terpineol (8.34%), trans-caryophyllene (4.44%) and geraniol (3.10%). The most important chemical compounds of S. deserti essential oil included alpha-pinene (25.54%), alpha-phellandrene (19.60%), beta-myrcene (11.29%) and trans-caryophyllene (6.78%). Results show major constituents of this two plant include with a high amount of Spathulenol and caryophyllene oxide has high pharmaceutical and healthful value.