Chemical composition of the essential oils from the aerial parts of Malva neglecta Wallr. from Khorramabad, Lorestan Province, Iran using solvent free microwave extraction (SFME) method

This study deals with the investigation of the efficacy of solvent free microwave extraction (SFME) method to extract the essential oils from the aerial parts of Malva neglecta Wallr.. The essential oils were then injected onto an HP-5MS column of a commercially available GC/MS (Hewlett-Packard 5973), which resulted in a chromatogram consisting of 24 compounds accounting for 99.9% of the oil composition. In terms of general categories, non-terpene hydrocarbons and sesquiterpene hydrocarbons were found to be the major fractions of the chemical profiles. Moreover, hinokione was recognized as the most abundant constituent component of the essential oil comprising 40.7% of the total oil structure. Regarding our findings in this study, the SFME can be introduced as a rapid, cost-effective, and environmentally friendly extraction method for the separation of the essential oils.