Simultaneous Distillation–Extraction of Essential Oils from Rosmarinus officinalis L.

The present study describes a procedure to isolate essential oils from Rosmarinus officinalis L. using simultaneous distillation–extraction (SDE). can be used for medicinal purposes, as well in the cooking and cosmetics industries. SDE technique extraction combines steam distillation combined with continuous solvent or co-solvent mixture, providing faster extractions low volumes. effect of nature time on efficiency was evaluated. best performance achieved pentane 1 h extraction. obtained by extracts were analyzed gas chromatography flame ionization detection (GC-FID). Extraction efficiencies ranged 40 70% majority compounds tested, precision (measured relative standard deviation) varied between 6 35%. Among most abundant sample 1,8-cineole, (-) –borneol, ?-pinene, (S)-(-)- ?–terpineol, (-)-bornyl acetate, linalool, 2,2,6-trimethylcyclohexanone. method proved suitable option obtaining free cuticular waxes chlorophylls.