Supercritical extraction of essential oils of Piper auritum and Porophyllum ruderale
Supercritical extraction of essential oils of Piper auritum and Porophyllum ruderale
- The Journal of Supercritical Fluids, 127, p.97-102, 2017 .
Essential oils (EO)ofPiper auritum("hoja santa")and Porophyllum ruderale("pápalo" or"pápalo quelite"), previously dried, were obtained by supercritical extraction (SCE)with CO2. Oil extraction was performed at two temperatures (40 and 50 °C)and two pressures (10.34 and 17.24 MPa). The steam distillation (SDE)method was used also for extraction of EO. Oils were analyzed in antioxidant activity (ABTS method). The chemical composition of oils, by gas chromatography-mass spectroscopy (GC-MS).Piper auritumoil yields were in the range 2.37 ± 0.05-3.09 ± 0.12 g oil/100 g dry material and in Porophyllum ruderale the yields were 0.82 ± 0.01-1.35 ± 0.09 g oil/100 g dry material. The antioxidant activity, for plants, were in the range 1.30-11.65 mg equivalent of Trolox/g of oil and 1.09-10.16 mg of ascorbic acid equivalent/g of oil. The main components identified by GC-MS inPiper auritumoil were safrole and phytol and inPorophyllum ruderaleoil were isosafrole,a-copaene and phytol.
PIPER AURITUM("HOJA SANTA")
POROPHYLLUM RUDERALE("PÁPALO"OR"PÁPALO
QUELITE"
SUPERCRITICAL EXTRACTION
ANTIOXIDANT ACTIVITY
Essential oils (EO)ofPiper auritum("hoja santa")and Porophyllum ruderale("pápalo" or"pápalo quelite"), previously dried, were obtained by supercritical extraction (SCE)with CO2. Oil extraction was performed at two temperatures (40 and 50 °C)and two pressures (10.34 and 17.24 MPa). The steam distillation (SDE)method was used also for extraction of EO. Oils were analyzed in antioxidant activity (ABTS method). The chemical composition of oils, by gas chromatography-mass spectroscopy (GC-MS).Piper auritumoil yields were in the range 2.37 ± 0.05-3.09 ± 0.12 g oil/100 g dry material and in Porophyllum ruderale the yields were 0.82 ± 0.01-1.35 ± 0.09 g oil/100 g dry material. The antioxidant activity, for plants, were in the range 1.30-11.65 mg equivalent of Trolox/g of oil and 1.09-10.16 mg of ascorbic acid equivalent/g of oil. The main components identified by GC-MS inPiper auritumoil were safrole and phytol and inPorophyllum ruderaleoil were isosafrole,a-copaene and phytol.
PIPER AURITUM("HOJA SANTA")
POROPHYLLUM RUDERALE("PÁPALO"OR"PÁPALO
QUELITE"
SUPERCRITICAL EXTRACTION
ANTIOXIDANT ACTIVITY