Supercritical fluid extraction and fractionation of different preprocessed rosemary plants.
Two-step supercritical fluid extraction of rosemary leaves at selected conditions of pressure and temperature is proposed to divide the oleoresin into two fractions with different antioxidant activities and essential oil compositions. Rosemary leaves obtained from different sources have been extracted and evaluated in terms of antioxidant activity and essential oil yield and composition. Also, a new device is proposed to improve the performance of the technique in terms of sample collection after SFE.
Ibáñez
E
E
Instituto de Fermentaciones Industriales, CSIC, Madrid, Spain.
Oca
A
A
de Murga
G
G
López-Sebastián
S
S
Tabera
J
J
Reglero
G
G
D000975:Antioxidants / Q000032:analysis*; D003890:Desiccation; D005511:Food Handling / Q000379:methods; D019686:Lamiaceae / Q000737:chemistry*; D019684:Magnoliopsida / Q000737:chemistry*; D009822:Oils, Volatile / Q000032:analysis*; D018515:Plant Leaves
D000975:Antioxidants; D009822:Oils, Volatile