Voltar
Artigo Produção Nacional Revisado por pares
BIBTEX RIS

Supercritical Extraction of Essential Oil from Aniseed ( Pimpinella anisum L) Using CO 2 : Solubility, Kinetics, and Composition Data

2003; American Chemical Society; Volume: 51; Issue: 6 Linguagem: Inglês

10.1021/jf0257493

ISSN

1520-5118

Autores

Vera Maria Rodrigues, Paulo de Tarso Vieira e Rosa, Márcia Ortiz Mayo Marques, Ademir José Petenate, M. Ângela A. Meireles,

Tópico(s)

Phase Equilibria and Thermodynamics

Resumo

Supercritical fluid extraction (SFE) from aniseed using carbon dioxide was performed at 30 degrees C and pressures of 80-180 bar. The chemical composition of the SFE extract was determined by GC-MS; the quantitative analysis was done by GC-FID and TLC. The total amount of extractable substances or global yield (mass of extract/mass of feed) for the SFE process varied from 3.13 to 10.67% (mass). The solubilities of the anise essential oil in CO(2) were 0.0110, 0.0277, 0.0143, and 0.0182 kg of solute/kg of CO(2) at 80, 100, 140, and 180 bar, respectively. The major compounds identified and quantified in the extracts were anethole ( approximately 90%), gamma-himachalene (2-4%), p-anisaldehyde (<1%), methylchavicol (0.9-1.5%), cis-pseudoisoeugenyl 2-methylbutyrate ( approximately 3%), and trans-pseudoisoeugenyl 2-methylbutyrate ( approximately 1.3%). The Sovová model described quite well the experimental overall extraction curves.

Referência(s)