Experimental results for the extraction of essential oil from Lippia sidoides cham. using pressurized carbon dioxide
Document title: Experimental results for the extraction of essential oil from Lippia sidoides cham. using pressurized carbon dioxide
Journal: Brazilian journal of chemical engineering
Database: PERIÓDICA
System number: 000308815
ISSN: 0104-6632
Authors: 1



2
3
Institutions: 1Universidade Federal do Rio Grande do Norte, Departamento de Engenharia Quimica, Natal, Rio Grande do Norte. Brasil
2Instituto Agronomico de Campinas, Centro de Genetica, Biologia Molecular e Fitoquimica, Campinas, Sao Paulo. Brasil
3Universidade Estadual de Campinas, Faculdade de Engenharia de Alimentos, Campinas, Sao Paulo. Brasil
Year:
Season: Abr
Volumen: 19
Number: 2
Pages: 229-241
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Experimental, aplicado
English abstract The odoriferous species Lippia sidoides Cham. is abundant in the Brazilian Northeast. Its essential oil possesses antiseptic activity due to the presence of thymol. In this work, thermodynamic and kinetic data were experimentally determined for the CO2 + L. sidoides system. Solubility was determined using the dynamic method at pressures of 66.7 and 78.5 bar and temperatures of 283.15, 288.15, 293.15, 295.15, and 298.15 K. SFE kinetic data were obtained at 288.15 K and 66.7 bar. The composition of the multicomponent solute mixture was determined by GC-MS and compared to the composition of both the volatile oil obtained by steam distillation and the oleoresin obtained using ethanol. The SFE process yield was higher than the yield of either the steam distillation or the ethanol extraction. The solubilities were correlated using the Peng-Robinson equation of state with one binary interaction parameter for the attractive term, considering the essential oil as a pseudo-component. Sovová’s model quantitatively described the overall extraction curve
Disciplines: Química
Keyword: Fitoquímica,
Ingeniería química,
Aceites esenciales,
Extracción química,
Dióxido de carbono,
Alta presión,
Lippia sidoides
Keyword: Chemistry,
Phytochemistry,
Chemical engineering,
Essential oils,
Chemical extraction,
High pressure,
Carbon dioxide,
Lippia sidoides
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