Deterpenation of Bergamot Essential Oil Using Liquid-Liquid Extraction: Equilibrium Data of Model Systems at 298.2 K

Autor(es)

Chiyoda, Cristina ^[1] ; Capellini, Maria C. ^[1] ; Geremias, Ivana M. ^[1] ; Carvalho, Fernanda H. ^[1] ; Aracava, Keila K. ^[1] ; Bueno, Rachel S. ^[2] ; Goncalves, Cintia B. ^[1] ; Rodrigues, Christianne E. C. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Dept Food Engn ZEA FZEA, LES, BR-13635900 Pirassununga, SP - Brazil

^[2] Univ Sao Paulo, Dept Basic Sci ZAB FZEA, BR-13635900 Pirassununga, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF CHEMICAL AND ENGINEERING DATA; v. 56, n. 5, p. 2362-2370, MAY 2011.
• Citações Web of Science: 18

Resumo

The deterpenation of bergamot essential oil can be performed by liquid liquid extraction using hydrous ethanol as the solvent. A ternary mixture composed of 1-methyl-4-prop-1-en-2-yl-cydohexene (limonene), 3,7-dimethylocta-1,6-dien-3-yl-acetate (linalyl acetate), and 3,7-dimethylocta-1,6-dien-3-ol (linalool), three major compounds commonly found in bergamot oil, was used to simulate this essential oil. Liquid liquid equilibrium data were experimentally determined for systems containing essential oil compounds, ethanol, and water at 298.2 K and are reported in this paper. The experimental data were correlated using the NRTL and UNIQUAC models, and the mean deviations between calculated and experimental data were lower than 0.0062 in all systems, indicating the good descriptive quality of the molecular models. To verify the effect of the water mass fraction in the solvent and the linalool mass fraction in the terpene phase on the distribution coefficients of the essential oil compounds, nonlinear regression analyses were performed, obtaining mathematical models with correlation coefficient values higher than 0.99. The results show that as the water content in the solvent phase increased, the kappa value decreased, regardless of the type of compound studied. Conversely, as the linalool content increased, the distribution coefficients of hydrocarbon terpene and ester also increased. However, the linalool distribution coefficient values were negatively affected when the terpene alcohol content increased in the terpene phase. (AU)

• Processo FAPESP: 08/07326-0 - Deterpenação de Óleos Essenciais de Bergamota e Limão: Determinação de Dados Experimentais e Modelagem do Equilíbrio Líquido-líquido
• Beneficiário: Cristina Chiyoda Koshima
• Modalidade de apoio: Bolsas no Brasil - Mestrado
• Processo FAPESP: 06/05973-3 - Deterpenação de óleos essenciais por extração líquido-líquido
• Beneficiário: Christianne Elisabete da Costa Rodrigues
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 09/17271-1 - Estudo do equilíbrio líquido-líquido de sistemas compostos por componentes do óleo essencial de orégano e solvente alcoólico
• Beneficiário: Maria Carolina Capellini
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica
• Processo FAPESP: 09/07910-7 - Propriedades físicas de sistemas compostos por componentes de óleos essenciais e solvente alcoólico: determinação experimental, modelagem e predição
• Beneficiário: Ivana Morais Geremias de Andrade
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica