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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

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

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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]
Total Authors: 8
[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
Total Affiliations: 2
Document type: Journal article
Source: JOURNAL OF CHEMICAL AND ENGINEERING DATA; v. 56, n. 5, p. 2362-2370, MAY 2011.
Web of Science Citations: 18

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)

FAPESP's process: 08/07326-0 - Deterpenation of lemon and bergamot peel oils: experimental data and modeling of liquid-liquid equilibria
Grantee:Cristina Chiyoda Koshima
Support type: Scholarships in Brazil - Master
FAPESP's process: 09/17271-1 - Liquid-liquid equilibria study for systems composed by components of origanum essential oil and alcoholic solvent
Grantee:Maria Carolina Capellini
Support type: Scholarships in Brazil - Scientific Initiation
FAPESP's process: 09/07910-7 - Physical properties of systems composed by essential oils and alcoholic solvents: experimental data, modelling and prediction
Grantee:Ivana Morais Geremias de Andrade
Support type: Scholarships in Brazil - Scientific Initiation