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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.)

Solid-liquid equilibrium of triolein with fatty alcohols

Full text
Author(s):
Maximo, G. J. [1] ; Costa, M. C. [2] ; Meirelles, A. J. A. [1]
Total Authors: 3
Affiliation:
[1] Univ Estadual Campinas, Sch Food Engn, Dept Food Engn, Lab Extract Appl Thermodynam & Equilibrium, BR-13083862 Campinas, SP - Brazil
[2] Univ Estadual Campinas, Sch Appl Sci, BR-13484350 Limeira, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Brazilian Journal of Chemical Engineering; v. 30, n. 1, p. 33-43, JAN-MAR 2013.
Web of Science Citations: 19
Abstract

Triacylglycerols and fatty alcohols are used in the formulation of cosmetic, pharmaceutical and food products. Although information about the phase transitions of these compounds and their mixtures is frequently required for design and optimization of processes and product formulation involving these substances, these data are still scarce in the literature. In the present study, the solid-liquid phase diagrams of two binary systems composed of triolein + 1-hexadecanol and triolein + 1-octadecanol were evaluated by differential scanning calorimetry (DSC) and optical microscopy. The experimental data were compared with predicted data by solving the phase equilibrium equations using an algorithm implemented in MATLAB. The liquid-phase activity coefficients were calculated using the Margules equation (two- and three-suffix) and the UNIFAC model (original and modified Dortmund model). The approaches used for calculating system equilibrium allowed an accurate prediction of the liquidus line with low deviations from the experimental data. (AU)

FAPESP's process: 09/54137-1 - Acquisition of a particle size/distribution analyzer, a zeta potential measurement system, a spray dryer, and an ultra-high-pressure liquid chromatograph/mass spectrometer
Grantee:Miriam Dupas Hubinger
Support Opportunities: Multi-user Equipment Program
FAPESP's process: 08/56258-8 - Phase equilibrium and purification processes in the production of biofuels and biocompounds
Grantee:Antonio José de Almeida Meirelles
Support Opportunities: Program for Research on Bioenergy (BIOEN) - Thematic Grants