| Full text | |
| Author(s): |
Costa, Mariana C.
[1, 2, 3]
;
Rolemberg, Marlus P.
[4]
;
Meirelles, Antonio J. A.
[3]
;
Coutinho, Joao A. P.
[1]
;
Kraehenbuehl, M. A.
[2]
Total Authors: 5
|
| Affiliation: | [1] Univ Aveiro, Dept Quim, CICECO, P-3810193 Aveiro - Portugal
[2] Univ Estadual Campinas, Sch Chem Engn, Dept Chem Proc, LPT, BR-13083970 Campinas, SP - Brazil
[3] Univ Estadual Campinas, Fac Food Engn, Dept Food Engn, EXTRAE, BR-13083862 Campinas, SP - Brazil
[4] Univ Fed Maranhao, Dept Chem Technol, DETQI, Sao Luis, Maranhao - Brazil
Total Affiliations: 4
|
| Document type: | Journal article |
| Source: | Thermochimica Acta; v. 496, n. 1-2, p. 30-37, Dec. 2009. |
| Web of Science Citations: | 37 |
| Abstract | |
This study was aimed at using the solid-liquid phase diagrams for three binary mixtures of saturated fatty acids, especially the phase transitions below the liquidus line. These mixtures are compounded by caprylic acid (C(8:0)) + myristic acid (C(14:0)). capric acid (C(10:0)) + palmitic acid (C(16:0)), lauric acid (C(12:0)) + stearic acid (C(18:0)), differing by six carbon atoms between carbon chains. The phase diagrams were obtained by differential scanning calorimetry (DSC). The polarized light microscopy was used to complement the characterization for a full grasp of the phase diagram. Not only do these phase diagrams present peritectic and eutectic reactions, but also metatectic reactions, due to solid-solid phase transitions common, in fatty acids. These findings have contributed to the elucidation of the phase behavior of these important biochemical molecules with implications in various industrial production. (C) 2009 Elsevier B.V. All rights reserved. (AU) | |
| FAPESP's process: | 08/09502-0 - Estudo detalhado do equilíbrio sólido-líquido de misturas de álcoois graxos com ácidos graxos |
| Grantee: | Mariana Conceição da Costa |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 05/53095-2 - Phase equilibrium and separation processes of fatty and aqueous food solutions |
| Grantee: | Antonio José de Almeida Meirelles |
| Support Opportunities: | Research Projects - Thematic Grants |
| 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 |