Solid-Liquid Equilibrium of Saturated Fatty Acids plus Triacylglycerols

Autor(es)

Costa, Mariana C. ^[1] ; Boros, Laslo A. D. ^[2] ; Rolemberg, Marlus P. ^[3] ; Krahenbuhl, Maria A. ^[2] ; Meirelles, Antonio J. A. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas, Dept Food Engn DEA FEA, EXTRAE, BR-13083862 Campinas, SP - Brazil

^[2] Univ Estadual Campinas, Dept Chem Proc DPQ FEQ, LPT, BR-13083970 Campinas, SP - Brazil

^[3] Univ Fed Maranhao, Dept Chem Technol, DETQUI, Sao Luis, Maranhao - Brazil

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF CHEMICAL AND ENGINEERING DATA; v. 55, n. 2, p. 974-977, FEB 2010.
• Citações Web of Science: 13

Resumo

Phase diagrams of tricaprylin (1,3-di(octanoyloxy)propan-2-yl octanoate) + myristic acid (tetradecanoic acid), commercial triolein + palmitic acid (hexadecanoic acid), and trilinolenin (propane-1,2,3-triyl tris{[}(9Z, 12Z, 15Z)-octadeca-9,12,15-trienoate]) + stearic acid (octadecanoic acid) were obtained by differential scanning calorimetry (DSC). The occurrence of an eutectic point very close to the pure triacylglycerol can be assumed in all of the three investigated systems. The liquid phase was modeled using Margules two-suffix, Margules three-suffix, nonrandom two-liquid (NRTL), and universal quasichemical functional group activity coefficient (UNIFAC) Dortmund models. The best modeling results were obtained using the NRTL model. The UNIFAC Dortmund model describes the multicomponent system containing commercial triolein + palmitic acid well. (AU)

• Processo FAPESP: 08/09502-0 - Estudo detalhado do equilíbrio sólido-líquido de misturas de álcoois graxos com ácidos graxos
• Beneficiário: Mariana Conceição da Costa
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado