caa a22 4500 465796621 CHVBK 20180323112039.0 cr unu---uuuuu 170327e19901001xx s 000 0 eng 10.1007/BF02540417 doi (NATIONALLICENCE)springer-10.1007/BF02540417 Influence of cis and trans double bonds on the thermal and structural properties of monoacid triglycerides [Elektronische Daten] [A. Desmedt, C. Culot, C. Deroanne, F. Durant, V. Gibon] In order to determine the importance ofcis ortrans unsaturations from a technological point of view, the study of the structural and thermal properties of monoacid triglycerides: tristearin (SSS), triolein (OOO) and trielaidin (EEE) has been undertaken. X-ray powder diffraction and differential scanning calorimetry are useful tools to elucidate the physicochemical properties of such compounds. In this work polymorphism, kinetics of polymorphism and intersolubility have been investigated. From a structural point of view, we have shown that, according to the polymorphic form, the conformational properties of EEE are similar to those of the corresponding saturated molecule SSS or to those of thecis unsaturated analogue OOO. The study of the intersolubility behavior of these three compounds has shown a different affinity of thecis andtrans unsaturated molecules vs the completely saturated one. By the same method, we have observed thattrans unsaturated hydrocarbon chains cocrystallize with bothcis-unsaturated (OOO) and totally saturated hydrocarbon chains (SSS); thetrans double bond of EEE can adapt to the two kinds of lattices. The study of the kinetics of polymorphism has shown that 5% of OOO or EEE accelerate the β′→β transition of SSS, while the reason for the two phenomena is quite different. The adaptation of EEE tocis-unsaturated and to saturated hydrocarbon chains shown in the structural and intersolubility behavior analyses also appears in the kinetic study, after adjunction of 5% of OOO into EEE. All the results confirm that, from structural and thermal points of view, EEE has an intermediate behavior between SSS and OOO. AOCS Press, 1990 Intersolubility nationallicence kinetics nationallicence phase diagrams nationallicence phase transitions nationallicence polymorphism nationallicence structural properties nationallicence thermal behavior nationallicence trielaidin nationallicence triolein nationallicence tristearin nationallicence Desmedt A. Laboratoire de Chimie Moléculaire Structurale, Facultés Universitaires Notre-Dame de la Paix, Rue de Bruxelles, 61, B 5000, Namur, Belgium aut Culot C. Laboratoire de Chimie Moléculaire Structurale, Facultés Universitaires Notre-Dame de la Paix, Rue de Bruxelles, 61, B 5000, Namur, Belgium aut Deroanne C. Chaire de Technologie Agro-alimentaire, Facutlés des Sciencs Agronomiques de l'Etat, Passage des Deportés, 2, B 5800, Gembloux, Belgium aut Durant F. Laboratoire de Chimie Moléculaire Structurale, Facultés Universitaires Notre-Dame de la Paix, Rue de Bruxelles, 61, B 5000, Namur, Belgium aut Gibon V. Laboratoire de Chimie Moléculaire Structurale, Facultés Universitaires Notre-Dame de la Paix, Rue de Bruxelles, 61, B 5000, Namur, Belgium aut Journal of the American Oil Chemists' Society Springer-Verlag 67/10(1990-10-01), 653-660 0003-021X 67:10<653 1990 67 11746 https://doi.org/10.1007/BF02540417 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02540417 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Desmedt A. Laboratoire de Chimie Moléculaire Structurale, Facultés Universitaires Notre-Dame de la Paix, Rue de Bruxelles, 61, B 5000, Namur, Belgium aut NATIONALLICENCE 700 1- Culot C. Laboratoire de Chimie Moléculaire Structurale, Facultés Universitaires Notre-Dame de la Paix, Rue de Bruxelles, 61, B 5000, Namur, Belgium aut NATIONALLICENCE 700 1- Deroanne C. Chaire de Technologie Agro-alimentaire, Facutlés des Sciencs Agronomiques de l'Etat, Passage des Deportés, 2, B 5800, Gembloux, Belgium aut NATIONALLICENCE 700 1- Durant F. Laboratoire de Chimie Moléculaire Structurale, Facultés Universitaires Notre-Dame de la Paix, Rue de Bruxelles, 61, B 5000, Namur, Belgium aut NATIONALLICENCE 700 1- Gibon V. Laboratoire de Chimie Moléculaire Structurale, Facultés Universitaires Notre-Dame de la Paix, Rue de Bruxelles, 61, B 5000, Namur, Belgium aut NATIONALLICENCE 773 0- Journal of the American Oil Chemists' Society Springer-Verlag 67/10(1990-10-01), 653-660 0003-021X 67:10<653 1990 67 11746 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer