Please use this identifier to cite or link to this item: https://www.um.edu.mt/library/oar/handle/123456789/18244
Title: Physicochemical aspects of the higher order structure of gelatin in dilute aqueous solution
Authors: Aquilina, A.
Aquilina, S.
Cortis, R.
Farrugia, Claude
Sinagra, Emmanuel
Keywords: Gelatin
Lime
Hydrogen-ion concentration
Ethanol
Issue Date: 2011
Publisher: University of Malta. Faculty of Science
Citation: Aquilina, A., Aquilina, S., Cortis, R., Farrugia, C., & Sinagra, E. (2011). Physicochemical aspects of the higher order structure of gelatin in dilute aqueous solution. 10th International Conference of Lithuanian Chemists, Vilnius. 1.
Abstract: The conversion of collagen to gelatin results in a heterogeneous product with a broad molecular weight profile (MWP). Addition of a non-solvent, such as ethanol, to gelatin solutions gradually causes the Florey-Huggins solvent-protein interaction parameter to exceed the critical value for the different molecular weight fractions, causing desolvation of the polymer. When sufficient solvent molecules are removed, the gelatin molecules begin to aggregate, resulting in phase separation, and forming a coacervate. Modification of the net charge of the protein, by adjusting the solution pH to values ranging about the iso-electric point (IEP), influences the degree of interaction between the different molecular weight fractions, and hence the response of the protein to non-solvent.
URI: https://www.um.edu.mt/library/oar//handle/123456789/18244
Appears in Collections:Scholarly Works - FacSciChe

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