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dc.contributor.author
Palla, Camila Andrea  
dc.contributor.author
Carrin, Maria Elena  
dc.date.available
2017-10-05T15:28:22Z  
dc.date.issued
2014-06-16  
dc.identifier.citation
Palla, Camila Andrea; Carrin, Maria Elena; Kinetics modeling of the acidolysis with immobilized Rhizomucor miehei lipases for production of structured lipids from sunflower oil; Elsevier Science; Biochemical Engineering Journal; 90; 16-6-2014; 184-194  
dc.identifier.issn
1369-703X  
dc.identifier.uri
http://hdl.handle.net/11336/25961  
dc.description.abstract
Sunflower oil modification for production of semisolid fats was carried out via acidolysis using palmitic and stearic acids (P+St), hexane and a developed biocatalyst from Rhizomucor mieheilipases. Its kinetic behavior was studied by employing three mathematical models proposed in the literature. Furthermore, a new model was proposed to describe not only the variation of triacylglycerols (TAG), diacylglycerols (DAG), and free fatty acids groups but also the acyl migration reaction occurrence. The effect of the reaction temperature on the kinetic and equilibrium parameters, as well as TAG and reaction intermediates profiles was analyzed. Increasing reaction temperature generated major changes in the overall composition of acylglycerols and gave rise to the highest composition of P+St in the obtained structured lipids (58%, 70 h, 60 °C). P+St incorporation was successfully adjusted by an empirical model (Model I) and a lumped parameter model (Model II) for all the studied reaction times, while the model based on a Ping Pong Bi Bi mechanism (Model III) was only able to describe the kinetics behavior (through the variation of reactant saturated fatty acids concentration) until 24 h. Experimental data were fit satisfactorily by the proposed model (Model IV), showing that the increment in the disaturated TAG formation achieved by the increment in temperature was principally related to the favored DAG formation from triunsaturated TAG.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Elsevier Science  
dc.rights
info:eu-repo/semantics/restrictedAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
Enzyme Biocatalysis  
dc.subject
Modeling  
dc.subject
Lipase  
dc.subject
Kinetic Parameters  
dc.subject.classification
Bioprocesamiento Tecnológico, Biocatálisis, Fermentación  
dc.subject.classification
Biotecnología Industrial  
dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS  
dc.title
Kinetics modeling of the acidolysis with immobilized Rhizomucor miehei lipases for production of structured lipids from sunflower oil  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2017-09-25T18:12:49Z  
dc.journal.volume
90  
dc.journal.pagination
184-194  
dc.journal.pais
Países Bajos  
dc.journal.ciudad
Amsterdam  
dc.description.fil
Fil: Palla, Camila Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina  
dc.description.fil
Fil: Carrin, Maria Elena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina  
dc.journal.title
Biochemical Engineering Journal  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1369703X14001582  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.bej.2014.06.006