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Aprovechamiento de residuos del desgomado de aceites: procesos de hidrólisis y generación de productos con valor agregado
(2022-03-28)
En la industria aceitera, se procesan las semillas oleaginosas, principalmente soja, separando el aceite de las harinas. Dentro de las etapas de purificación del aceite, se realiza la operación de desgomado con el fin de ...
Immobilization of CALB on activated chitosan: Application to enzymatic synthesis in supercritical and near-critical carbon dioxide
(Elsevier, 2017-03)
Enzymatic synthesis of fatty acid ethyl esters in supercritical and near-critical carbon dioxide using lipase B from Candida antarctica (CALB) immobilized onto chitosan is here investigated. The objective was to evaluate ...
Towards a green enantiomeric esterification of R/S-ketoprofen: a theoretical and experimental investigation
(Elsevier Science, 2015-08)
Methanol, ethanol, 1- and 2-propanol were used as reactants and solvents in the esterification of R/S-ketoprofen catalyzed with Novozym® 435. The interaction of the alcohols with Novozym® 435 was studied at a molecular ...
Influence of the operating conditions and the external mass transfer limitations on the synthesis of fatty acid esters using a Candida antarctica lipase
(Elsevier Science Inc, 2007-03)
The enzymatic esterification of fatty acids (mainly oleic acid) and ethanol is studied in this work. The reactions are catalyzed by commercial immobilized lipases from Candida antarctica (Novozyme 435) and are carried out ...
Biolubricant Production from Stearic Acid and Residual Secondary Alcohols: System and Reaction Design for Lipase-Catalyzed Batch and Continuous Processes
(Springer, 2021-05-19)
Six lipases were immobilized on a styrene-divinylbenzene support and evaluated on the batch esterification reaction of stearic acid with fusel oil. After a screening design, the two most appropriate lipases were assayed ...
Modelagem e simulação da produção de biossurfactante em biorrefinaria integrada biodiesel-bioetanol
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Engenharia Química - PPGEQCâmpus São Carlos, 2020-03-02)
Biosurfactants are amphipathic molecules produced by enzymatic or microbiological routes. Biosynthesis can occur by esterifying sugars with fatty acids, with lipase as the main enzyme that catalyzes the reaction. However, ...
Evaluation of enzymatic Pectin extraction by a recombinant Polygalacturonase (pgi) from apples and pears pomace of argentinean production and characterization of the extracted pectin
(OMICS Publishing Group, 2014-08)
Argentina produces, annually, 1.8 million tons of pome fruit, distributed almost equally between apple and pear. These fruits, produced in the High Valley of Río Negro are already a registered brand in the world of fruit. ...