Maximizing content of Omega-3 (EPA and DHA) in the process of enzymatic acidolysis of canola oil and concentrated of long-chain polyunsaturated fatty acids (LCPUFA) in supercritical CO2 conditions

The aim of this study was to optimize the content of EPA and DHA in the process of enzymatic acidolysis of canola oil and concentrated of long-chain polyunsaturated fatty acids (LCPUFA) in structured triacylglycerols (TAGs). For this purpose, nonspecific lipase B from Candida antarctica immobilized...

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Bibliographic Details
Published in:Scientia agropecuaria
Main Authors: Cedano, José, Rodríguez, Alicia, Siche, Raúl
Format: Article in Journal/Newspaper
Language:English
Published: Universidad Nacional de Trujillo 2016
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Online Access:http://www.revistas.unitru.edu.pe/index.php/scientiaagrop/article/view/1040
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Summary:The aim of this study was to optimize the content of EPA and DHA in the process of enzymatic acidolysis of canola oil and concentrated of long-chain polyunsaturated fatty acids (LCPUFA) in structured triacylglycerols (TAGs). For this purpose, nonspecific lipase B from Candida antarctica immobilized in a supercritical CO2 was used. Crude salmon oil obtained from the industrial byproducts was used to obtain LCPUFA concentrate. Initially, a LCPUFAs concentrate was obtained by basic hydrolysis and posterior complexation with urea. Subsequently the process variables were optimized enzymatic acidolysis were optimized using a central composite rotational design 25-1 + star, with 5 factors and 30 experimental trials, based on the response surface methodology. The optimal conditions that maximized the content of EPA and DHA to 3.92 g/100 g TFA and 9.09 g/100 g TFA, respectively in the purified TAGs corresponded to a LCPUFA percentage 71.71% and canola oil percentage 28.29%, temperature 57.8 °C, pressure 172.0 bar, time 23.97 h enzyme percentage of 7.74%. El objetivo del presente trabajo fue optimizar el contenido de ácidos grasos EPA y DHA en el proceso de acidólisis enzimática de aceite de canola y concentrado de ácidos grasos poliinsaturados de cadena larga (AGPICL) en triacilglicéridos estructurados (TAGs). Para ello, se empleó lipasa B inespecífica de Candida antarctica inmovilizada en condiciones CO2 supercrítico. El aceite crudo de salmón obtenido a partir de los subproductos industriales se utilizó para obtener concentrados de AGPICL. Como primer paso, se obtuvo un concentrado de AGPICL mediante una hidrolisis básica y posterior complejación con urea. Posteriormente se optimizó las variables del proceso de acidólisis enzimática mediante un diseño compuesto central rotacional 25-1 más estrella, de 5 factores con 30 ensayos experimentales, basado en la metodología superficie respuesta. Las condiciones óptimas que maximizaron el contenido de EPA a 3,92 g/100 g de ácidos grasos totales (AGT) y de DHA a 9,09 g/100 g ...