期刊论文详细信息
Molecules
Application of Enzymatic Extracts from a CALB Standard Strain as Biocatalyst within the Context of Conventional Biodiesel Production Optimization
Enrique D. Sancho1  Carlos Luna2  Antonio A. Romero2  Felipa M. Bautista2  Rafael Estevez2  Juan Calero2  Diego Luna2  Alejandro Posadillo3 
[1] Department of Microbiology, University of Cordoba, Campus de Rabanales, Ed. Severo Ochoa, 14014 Cordoba, Spain;Department of Organic Chemistry, University of Cordoba (UCO), Cordoba 14014, Spain;Seneca Green Catalyst S.L., Rabanales XXI/University of Cordoba, Cordoba 14014, Spain;
关键词: biodiesel;    ecodiesel;    lipases;    CALB;    enzymatic extracts;    transesterification;    glycerol;   
DOI  :  10.3390/molecules22112025
来源: DOAJ
【 摘 要 】

The application of biocatalysts in the transesterification process of triglycerides (TG) allows integrating the glycerol in the form of monoglyceride (MG), sharply increasing the yield and the environmental sustainability of the conventional biodiesel production process. This is known as Ecodiesel. To overcome the inconvenient of the high cost of the currently employed highly purified commercial enzymes, the use of scarcely purified extracts obtained from standard strains of the same species of commercial lipases currently applied in this process is being investigated. Thus, Candida antarctica type B (CALB) was chosen to determine the optimal conditions of culture of this yeast. The standard strain was obtained from the Spanish Type Microbial Cultures Collection (CECT) and has been used to carry out several studies to elucidate its optimum growth conditions. Through a process of lyophilization with prior dialysis of the liquid cultures, the enzymatic extracts were obtained. The different obtained cultures have been applied as biocatalysts in the 1,3-selective transesterification reaction of sunflower oil with ethanol to obtain Ecodiesel (FAEE + MG). Selectivity and reaction yields were obtained by gas chromatography. Acceptable yields are obtained during the reaction time as well as in successive reactions, demonstrating the feasibility of using these CALB enzymatic extracts as biocatalysts.

【 授权许可】

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