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has been cited by the following article:

• TITLE: A Study on Ethanolysis and Methanolysis of Coconut Oil for Enzymatically Catalyzed Production of Biodiesel

  AUTHORS: Livia M. O. Ribeiro, Albanise E. Silva, Margarete C. S. Silva, Renata M. R. G. Almeida

  KEYWORDS: Biodiesel, Methanol, Ethanol, Lipases

  JOURNAL NAME: Journal of Sustainable Bioenergy Systems, Vol.4 No.4, November 18, 2014

  ABSTRACT: Biodiesel production by enzymatic catalysis has been the subject of much research for developing processes that can potentially compete with other types of catalysis. The objective of this study was to investigate the variables that influenced the transesterification of coconut oil catalyzed by immobilized lipase for biodiesel production. A full 24 factorial design with the variables tempera-ture (40°C - 60°C), enzyme concentration (3% - 7%), oil-ethanol ratio (1:6 - 1:10) and alcohol type (methanol-ethanol) was performed. The best conversion result (80.5%) was obtained using ethanol with a higher temperature, molar ratio and enzyme concentration. The obtained yields showed that the results attained with ethanol were more significant when compared with methanol.