Transesterification of preheated coconut oil catalyzed by Novozym® 435: potential source of biofuel
Coconut oil preheated to 180 and 250°C was subjected to transesterification reaction in the presence of ethanol, catalyzed by Novozym® 435. Preheating did not change the density, viscosity, and composition of the oil. When the reaction was performed at 70°C, approximately 74% of the organic phase rich in fatty acid ester was obtained in 8h of reaction. A decrease in acid value was also observed as the transesterification reaction progressed. The pace of the reaction was much slower when the reaction was performed at room temperature. Approximately 70% organic phase was collected after 7 days of reaction. Novozym® 435 could be recycled 3 times to perform the transesterification reaction. The amount of glycerol produced by Novozym® 435 in the 2nd cycle was comparable to that produced by the fresh beads.
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).