Abstract
The use of residues from vegetable oils and animal fats is an attractive alternative for the biodiesel production with lower costs, besides providing benefits to the environment. In this study, were performed enzymatic transesterification reactions of residual chicken fat with ethanol and without the presence of co-solvents. Ten lipases were tested, and the lipase of Candida antarctica (CALB) provided the best yields. Several reaction conditions were evaluated, such as: amount of enzyme, reaction time, rotation (rpm), temperature and reuse of the biocatalyst. CALB provided a 96% yield of ethyl biodiesel with the use of 20 mg of enzyme. After 10 h of reaction the yield was higher than 90% and the rotation did not significantly influence the reaction. Temperatures up to 50 °C have been tolerated by the enzyme, and it can be reused without significative loss of yield for up to ten reaction cycles.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
