4. Conclusions
Enzymatic transesterification of triglycerides offers an environ-
mentally more attractive option to the conventional physio-
chemical process. The key step in enzymatic processes lies in
successful immobilization of the enzyme which will allow for
its recovery and reuse. In this study the immobilized enzyme
transesterification of soybean oil with methanol and ethanol
was investigated. Lipase Candida Rugosa was immobilized
by entrapment within a activated carbon which was prepared
by activation physical. The immobilized lipase so prepared
was consistently more active than the free lipase toward the
transesterification of palm oil. The immobilized lipase also
proved to be stable and lost little activity when was subjected
to repeated uses. The flow microcalorimetry is a technical no-
vel for followed of transesterification of oil palm process.