초록 |
In this study, transesterification and esterification were investigatedbychemical and enzymaticcatalysts. In case of chemical catalyst, optimal conditions such as temperature, agitation speed andcatalyst concentration were determined to be 80℃, 300 rpm, 1% of NaOH, respectively.And then conversion yield reachedover 96% at 50 min. Moreover, in case of enzymatic process optimal conditions such as temperature, agitation speed, water contents and enzyme concentration were determined to be 45℃, 250 rpm, 10% of water and 20% of immobilized lipases, respectively. The maximum conversion yield was 98 % at 4 h. |