Optimization of the process for biodiesel production using a mixture of immobilized Rhizopus oryzae and Candida rugosa lipases.
In this study, the enzymatic process for biodiesel production was optimized using a mixture of immobilized Rhizopus oryzae and Candida rugosa lipases. The optimal temperature and agitation speed for biodiesel production were 45oC and 300 rpm, respectively. The optimal ratio of R. oryzae and C. rugosa lipases in the mixture was 3:1 (w:w). When 3mmol of methanol was the initial reaction medium and 3mmol of methanol was added every 1.5 h during biodiesel production, biodiesel conversion was over 98% at 4 h. In addition, when the immobilized lipase mixture was reused, biodiesel conversion exceeded 80% after 5 reuses.
Lee
Jong Ho
JH
Department of Chemical and Biological Engineering, Korea University, Seoul 136-701, Korea.
Lee
Dong Hwan
DH
Lim
Jung Soo
JS
Um
Byung-Hwan
BH
Park
Chulhwan
C
Kang
Seong Woo
SW
Kim
Seung Wook
SW
D019149:Bioreactors; D002175:Candida / Q000201:enzymology*; D004736:Energy-Generating Resources; D004800:Enzymes, Immobilized / Q000378:metabolism*; D017743:Equipment Reuse; D008049:Lipase / Q000378:metabolism*; D000432:Methanol / Q000378:metabolism; D012233:Rhizopus / Q000201:enzymology*; D013024:Soybean Oil / Q000378:metabolism; D013696:Temperature
D004800:Enzymes, Immobilized; D013024:Soybean Oil; D008049:Lipase; D000432:Methanol