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Enzymatic Biodiesel Synthesis from Canola Oil in Liquid Carbon Dioxide  

Lee, Myung-Gu (Department of Chemical Engineering, Kwangwoon University)
Park, Chul-Hwan (Department of Chemical Engineering, Kwangwoon University)
Cho, Jae-Hoon (Green Engineering Team, Korea Institute of Industrial Technology (KITECH))
Lee, Jun-Hak (Green Engineering Team, Korea Institute of Industrial Technology (KITECH))
Lee, Do-Hoon (Green Engineering Team, Korea Institute of Industrial Technology (KITECH))
Kim, Sang-Yong (Green Engineering Team, Korea Institute of Industrial Technology (KITECH))
Publication Information
KSBB Journal / v.25, no.4, 2010 , pp. 337-343 More about this Journal
Abstract
It has been well known that organic solvents like t-butanol and n-hexane can protect lipases from the inhibition by short-chain alcohols in the enzymatic transesterification. However, use of the organic solvents should be minimized considering their negative effects on environment and human health. Therefore, use of the greener solvents has been pursued in various are as including the enzymatic biotranformation. In this study, the liquid carbon dioxide ($LCO_2$) was employed as an alternative media for the enzymatic transesterification of canola oil. The conversion in the $LCO_2$ was comparable with those in organic solvents and the supercritical carbon dioxide, and under optimum conditions, the value reached 99.7%. It is expected that this method can provide a new type of biodiesel production process with higher energy efficiency and lower environmental impact.
Keywords
biodiesel; lipases; organic solvent; liquid carbon dioxide; supercritical carbon dioxide;
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Times Cited By KSCI : 1  (Citation Analysis)
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