화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2008년 가을 (10/23 ~ 10/24, 부산 BEXCO)
권호 14권 2호, p.2752
발표분야 생물화공
제목 Optimization of lipase-catalyzed glucose ester synthesis in ionic liquids
초록 Lipase-catalyzed esterification of glucose with fatty acids in ionic liquids (ILs) mixtures was investigated by using supersaturated glucose solution.The effect of ILs mixtures ratio, substrate ratio, water content, lipase content, and temperature on the activity and stability of lipase was also studied. The highest yield of sugar ester was obtained in a 1-butyl-3-methylimidazolium trifluoromethanesulfonate ([Bmim][TfO]) and 1-octyl-3-methylimidazolium bis[(trifluoromethyl)sulfonyl]amide ([Omim][Tf2N] mixture (9:1, v/v), while Novozym 435 showed the optimal stability and activity in the mixture of [Bmim][TfO]:[Omim][Tf2N] 1:1. Reuse of lipase and ILs was successfully carried out with optimized reaction conditions. After5 times reuse of Novozym 435 and ILs, 78% of initial activity was remained.
저자 힙민응웬, 하성호, 구윤모
소속 인하대
키워드 Ionic liquids; Ionic liquids mixtures; Glucose ester; Lipase; Supersaturation; Water
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