Johnathan Gorke, Friedrich Srienc, Romas Kazlauskas
언어
영어(ENG)
URL
https://www.earticle.net/Article/A114470
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원문정보
초록
영어
Deep eutectic solvents (DES’s) are mixtures of ammonium salts and hydrogen bond donors such as 1:2 choline chloride/urea or choline chloride/glycerol. DES’s are potential green solvents because they are nonvolatile, non-flammable, non-toxic and inexpensive. Many hydrolases are active in DES’s with rates comparable to those in toluene and up to five-fold higher than rates in typical ionic liquids. The glycerol component of the DES did not compete in the transesterification, indicating that its reactivity in ChCl:Gly is >200- fold lower than expected. Lipase from Candida antarctica was at least 20 times more stable in ChCl:U than in solutions containing the same concentrations of choline chloride and urea. We hypothesize that the hydrogen-bond network that forms between DES components decreases their reactivity. Addition of 10-25% ChCl:Gly to aqueous solutions enhanced the activity of esterases up to three-fold and of epoxide hydrolase up to 20-fold. Thus, these polar solvents are suitable candidate solvents or cosolvents for biocatalysis.
저자
Johnathan Gorke [ University of Minnesota, Department of Biochemistry, Molecular Biology and Biophysics, Department of Chemical Engineering and Materials Science, and The Biotechnology Institute, 1479 Gortner Avenue, Saint Paul, MN 55108 USA ]
Friedrich Srienc [ University of Minnesota, Department of Chemical Engineering and Materials Science, and The Biotechnology Institute, 1479 Gortner Avenue, Saint Paul, MN 55108 USA ]
Romas Kazlauskas [ University of Minnesota, Department of Biochemistry, Molecular Biology and Biophysics, Biotechnology Institute, 1479 Gortner Avenue, Saint Paul, MN 55108 USA ]
한국생물공학회 [The Korean Society for Biotechnology and Bioengineering]
설립연도
1984
분야
공학>생물공학
소개
이 법인은 생물 공학의 발전과 보급에 이바지하고, 회원 상호 간의 연구 협력과 친목을 도모함을 목적으로 한다
1. 생물공학 분야의 발전을 위한 연구 협력
2. 생물공학의 실용화를 촉진시키기 위한 산학 협동
3. 학술연구 발표회, 강연회, 연수회 등 학술활동의 개최
4. 국,영문 학술지,소식지,학술회의 Proceedings 및 학술도서의 발간
5. 생물공학 발전을 위한 정책 건의
6. 기타 국제 교류 등 본 학회의 목적 달성을 위한 제반 활동