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Enzymatyczna synteza estrów w środowisku rozpuszczalników organicznych. Wybrane zagadnienia
Subtitle:Enzymatic synthesis of esthers in organic solvents. Selected problems
Creator: Publisher:Komitet Biotechnologii PAN ; Instytut Chemii Bioorganicznej PAN
Date issued/created: Subject and Keywords: Abstract:Water, which is the natural environment of vital processes, is essential for lipases activity in vivo, but invitro it can be substituted by an organic solvent. Under these novel conditions lipases exhibit the ability ofesther synthesis. The replacement of water with an organic solvent is qualitatively and quantitatively limited because of chemical and physical properties of organic solvents. The qualitative limitations are theconsequence of the destruction of catalytic conformation (as a resulting from) polar reactions. The quantitative limitations are also the result of polar reactions which are indirectly expressed as the ability of an organic solvent to mix with water and are realised as the penetration of environmental ingredients to the essential water layer which covers the enzyme molecules. Both the limit and the kind of the penetrationdirectly affect the preservation of the enzyme catalytic conformation.The indispensable water layer which thermodynamically stabilizes the enzyme molecule in the environment of organic solvent is partially replaced by other environmental ingredients which form hydrogenbonds with functional and active groups of protein i.e. formamide, DMF, pyridine, that in the final consequence may cause an increase of en::> latic activity. In this paper the examples of lipases applications forsynthesis of various esthers are deser- ed.
Relation:Biotechnologia, vol.11, 1 (1991)-.
Volume: Issue: Start page: End page: Resource type: Detailed Resource Type: Format: Resource Identifier: Source:Biblioteka Instytutu Chemii Bioorganicznej PAN
Language: Language of abstract: Temporal coverage: Rights:Licencja Creative Commons Uznanie autorstwa-Na tych samych warunkach 4.0
Terms of use: Digitizing institution:Instytut Chemii Bioorganicznej Polskiej Akademii Nauk
Original in:Instytut Chemii Bioorganicznej Polskiej Akademii Nauk
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