Polyethylene Glycol-Modified Lipase Soluble and Active in Organic Solvents

Abstract
A new approach in biotechnological processes is to use lipase modified with polyethylene glycol(PEG) which has both hydrophilic and hydrophobic properties. The PEG-lipase is soluble in organic solvents such as benzene and chlorinated hydrocarbons and exhibits high enzymic activity in organic solvents. The PEG-lipase catalyses the reverse reaction of hydrolysis in organic solvents; ester synthesis and ester exchange reactions. The PEG-lipase can also be conjugated to magnetite (Fe3O4). The magnetic lipase catalyses ester synthesis in organic solvents and can be readily recovered by magnetic force without loss of enzymic activity.
Keywords