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Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film Co Ltd
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Filing date
Publication date
Application filed by Fuji Photo Film Co LtdfiledCriticalFuji Photo Film Co Ltd
Priority to JP5430179ApriorityCriticalpatent/JPS55148088A/en
Publication of JPS55148088ApublicationCriticalpatent/JPS55148088A/en
Immobilizing And Processing Of Enzymes And Microorganisms
(AREA)
Enzymes And Modification Thereof
(AREA)
Abstract
PURPOSE: A microcapsule containing asparaginase having improved ability to hydrolyze asparagine and a great asparaginase activity, prepared by using a polyurethane obtained from the reaction product between a polyfunctional isocyanate and water as a capsule wall.
CONSTITUTION: A polyfunctional isocyanate or its adduct with a polyamine or polyol or both are dissolved in a water-immiscible organic solvent, e.g. toluene or ethyl acetate, and an aqueous liquid wherein asparaginase is dissolved or dispersed is emulsified or dispersed in the solution. A interface reaction of the isocyanate or/ and its adduct with water is initiated to form a capsule wall.
Process for the preparation of organic polyisocyanates containing biuret and/or urea groups, as well as dispersions of polyisocyanates containing urea groups in a diisocyanate free of urea
Herbicides containing as active substance derivatives of 2-/2-substituated benzoil/-4-/substituated oxi or tio/-1,3-cyclohexan dion and process for production of the active substances