Polyethersiloxane-coated enzyme preparations
AssigneeEvonik Degussa GmbH
InventorsOliver Thum, Marion Ansorge-Schumacher, Lars Wiemann, Michael Ferenz, Matthias Naumann
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Abstract
The invention is directed to enzyme preparations which are obtainable by providing enzyme immobilizates which comprise enzymes or microorganisms comprising enzymes immobilized on an inert support with a polyethersilicone coating obtained by hydrosilylation, to a process for preparing such enzyme preparations and to the use of enzyme preparations as an industrial biocatalyst.
Claims17
An enzyme preparation comprising:
- an enzyme immobilizate including microorganisms comprising enzymes immobilized on an inert support;
- and
- a polyethersiloxane coating located on said enzyme immobilizate, said polyethersiloxane coating is obtained by hydrosilylating Si—H-functional polysiloxanes, in which the olefinic units used are polyethers bearing at least one terminally unsaturated group, with the proviso that at least one of the polyether groups has at least two terminally unsaturated groups.
An enzyme preparation comprising:
- an enzyme immobilizate including microorganisms comprising enzymes immobilized on an inert support;
- and
- a polyethersiloxane coating located on said enzyme immobilizate, said polyethersiloxane coating is obtained by hydrosilylating Si—H-functional polysiloxanes, in which the olefinic units used are polyethers bearing at least one terminally unsaturated group and siloxanes which bear unsaturated organic radicals, with the proviso that at least one olefinic unit of at least one of said polyethers and/or said siloxanes has at least two terminally unsaturated groups.
A process for preparing an enzyme preparation, comprising coating an enzyme immobilizate which comprises microorganisms comprising enzymes immobilized on an inert support with a polyethersiloxane coating, said polyethersiloxane coating is obtained by hydrosilylating Si—H-functional polysiloxanes, in which the olefinic units used are polyethers bearing at least one terminally unsaturated group and optionally additionally siloxanes which bear terminally unsaturated organic radicals, with the proviso that at least one olefinic unit which has at least two terminally unsaturated groups is present.
Dependencies are inferred from the claim text.