Abstract
Immobilized cells cover a wide area of applications and are essential components of many biotechnological processes. In general it can be distinguished between two immobilization methods: (1) entrapment into polymers and (2) natural adsorption onto porous and inert support materials. The immobilization by adsorption is discussed by the following criteria: biomass loading, strength of adhesion, enzymatic stability/specific activity of the biocatalyst, effectivity/reaction engineering and operational stability.
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