Chemical procedures for enzyme immobilization on porous cellulose beads
β Scribed by Li Fu Chen; George T. Tsao
- Publisher
- John Wiley and Sons
- Year
- 1977
- Tongue
- English
- Weight
- 422 KB
- Volume
- 19
- Category
- Article
- ISSN
- 0006-3592
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## Abstract Invertase from __Candida utilis__ was immobilized on porous cellulose beads by an ionicβquanidino bond. The immobilized invertase showed optimum activity between pH 4.0 and 5.4, while the free enzyme had a sharp optimum at pH 4.1. Both temperature profiles were fairly similar up to 55Β°C
Clark et al. (1985) recently formulated a kinetic model for coupling restricted diffusion and immobilized reaction of enzyme molecules in a cylindrical pore using the concept of "pore central core restricted diffusion." This model takes into consideration the increase of diffusion resistance by t
Yields of kinetically controlled synthesis of antibiotics catalyzed by penicillin G acylase from Escherichia coli (PGA) have been greatly increased by con- tinuous extraction of water soluble products (cephalexin) away from the surroundings of the enzyme. In this way its very rapid enzymatic hydroly