Abstract
AbstractMalic enzyme (EC 1.1.1.39) and alanine dehydrogenase (EC 1.4.1.1) were entrap‐immobilized on hybrid gel fibers of cellulose acetate (CA) and zirconium (Zr) alkoxide by air‐gap wet spinning. The production of L‐alanine from malic acid with coenzyme regeneration was examined with the enzymes immobilized on the fibers. The productivity of L‐alanine of the immobilized enzymes decreased to approximately one‐fifth of that of free enzymes, but the CA–Zr‐fiber‐immobilized enzymes retained a high level of productivity after repeated use. Reduced form of nicotinamide adenine dinucleotide (NADH) recycling also occurred effectively for the enzymes immobilized on the fiber. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010
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