Hydrolysis of Soluble Starch by Glucoamylase Immobilized on Ceramic Monolith

Fumihide Shiraishi; Koei Kawakami; Keiichi Kato; Koichiro Kusunoki

doi:10.1252/kakoronbunshu.9.316

Hydrolysis of Soluble Starch by Glucoamylase Immobilized on Ceramic Monolith

Fumihide Shiraishi, Koei Kawakami, Keiichi Kato, Koichiro Kusunoki

Systems Biology

Research output: Contribution to journal › Article

11 Citations (Scopus)

Abstract

To evaluate the effectiveness of a ceramic monolith (mean pore diameter, 15 μm) as a support for the immobilized enzyme that catalyzes the hydrolysis of a high-molecular weight substrate, the hydrolysis of soluble starch (average molecular weight, 30 000) by use of glucoamylase from Rhizopus delemar was carried out at 50°C, pH 4.5. By observing the initial reaction rate in a batch reactor, wherein a fan-shaped piece of the immobilized enzyme monolith was fixed around a stirrer shaft, the pore diffusion resistance was found to be negligible when the concentration of starch exceeds 89 g/l. The simplified kinetic model, previously proposed, that assumed kinetic parameters as changing linearly with reduction of average molecular weight of substrate was also useful for simulating the immobilized enzyme system, regardless of batch or continuous mode, described in this paper.

Original language	English
Pages (from-to)	316-323
Number of pages	8
Journal	kagaku kogaku ronbunshu
Volume	9
Issue number	3
DOIs	https://doi.org/10.1252/kakoronbunshu.9.316
Publication status	Published - Jan 1 1983

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All Science Journal Classification (ASJC) codes

Chemistry(all)
Chemical Engineering(all)

Cite this

Shiraishi, F., Kawakami, K., Kato, K., & Kusunoki, K. (1983). Hydrolysis of Soluble Starch by Glucoamylase Immobilized on Ceramic Monolith. kagaku kogaku ronbunshu, 9(3), 316-323. https://doi.org/10.1252/kakoronbunshu.9.316

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Access to Document

10.1252/kakoronbunshu.9.316