Effects of Incubation Conditions on the Release of a Recombinant Product in Immobilized Escherichia coli Cells
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概要
- 論文の詳細を見る
Recombinant Escherichia coli cells which produce a thermostable α-amylase were immobilized in a κ-carrageenan gel and the effects of incubation conditions on release of the enzyme in a glycine supplemented growth medium were investigated using a T-shape flask and a bioreactor. Glycine promoted the release of the enzyme during T-shape flask cultivation, although the viability of the immobilized cells was reduced significantly with an increase in glycine concentration. In the presence of 1% glycine, maximum enzyme release from the free cells occurred at pH 6.5,while the increase in the initial pH promoted release of the enzyme from the immobilized cells and increased the viability of the cells in the beads. Although the enzyme release in the bioreactor under pH control was faster at higher pH, the optimum condition was obtained with the pH controlled at 7-7.5,because enzyme stability was lower at higher pH values.
- 社団法人日本生物工学会の論文
- 1995-12-25
著者
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ARIGA OSAMU
Department of Fine Material Engineering, Faculty of Texile Science and Technology, Shinshu Universit
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SANO YOSHIKI
Department of Fine Material Engineering, Faculty of Texile Science and Technology, Shinshu Universit
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Ariga O
Shinshu Univ. Nagano Jpn
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Ariga Osamu
Department Of Fine Material Engineering Faculty Of Texile Science And Technology Shinshu University
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Sano Y
Shinshu Univ. Nagano Jpn
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Sano Y
Department Of Fine Material Engineering Faculty Of Texile Science And Technology Shinshu University
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Sano Yoshiki
Department Of Fine Material Engineering Faculty Of Texile Science And Technology Shinshu University
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TOYOFUKU HISASHI
Department of Fine Materials Engineering, Faculty of Textile Science and Technology, Shinshu Univers
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MATSUDAIRA KAZUYUKI
Department of Fine Materials Engineering, Faculty of Textile Science and Technology, Shinshu Univers
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KUROIWA IWAO
Tiyoda Manufacturing Co. Ltd.,
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Kuroiwa Iwao
Tiyoda Manufacturing Co. Ltd.
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Toyofuku Hisashi
Department Of Fine Materials Engineering Faculty Of Textile Science And Technology Shinshu Universit
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Matsudaira Kazuyuki
Department Of Fine Materials Engineering Faculty Of Textile Science And Technology Shinshu Universit
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ARIGA OSAMU
Department of Chemical Engineering, Faculty of Engineering, Nagoya University
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