Production of Poly-β-Hydroxybutyrate and Measurement of Related Enzyme Activities in Alcaligenes eutrophus

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概要

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• Activities of β-ketothiolase (KT) and glucose-6-phosphate dehydrogenase (GPDH) were determined during the fermentation of Alcaligenes eutrophus NCIMB 11599 at three different values of C/N ratio. As the C/N ratio increased the cell growth decreased due to the limitation of nitrogen, while the cellular poly-β-hydroxybutyrate (PHB) content increased. At an initial C/N ratio of 32.8m the cellular PHB content reached 90.0% after 32 h cultivation. The specific activity of β-ketothiolase in each fermentation was the highest immediately after exhaustion of the nitrogen source. Specific activities of βketothiolase and glucose-6-phosphate dehydrogenase were maintained stably within the tested range of C/N ratio even after the N-source was completelt exhausted.

• 社団法人日本生物工学会の論文
• 1993-11-25

著者

• Park Y

  Kist Taejon Kor

• Park Young

  Korea Research Institute Of Bioscience And Biotechnology Kist

• Chang Ho

  Department Of Electronic Engineering Dankook University

• Choi E

  Kist Taejon Kor

• Lee I

  Kist Taejon Kor

• LEE IN

  Genetic Engineering Research Institute

• NAM SOO

  Genetic Engineering Research Institute

• CHOI EUN

  Genetic Engineering Research Institute

• PARK YOUNG

  Genetic Engineering Research Institute

• Nam S

  Kist Taejon Kor

• Chang H

  Korea Advanced Inst. Sci. And Technol. Taejon Kor

• Park Young

  Genetic Engineering Research Insitute

• Chang Ho

  Department Of Chemical Engineering And Bio Process Engineering Research Center Korea Advanced Instit

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