한국생물공학회:학술대회논문집
- 한국생물공학회 2000년도 추계학술발표대회 및 bio-venture fair
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- Pages.297-300
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- 2000
실관 생물반응기를 이용한 푸마르산으로부터 숙신산 생물전환
Bioconversion of fumaric acid to succinic acid using hollow fiber bioreactor
초록
Succinic acid was produced by Enterococcus faecalis RKY1 cells immobilized in hollow fiber bioreactor as an alternatively immobilized culture in bioconversion of fumaric acid to succinic acid. The feed was pumped through the shell side. As the flow rate of the feed was increased, the steady state was obtained more quickly. The steady state was reached after 24 hr cultivation in 0.25 ml/min, 12 hr in 0.5 ml/min, and 9 hr in 1.0 ml/min, respectively. The effect of medium pH on succinate production was also investigated. By changing the medium pH of 8.0, the succinic acid produced was increased about 16% than that of pH 7.0.
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