ナットウキナーゼの液体培養技術の最適化:実験室規模からパイロット規模へ
Shuo Zhao1,2, Zonghui Sun1, Shuang Zhao1
1College of Life Sciences, Qingdao University, Qingdao, 266071, China.
Bioprocess and biosystems engineering
|December 26, 2025
まとめ
本研究では、工業利用のためのナットウキナーゼ発酵を最適化した。スケールアップ可能な流加培養プロセスにより高いナットウキナーゼ活性が達成され、大規模生産への道が開かれた。
科学分野:
- バイオテクノロジー
- 酵素工学
- 工業微生物学
背景:
- ナットウキナーゼは納豆発酵由来の有用な酵素です。
- その生産収率と活性の最適化は、工業的応用にとって重要です。
研究 の 目的:
- ナットウキナーゼ生産のための発酵プロセスの最適化とスケールアップ。
- 工業規模の製造のための安定した制御可能なプロセスの開発。
主な方法:
- 単因子法と応答曲面法(RSM)を用いた液体発酵の最適化。
- パイロットスケール(20 L)および大規模(200 L)発酵槽での流加培養の実施。
- 大規模発酵における酸素移動効率のための革新的な戦略の開発。
主要な成果:
- 最適化されたフラスコ培養で4257 IU/mLのナットウキナーゼ活性を達成しました。
- 動的な酸素制御と供給最適化により、20 L発酵槽で23,074 IU/mLに達しました。
- 新しいスケールアップ戦略を使用して、200 L発酵槽で21,312 IU/mLを達成しました。
結論:
- 最適化されスケールアップ可能な流加培養プロセスは、ナットウキナーゼ生産を大幅に向上させます。
- 開発された方法は、工業的なナットウキナーゼ製造のための堅牢な技術的ソリューションを提供します。
- 本研究は、効率的で大規模な工業的ナットウキナーゼ生産の基礎を築きます。
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