Effects of Nitrogen and Phosphorus on Poly-β-Hydroxyalkanoate Production by Ralstonia eutropha

Shwu-Tzy Wu ； Chun-Chia Huang ； Shih-Tsung Yu ； Jui-Rze Too

《Journal of the Chinese Institute of Chemical Engineers》 37卷5期 (2006/09) Pp. 501-508

https://doi.org/10.6967/JCICE.200609.0501

並列摘要

In this study, the influence of substrate-limited media (nitrogen or phosphorus) on Ralstonia eutropha (ATCC 17699) growth and poly-hydroxybutyrate (PHB) production in a batch fermenter at various temperatures (26, 30 and 35℃) was explored. The intracellular PHB yields of bacteria using different limiting substrates were compared. The Ralstonia eutropha had a significantly shortened generation time at higher temperatures (between 26 and 35℃), regardless of the limiting media used. In both limiting media, the PHB accumulation was the highest when the temperature was 35℃. The highest ratios of PHB to biomass in the nitrogen-limiting medium and in the phosphorus-limiting medium were 66.1% and 43.1%, respectively.

並列關鍵字

Ralstonia eutropha ； Limiting substrate ； PHB