Fragmentation of platymonas subcordiformis in anaerobic environment and effect on hydrogenase activity

Fei Yan, Zhao'an Chen, Hongbin Lu, Xingju Yu, Meifang Jin, Wei Zhang

Research output: Contribution to journalArticle

Abstract

To isolate and purify dissolvable hydrogenase in Platymonas subcordiformis cells, the scheme for alga cell fragmentation is designed in anaerobic environment, and the effects of experimental conditions on the hydrogenase activity are investigated. By means of ultrasonication, the concentration of total protein approaches to 2.73 g/L under the condition of 400 W output power, 5 s crushing time, 10 s interval for 20 times. The efficiency of hydrogenase isolation gets higher in case of glass beads or 0.2%(volume fraction) Triton X-100 to break up fresh cells to obtain 1.44 U/g and 1.27 U/g respectively, while the other proteins get less in crude extract by Triton X-100 method, which is suggested to gain enough purified hydrogenase.

Original languageEnglish
Pages (from-to)497-500
Number of pages4
JournalHsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University
Volume42
Issue number4
Publication statusPublished - 1 Apr 2008
Externally publishedYes

Keywords

  • Cell fragmentation
  • Hydrogenase activity
  • Platymonas subcordiformis
  • Total protein concentration

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