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Enhanced hydrogen production by Rhodopseudomonas palustris CQK 01 with ultra-sonication pretreatment in batch culture

  • Xun Zhu
  • , Xuewang Xie
  • , Qiang Liao
  • , Yongzhong Wang
  • , Duujong Lee

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Abstract

In the present study, the photo-hydrogen production performances by Rhodopseudomonas palustris CQK 01 growing from the inoculated cells with ultra-sonication pretreatment (R. palustris CQK 01-USP) were experimentally investigated in batch culture and compared with that without pretreatment (R. palustris CQK 01-NP). It was found that the ultra-sonication pretreatment modified membrane morphology and broke up part of the cells, resulting in improvement of membrane permeability and bacterial activities and hence, helping the improvement of hydrogen production. The hydrogen production rate, hydrogen yield and energy conversion efficiency with R. palustris CQK 01-USP were increased to be nearly 2 times higher than that with R. palustris CQK 01-NP. The parametric study showed that under the conditions of initial glucose concentration 50mmol/l, inoculum size 12%, illumination wavelength 590nm, the photobioreactor with R. palustris CQK 01-USP obtained the optimal hydrogen production rate 0.54mmol/l/h, hydrogen yield 1.2mol-H 2/mol-glucose and energy conversion efficiency 9.03%. © 2011 Elsevier Ltd.
Original languageEnglish
Pages (from-to)8696-8699
JournalBioresource Technology
Volume102
Issue number18
DOIs
Publication statusPublished - Sept 2011
Externally publishedYes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Research Keywords

  • Hydrogen production
  • Illumination
  • Photosynthetic bacteria
  • Transmembrane transportation
  • Ultra-sonication pretreatment

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