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Pakistan Journal of Biological Sciences
  Year: 2009 | Volume: 12 | Issue: 18 | Page No.: 1253-1259
DOI: 10.3923/pjbs.2009.1253.1259
 
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The Effect of Aeration, Agitation and Light on Biohydrogen Production by Rhodobacter sphaeroides NCIMB 8253
S. Za`imah Syed Jaapar, M.S. Kalil and N. Anuar

Abstract: Photo fermentation is a biological process that can be applied for hydrogen production. The process is environmental friendly which is operated under mild conditions using renewable resources. In order to increase yield of H2 produced by Rhodobacter sphaeroides, some experimental factors that may enhance H2 production were studied. The effect of operating parameters including agitation, aeration and light on hydrogen production using R. sphaeroides NCIMB 8253 was investigated. Rhodobacter sphaeroides NCIMB 8253 was grown in 100 mL serum bottle containing growth medium with maliec acid as the sole organic carbon source. The cultures were incubated anaerobically at 30°C with tungsten lamp (100 W) as the light source (3.8 klux) and argon gas was purged for maintaining anaerobic condition. The results show that maximum hydrogen produced was higher (54.37 mL) in static culture with 69.98% of H2 in the total gas compared with shake culture (11.57 mL) with 57.86% of H2. By using static culture, H2 produced was five times higher compared with non-static in both aerobic and anaerobic condition. It was found that growth and H2 production with fluorescent lamp showed better results than growth and H2 production with tungsten light.
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How to cite this article:

S. Za`imah Syed Jaapar, M.S. Kalil and N. Anuar, 2009. The Effect of Aeration, Agitation and Light on Biohydrogen Production by Rhodobacter sphaeroides NCIMB 8253. Pakistan Journal of Biological Sciences, 12: 1253-1259.

DOI: 10.3923/pjbs.2009.1253.1259

URL: https://scialert.net/abstract/?doi=pjbs.2009.1253.1259
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