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Response surface analysis on the effect of cell concentration and light intensity on hydrogen production by Rhodopseudomonas capsulata

Paper ID Volume ID Publish Year Pages File Format Full-Text
36552 45136 2005 7 PDF Available
Title
Response surface analysis on the effect of cell concentration and light intensity on hydrogen production by Rhodopseudomonas capsulata
Abstract

A mixture of acetate, propionate and butyrate was used as a carbon source to produce H2 by Rhodopseudomonas capsulata. The specific H2 production rate, H2 yield and light efficiency were evaluated at various levels of initial cell concentration and light intensity by applying response surface methodology. The mixture of 1.8 g/l acetate, 0.2 g/l propionate and 1.0 g/l butyrate could be readily utilized by R. capsulata for H2 production. Their consumption rate followed the order of acetate > propionate > butyrate. The response surface methodology results demonstrated the effects of initial cell concentration and light intensity as well as their interactive effects on H2 production. The optimum RH2RH2 was achieved at an initial cell concentration of 0.77 g/l and a light intensity of 4170 lux. Initial cell concentrations of 0.6–1.2 g/l and light intensities of 3000 lux or higher were suitable for H2 yield and light efficiency.

Keywords
Cell concentration; Hydrogen; Light intensity; Photosynthetic bacteria; Response surface methodology (RSM)
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Response surface analysis on the effect of cell concentration and light intensity on hydrogen production by Rhodopseudomonas capsulata
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Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 40, Issue 7, June 2005, Pages 2475–2481
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us