Document Detail


Production of bio-fuels (hydrogen and lipids) through a photofermentation process.
MedLine Citation:
PMID:  20060291     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The purple non-sulfur photosynthetic bacteria Rhodopseudomonas palustris (strain 42OL) was investigated for a co-production of both bio-H(2) and biodiesel (lipids). The investigation was carried out using malic and glutamic acids in a fed-batch cultivation system under continuous irradiances of 36, 56, 75, 151, 320, 500, and 803 W m(-2). Boltzmann's sigmoidal regression model was used to determine growth kinetic parameters during hydrogen photoevolution. The upper limit of volumetric hydrogen photoevolution was 15.5 + or - 0.9 ml l(-1) h(-1). During the entire cultivation period (408 h), the highest average hydrogen production rate (HPR(av)) of 11.1 + or - 3.1 ml l(-1) h(-1) was achieved at an irradiance of 320 W m(-2). Biomasses stored at the end of each experimental set were analyzed in order to determine lipid content, which ranged from a minimum of 22 + or - 1% to a maximum of 39 + or - 2% of biomass dry weight.
Authors:
Pietro Carlozzi; Arianna Buccioni; Sara Minieri; Benjamin Pushparaj; Raffaella Piccardi; Alba Ena; Cristina Pintucci
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-01-08
Journal Detail:
Title:  Bioresource technology     Volume:  101     ISSN:  1873-2976     ISO Abbreviation:  Bioresour. Technol.     Publication Date:  2010 May 
Date Detail:
Created Date:  2010-02-03     Completed Date:  2010-04-13     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9889523     Medline TA:  Bioresour Technol     Country:  England    
Other Details:
Languages:  eng     Pagination:  3115-20     Citation Subset:  IM    
Copyright Information:
Copyright 2009 Elsevier Ltd. All rights reserved.
Affiliation:
Istituto per lo Studio degli Ecosistemi, Sede di Firenze, Consiglio Nazionale delle Ricerche, Polo Scientifico, Via Madonna del Piano n. 10, 50019 Sesto Fiorentino, Firenze, Italy. p.carlozzi@ise.cnr.it
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MeSH Terms
Descriptor/Qualifier:
Biofuels*
Biomass
Fermentation / radiation effects*
Hydrogen / metabolism*
Kinetics
Light*
Lipid Metabolism / radiation effects*
Photobiology / methods*
Regression Analysis
Rhodopseudomonas / growth & development,  metabolism
Time Factors
Chemical
Reg. No./Substance:
0/Biofuels; 1333-74-0/Hydrogen

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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