Production of bio-fuels (hydrogen and lipids) through a photofermentation process
Production of bio-fuels (hydrogen and lipids) through a photofermentation process
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DOI：
10.1016/j.biortech.2009.12.049
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发表时间：
2010-05-01
影响因子：
11.4
通讯作者：
Pintucci, Cristina
中科院分区：
文献类型：
--
作者：
Carlozzi, Pietro;Buccioni, Arianna;Pintucci, Cristina
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 +/- 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 +/- 3.1 ml l(-1) h(-1) was achieved it 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 +/- 1% to a maximum of 39 +/- 2% of biomass dry weight. (C) 2009 Elsevier Ltd. All rights reserved.
