Title of article :
Production of bio-fuels (hydrogen and lipids) through a photofermentation process
Carlozzi، نويسنده , , Pietro and Buccioni، نويسنده , , Arianna and Minieri، نويسنده , , Sara and Pushparaj، نويسنده , , Benjamin and Piccardi، نويسنده , , Raffaella and Ena، نويسنده , , Alba and Pintucci، نويسنده , , Cristina، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2010
The purple non-sulfur photosynthetic bacteria Rhodopseudomonas palustris (strain 42OL) was investigated for a co-production of both bio-H2 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 (HPRav) of 11.1 ± 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 ± 1% to a maximum of 39 ± 2% of biomass dry weight.
Bio-H2 , Boltzmann’s sigmoidal regression model , biodiesel , Hydrogen production rate , Rhodopseudomonas palustris
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