Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 496636
Title Continuous xylose fermentation by Clostridium acetobutylicum - Assessment of solventogenic kinetics
Author(s) Procentese, Alessandra; Raganati, Francesca; Olivieri, Giuseppe; Russo, Maria Elena; Salatino, Piero; Marzocchella, Antonio
Source Bioresource Technology 192 (2015). - ISSN 0960-8524 - p. 142 - 148.
DOI http://dx.doi.org/10.1016/j.biortech.2015.05.041
Department(s) Bioprocess Engineering
Publication type Refereed Article in a scientific journal
Publication year 2015
Keyword(s) Butanol - Clostridium acetobutylicum - Kinetic model - Solventogenesis - Xylose
Abstract

This work deals with the specific butanol production rate of Clostridium acetobutylicum using xylose - a relevant fraction of lignocellulosic feedstock for biofuel production - as carbon source. The tests were carried out in a CSTR equipped with a microfiltration unit. The dilution rate (D) ranged between 0.02 and 0.22h-1 and the ratio R between the permeate stream rate and the stream fed to the reactor ranged between 14% and 88%. The biomass present in the broth was identified as a heterogeneous cell population consisting of: acidogenic cells, solventogenic cells and spores. The results were processed to assess the concentration of acidogenic cells, solventogenic cells and spores. The specific butanol production rate was also assessed. The max butanol productivity was 1.3 gL-1h-1 at D=0.17h-1 and R=30%. A comparison between the results reported in a previous work carried out with lactose was made.

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