Impact of bioaugmentation on biochemical methane potential for wheat straw with addition of Clostridium cellulolyticum.

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Impact of bioaugmentation on biochemical methane potential for wheat straw with addition of Clostridium cellulolyticum. / Peng, Xiaowei; Aragao, Rosa; Ivo Achu, Nges; Liu, Jing.

I: Bioresource Technology, Vol. 152, 2014, s. 567-571.

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

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TY - JOUR

T1 - Impact of bioaugmentation on biochemical methane potential for wheat straw with addition of Clostridium cellulolyticum.

AU - Peng, Xiaowei

AU - Aragao, Rosa

AU - Ivo Achu, Nges

AU - Liu, Jing

PY - 2014

Y1 - 2014

N2 - Hydrolysis is usually the rate-limited step for methane production from lignocellulosic substrate. Two bioaugmentation strategies, using the cellulolytic anaerobic bacteria Clostridium cellulolyticum, were adopted to enhance the hydrolysis of wheat straw with the purpose of improving the biochemical methane potential (BMP). Namely, the 24-h-incubated seed (C24S) with cellobiose as carbon source and the 60-h-incubated seed (WS60S) with wheat straw as carbon source were respectively used as the bioaugmentation agents. As a result, the BMPs were respectively 342.5 and 326.3mlg(-1) VS of wheat straw, with an increase of 13.0% and 7.6% comparing to the no-bioaugmentation BMP of 303.3mlg(-1) VS. The result indicates that the anaerobic digestion efficiency can be improved by bioaugmentation, which therefore may be a promising method for improving methane production from lignocellulosic substrate.

AB - Hydrolysis is usually the rate-limited step for methane production from lignocellulosic substrate. Two bioaugmentation strategies, using the cellulolytic anaerobic bacteria Clostridium cellulolyticum, were adopted to enhance the hydrolysis of wheat straw with the purpose of improving the biochemical methane potential (BMP). Namely, the 24-h-incubated seed (C24S) with cellobiose as carbon source and the 60-h-incubated seed (WS60S) with wheat straw as carbon source were respectively used as the bioaugmentation agents. As a result, the BMPs were respectively 342.5 and 326.3mlg(-1) VS of wheat straw, with an increase of 13.0% and 7.6% comparing to the no-bioaugmentation BMP of 303.3mlg(-1) VS. The result indicates that the anaerobic digestion efficiency can be improved by bioaugmentation, which therefore may be a promising method for improving methane production from lignocellulosic substrate.

U2 - 10.1016/j.biortech.2013.11.067

DO - 10.1016/j.biortech.2013.11.067

M3 - Article

VL - 152

SP - 567

EP - 571

JO - Bioresource Technology

JF - Bioresource Technology

SN - 0960-8524

ER -