Inhibition of growth of Zymomonas mobilis by model compounds found in lignocellulosic hydrolysates.

ABSTRACT:

Background

During the pretreatment of biomass feedstocks and subsequent conditioning prior to saccharification, many toxic compounds are produced or introduced which inhibit microbial growth and in many cases, production of ethanol. An understanding of the toxic effects of compounds found in hydrolysate is critical to improving sugar utilization and ethanol yields in the fermentation process. In this study, we established a useful tool for surveying hydrolysate toxicity by measuring growth rates in the presence of toxic compounds, and examined the effects of selected model inhibitors of aldehydes, organic and inorganic acids (along with various cations), and alcohols on growth of Zymomonas mobilis 8b (a ZM4 derivative) using glucose or xylose as the carbon source.

Results

To

SUBMITTER: Franden MA 

PROVIDER: S-EPMC3716709 | biostudies-literature | 2013 Jul

REPOSITORIES: biostudies-literature