galacturonate fermenting enrichment culture Metagenomic assembly. bioreactor metagenome

This first study on D-galacturonate metabolism by open, mixed cultures under anaerobic, D-galacturonate-limited chemostat conditions at pH 8 shows a stable and efficient fermentation of D-galacturonate into acetate as the dominant organic fermentation product. This fermentation stoichiometry and population analyses provide a valuable baseline for interpretation of the conversion of pectin-rich agricultural feedstocks by mixed microbial cultures. Moreover, the results of this study provide a reference for studies on microbial metabolism of D-galacturonate under different cultivation regimes.