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Table 1 Enrichment conditions based on initial pH and initial addition of acetate

From: Enrichment of syngas-converting mixed microbial consortia for ethanol production and thermodynamics-based design of enrichment strategies

Enrichment series Inoculum treatment Initial pH Syngas composition (%H2, %CO, %CO2) Co-substrate YE (g/l)
HT6 Heat-shock 5.95 ± 0.06 50%, 22.2%, 27.8%
HT5.5 Heat-shock 5.51 ± 0.09 50%, 22.2%, 27.8%
HT5 Heat-shock 5.05 ± 0.02 50%, 22.2%, 27.8%
HT5.5YE Heat-shock 5.43 ± 0.13 50%, 22.2%, 27.8% 0.5
HT5YE Heat-shock 5.02 ± 0.10 50%, 22.2%, 27.8% 0.5
NT5YE Non-treated 5.04 ± 0.13 50%, 22.2%, 27.8% 0.5
HT5YE-Ac Heat-shock 4.99 ± 0.08 50%, 22.2%, 27.8% NaCH3COO (20 mM) 0.5
  1. The pH was not stable during the course of the fermentations