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Figure 3 | Microbial Cell Factories

Figure 3

From: Role of bicarbonate as a pH buffer and electron sink in microbial dechlorination of chloroethenes

Figure 3

Distribution of electrons fed as H 2 towards dechlorination, methanogenesis, and homoacetogenesis at various HCO 3 concentrations. (A) Average data from triplicate cultures on day 12 after addition of 16.4 me- equiv. H2 (8.2 mmol L−1). (B) Average final data from triplicate cultures after addition of 33 me- equivalents (16.4 mmol L−1 H2 in 2.5 mM HCO3 & HEPES and 5 mM HCO3 & HEPES) and 49 me- equivalents (32.8 mmol L−1 in all other sets). The presence of the additional buffer, HEPES, is denoted as H on the X-axis.

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