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. 2019 Apr 9;10:722. doi: 10.3389/fmicb.2019.00722

FIGURE 3.

FIGURE 3

(A) EtOH production profiles and (B) pH curves of rumen, sludge, and R + S incubated at a range of initial pH. SOC, substrate only control at initial neutral pH. The error bars represent the standard error of the mean (SE), n = 3.