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. 2021 Sep 14;6(5):e00558-21. doi: 10.1128/mSystems.00558-21

FIG 1.

FIG 1

NO impact on the human gut ecosystem fermentation activities. The impact of 10 μM and 100 μM NO administered in 3 pulses on two fecal microbiota (FM1 and FM2) was measured in terms of redox potential (A), SCFA production (B), gas (O2, CH4, N2, CO2, H2) proportions (C), and collected gas volume (D). NO concentration was indirectly assessed through the measurement of total accumulated nitrite by the Griess reagent system (E).