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Table 2 Enzyme levels (IU.(mg protein-1)) of key catabolic redox-dependent enzymes at steady states at different dilution rates, i.e. GAPDH, ADH, LDH and estimated activity (% of potential activity) of LDH (LDHv) under physiological conditions (Tables 3, 4) based on previously described kinetic model [23], of C. saccharolyticus cultures in the presence and absence of N2 sparging. Presented data is average of one biological and at least three technical replicates at a linear range.

From: Reassessment of hydrogen tolerance in Caldicellulosiruptor saccharolyticus

Enzyme Results obtained with and without N2 sparging at D(h-1) of:
  0.05
(100 mL/min N2)
0.15
(100 mL/min N2)
0.05
no sparging
GAPDH 3.5 1.4 1.3
ADH 0.44 0.96 1.8
LDH 1.2 2.6 8.3
LDHv 10 25 100