Efficient hydrogen production from the lignocellulosic energy crop Miscanthus by the extreme thermophilic bacteria Caldicellulosiruptor saccharolyticus and Thermotoga neapolitana

Table 3 Fermentability of Miscanthus hydrolysates by C. saccharolyticus and T. neapolitana.

^aIC₂₀, hydrolysate concentration (g monomeric sugars l^-1) at which 20% inhibition of organic acid production (acetic and lactic acid) occurred compared to a control fermentation on pure sugars; +, stimulation of organic acid production at the highest hydrolysate concentration tested (10 g monomeric sugars l^-1); n.d., not determined.
Diluted hydrolysates were tested in a concentration range. The final sugar concentration in all samples was adjusted to 10 g l^-1 by addition of pure sugars. The production of organic acids (acetate and lactate) was monitored and compared to production in the control fermentations using pure sugars.

ISSN: 2731-3654