| Hydrolysate |
---|
Microorganism | I | II | III | IV |
---|
 | IC20 (g sugars l-1)a |
C. saccharolyticus
| 5 to 7.5 | + | 7.5 to 10 | + |
T. neapolitana
| 7.5 to 10 | 7.5 | n.d. | + |
- 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.