| |
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.
