TABLE 1.
Xylosidase and xylanase activities of R. albus strain 8 following growth in xylan-containing cultures containing either no additions (WO), PA, or 5% (vol/vol) RF
| Enzyme | Activity in medium:
|
||
|---|---|---|---|
| WO | PA | RF | |
| Xylosidasea | |||
| Cell associated | 36 ± 10.0 | 20 ± 5.0 | 15.6 ± 5.0 |
| Extracellular broth | 1.9 ± 0.3 | 3.7 ± 0.2 | 2.8 ± 0.3 |
| Xylanaseb | |||
| Cell associatedc | 0.8 ± 0.1 | 2.3 ± 0.3 | 2.5 ± 0.3 |
| Extracellular broth | 3.3 ± 0.2 | 2.0 ± 0.3 | 2.0 ± 0.3 |
a
One unit of activity is defined as 1 nmol of p-nitrophenol released per ml of culture.
b
One unit of activity is defined as 1 μmol of reducing sugar released per ml of culture.
c
Main effect of RF = PA > WO.