TABLE 5.
Fibrolytic enzyme activities of newly isolated strains B76 and R-25 belonging to the U2 group
| Strain | Enzyme activity (U/mg of protein)a |
||||
|---|---|---|---|---|---|
| Carboxymethylcellulase | Xylanase | Cellobiohydrolase | α-l-Arabinofuranosidase | β-Glucosidase | |
| B76 | ND | 48.8 A | ND | 9.3 B | ND |
| R-25 | 3.1 | 1.2 C | ND | 19.5 A | ND |
| B. fibrisolvens H17c | 2.3 | 14.3 B | 2.4 | 5.0 B | 1.2 |
a
One unit of enzyme activity was defined as 1 nmol of sugar or p-nitrophenol formed per min. Within a column, means followed by different capital letters differed significantly (P < 0.05). ND, not detected. The activities of β-xylosidase and acetylesterase were not detected in the two newly isolated strains.