Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Pivot Concepts:
Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Target Concepts:
Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Query: EC:3.2.1.21 (
beta-glucosidase
)
3,280
document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)
Production of a
cellobiase
-rich preparation by Aspergillus niger 1 was achieved using water hyacinth cellulose as the sole carbon source in the culture medium. Production of
cellobiase
, carboxymethylcellulase (CMC-ase) and filter paper (FP)-cellulase was favoured by controlling the pH of the culture medium during fermentation at 5.0.
Sodium citrate
(0.5%), sodium phytate (0.1%), Tween-80 (0.2%, v/v) and asparagine (0.07%) had stimulating effects on the productivity of
cellobiase
, CMC-ase and FP-cellulase. Potassium dihydrogen phosphate doubled the yield of CMC-ase but had a slight effect on FP-cellulase and
cellobiase
. Wheat bran had a pronounced stimulating effect on the production of
cellobiase
and CMC-ase. The combined effects of these stimulators resulted in an enzyme preparation rich in
cellobiase
and contained 18.5, 0.29 and 2.21 U/ml of
cellobiase
, FP-cellulase and CMC-ase, respectively. A high
cellobiase
/FP-cellulase ratio of 63.8:1 was thus obtained with the fungal enzyme preparation. The
cellobiase
activity was maximal at pH 5.0 and showed good thermostability.
...
PMID:Utilization of water hyacinth cellulose for production of cellobiase-rich preparation by Aspergillus niger 1. 855 82
