Product Description
Dextranase is also named α-glucanase, produced by submerged fermentation of Aspergillus oryzae followed by purification and formulation. The enzyme hydrolyzes the α-1, 6-glucosidic bonds in the dextran molecule.
Mechanism
Dextranase is a hydrolase for specifically splitting α-1, 6-glucosidic linkages in the dextran molecule, producing mainly isomaltose, isomalto-oligosaccharides, and glucose.
During sugar processing, Leuconostoc, Mesenteroides, Streptococcus, and other microorganisms are commonly found as contaminants, leading to the generation of high molecular viscous dextran, which presents difficulties in processing, resulting in yield loss and sugar quality problems. Dextranase helps a lot to overcome these problems by getting rid of the dextran.
Product Standard
| No. | ITEMS | INDEX | |
| 1 | Bulk density/(g/ml) | 1.05-1.20 | |
| 2 | pH/(25℃) | 3.5-5.5 | |
| 3 | Lead/(mg/kg) | ≤5.0 | |
| 4 | Arsenic/(mg/kg) | ≤3.0 | |
| 5 | Total viable count/(CFU/mL) | ≤50000 | |
| 6 | Coliform Bacteria/(CFU/mL) | ≤30 | |
| 7 | Escherichia coli | (CFU/mL) | <10 |
| (MPN/mL) | ≤3.0 | ||
| 8 | Salmonella/(25mL) | Not Detected |
Reaction Parameters
| CONDITION | RANGE |
| Activity Temperature | 30℃-70℃ |
| Optimum Temperature | 50℃-60℃ |
| Activity pH | 3.0-6.0 |
| Optimum pH | 4.0-5.0 |
Recommended Dosage
The recommended dosage is 5-100g/t DS. The dosage has to be optimized based on each application, the raw material specifications, product expectations, and processing parameters. It is better to begin the test with the convenient volume.
Safety
Enzyme preparations are proteins that may induce sensitization and cause allergic-type symptoms in susceptible individuals. Prolonged contact may cause minor irritation for skin, eyes, or nasal mucosa. Any direct contact with the human body should be avoided. If irritation or allergic response for skin or eyes develops, please consult a doctor.
Package
1 kg / bag
Storage
Keep sealed in a dry and cool place and avoid direct sunlight. Slight sedimentation is acceptable since it will not impact the performance of the product.
Shelf Life
12 months in a dry and cool place.
