Immobilising Enzymes Flashcards
1
Q
Enzymes are very…
A
Expensive and no company wants to buy them again and again
2
Q
Immobilising enzyme is a way how to…
A
Recycle used enzymes.
3
Q
Alginate beads
A
A mixture of sodium alginate solution and lactase. When drops of this solution are mixed with a calcium chloride solution, they form beads.
4
Q
The alginate holds…
A
The enzyme molecules in the beads.
5
Q
The milk passes through…
A
Alginate beads containing immobilised lactase. The final product is lactose-free milk
6
Q
The beads must be separated from…
A
the calcium chloride solution and washed by a fresh water.
7
Q
Advantages of immobilising enzymes:
A
- the product is enzyme free, so no purification is needed
- reduced costs
- more thermostable-works at a higher temperature
- works in changed pH
- the reaction can be faster
