Microcapsule Flashcards
(7 cards)
1
Q
What is a polymer?
A
a large macromolecule consisting of repeating sub-units called monomers.
2
Q
What is a block co-polymer?
A
comprised of different segment of random lengths of monomer “A” and monomer “B”, alternating along the polymer chain.
3
Q
What is the effect of cross linking?
A
more cross links = polymer becomes more dense, reduces solubility and creates more rigid structure
4
Q
What is alginate?
A
block co-polymer consisting of D-mannose and L-gulose
* the primary alcohol has been oxidized to carboxylic
5
Q
How is sodium alginate cross-linked?
A
Introduced divalent Ca to replace monovalent Na
6
Q
What enzyme is encapsulated?
A
lactase
7
Q
What is congo red used for?
A
pH indicator
