Deck D Flashcards
1
Q
Two reasons why many synthetic ad herbal drugs posses the problem of poor bioavailability.
A
Very low water solubility
Poor permeation through the biological membrane
2
Q
Why is it difficult for most bioactive molecules of plants to pass through the lipid-rich biological membrane and be absorbed by humans?
A
Large molecular weight
Low lipid solubility
3
Q
Liposomes vs. Phystosomes (4)
A
- Liposomes»_space; Phytosomes
- Phytosomes form new bonds
- Liposomes have 100s-1000s of PC molecules vs. 1:1 or 2:1 for phytosomes
- Liposomes surround ingredients while phytosomes anchor them to the polar head of the phospholid by chemical bonding.
