glycosides Flashcards
1
Q
nature of glycoside
A
sugar part and non-sugar part
2
Q
glycone
A
sugar part
3
Q
non-sugar part
A
Aglycone unites; active (drug) portion
4
Q
4 different bonds
A
O, C, S, N
5
Q
natural sources
A
licorice, citrus, aloe, animals
6
Q
importance to plant
A
protection, or
food, growth, attract pollinators
7
Q
physical properties
A
crystalline and amphorous solids, non volatile
8
Q
solubility
A
water soluble
9
Q
taste
A
bitter
10
Q
odour
A
mostly odourless
11
Q
hydrolysis methods
A
- using mineral acids and temperature
- enzymes
- alkali hydrolysis *opens lactone ring
12
Q
types of classification
A
- linkage
- nature of glycone
- Therapeutic properties; laxative, painkiller, anti inflam.
- nature of aglycone
