KA5- Fragances Flashcards
1
Q
Essential oils
A
Concentrated extracts of the aroma compounds found in plants
These compounds are usually volatile and insoluble in water
Can be found in almost any part of the plant
2
Q
Terpenes
A
Compounds based on isoprene (2-methylbuta- 1,3-dine) C5H8
Family of compounds which are commonly found in essential oils
All contain isoprene units joined together
(C5H8)n n= number of terpene units joined together
3
Q
Isoprene structure
A
CH3
|
C CH2
// \ //
H2C C
H
4
Q
Number of terpene units used to form a terpene
A
Calculated by adding up the number of carbon atoms in the terpene and dividing it by 5
5
Q
Oxidation of terpenes
A
Produces many of the compounds responsible for the flavour and aroma of spices derived from plants
