functional groups part 2

Question 1

Pinene is an example of what type of terpene?

Answer 1

bicyclic

Question 2

How many isomers does pinene have and why?

Answer 2

2 isomers, the ring structure prevents more than 2.

Question 3

Ambergis is a product of terpene…

Answer 3

degradation

Question 4

why is vanillin not used in soaps

Answer 4

because it is unstable

Question 5

Phenethyl alcohol is popular for use in soaps as it is…

Answer 5

stable and has antimicrobial properties

Question 6

example of a toxic aromatic compound

Answer 6

Wintergreen oil

Question 7

what odour do esters typically have?

Answer 7

fruity scent

Question 8

ethyl butyrate smells like

pineapples but the hydrolysed product is butyric acid which smells like…

Answer 8

rancid butter

Question 9

lactones are …. esters

Answer 9

cyclic

Question 10

lactones smell like

Answer 10

fruit, and unfermented and fermented dairy products.

Question 11

define fixative

Answer 11

holds back more volatile aroma compounds, roles in blending ie musks

Question 12

Macrocyclic lactone odour?

Answer 12

have animal origins, musk etc

Question 13

aldehyde odour

Answer 13

green smell, freshly cut grass

Question 14

carboxylic acid odour

Answer 14

cheesy or sweaty smell

Question 15

Sulphur containing compounds odour

Answer 15

Quite volatile ; Smell of ocean

Question 16

nitrogen compound containing vegetable that does not smell unpleasant?

Answer 16

bell pepper, green note

Question 17

Amine aroma compounds odour

Answer 17

Smell of garbage

Rotting flesh smell, fecal