Oxygen : this factor assists in the resinification of volatile oils and in the rancidification of volatile oils .

• Different mites found usually include Tyroglyphces siro ( Flour mite ) and Aleurobius farinae ( Cheese mite )

The container used for storage and its closure must not interact physically or chemically with the material within in any way which would alter its composition .

Periodic spraying of the premises with insecticides will help to prevent the spread of infestation

Each stock should be inspected regularly and the material found to be contaminated is best to be destroyed by

Moisture and heat and condition is the most suitable for the retardation of living organisms

condition is the most suitable for the retardation of living organisms

Is the important way classification

Natural products is primary metabolites

Morphine is ?

Heroine is

Chemotaxonomic depends on the family and common chemical properties

phenyl group is

phenyl propenes containe purly of an aromatic ring and saturated 3carbon chain attuched to the ring..

Simplest phenyl propene are the volatil oil expect..

Flavonid are dervied C3-C6

Citrus fruit containe

Flavononol containe OH group only

Terpenoid usually have number of such iso prene unit jounid together head to tail expect