These are non-volatile products of plants from which they exclude naturally or can be obtained by incision or infection. They are insoluble in water but soluble in organic solvents. They are mixtures of compounds typically including flavanoids, terpenoids and fatty substances.
Resins are produced in specialized surface glands or ducts. They are more common in gymnosperms and dicotyledons than in monocotyledons.
Example of Resin Yielding trees (Source Plant)
Resin
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Source Plant
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Dammar gum
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Members of Dipterocarpaceae
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Frankincense
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Boswellia sacra
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Galbanum
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Hashish
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Cannabis indica
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