***Primary metabolite versus Secondary metabolite: -Distribution: -Pharmacological action: - Scheme for biosynthetic pathway.

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Primary metabolite versus Secondary
metabolite-Distribution-Pharmacological
action- Scheme for biosynthetic pathway.
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H2O CO2
hv
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Glycosides Definition -Physicochemical
properties physical state, optical activity,
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-Solubility, extraction. -Enzyme
deactivation.
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-Significance in plant -Nomenclature
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Amygdalase
H
glc
Prunasin
Amygdalin
Prunase
glc
HCN (g)
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Classification A)- According to the
linkage B)- According to botanical
source .
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C)- According to the sugar type. D)- According
to the aglycone type. E)- According to the
pharmacological action F)- According to the
configuration
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G)- According to the metabolic origin
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Phenolic glycosides -Flavonoid, isoflavonids,
anthocyanins,lignans -Anthraquinone -Coumarins

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Coumarin
Anthraquinone
Flavonoid
Anthocyanin
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Pharmacological action -Stimulant laxative
increasing contractility of colonic muscle and
subsequently facilitate evacuation of colonic
content Medicinal uses -Acute
constipation. -Presurgery. -Preoperative.