Anthraquinones Flashcards
Scientific name - rhubarb
Rheum officinale, Rheum rhaponticum, Rheum palmatum
Family - rhubarb
Polygonaceae
Constituents (3) - rhubarb
Rhein anthrones (2.2%), glucorhein, glucogallic acid
Adulterant for rhapontic rhubarb
Rhaponticin
Which rhubarb variety has a rhanponticin adulterant?
Rhapontic rhubarb
T or F: rhaponticin gives a blue fluorescence under light
t
What is a macroscopic evaluation to determine a certain rhubarb variety?
Fluoresence test (blue fluorescence for rhaponticin of rhapontic rhubarb)
3 types of rhubarb
High-grade (Chinghai, Shensi-type), Medium-grade (Canton-type), Third grade
Use - rhubarb
Kidney stones, Jaundice
Part used - senna
Dried leaflets
Scientific name - senna
Cassia angustifolia (Tinnevelly senna), Cassia acutifolia (Alexandria senna)
Ways to differentiate between the 2 sennas
MgOAc in daylight, Filtered UV
w/ MgOAc in Daylight: Alexandria
Pink
w/ MgOAc in Daylight: Tinnevelly
Orange
Filtered UV: Alexandria
Green-orange
Filtered UV: Tinnevelly
Yellow-green
Family - senna
Fabaceae
Constituents - senna
Sennosides A and B (major), sennosides C and D (minor)
What type of anthraquinone glycoside are the components of senna?
Dianthrone glycoside
Use - senna
Very potent cathartic (more than sacred bark) - due to 2 anthrones
Where is senna cultivated?
Wetlands
T or F: senna resembles rice paddies and are successor to rice
T
Senna resembles what?
Rice paddies
Senna is a successor to what?
Rice