Kaladana consists of the dried ripe seeds of Ipomoea hederacea L., belonging to Family Convolvulaceae.
KALADANA
Synonyms
Mirchi (Hindi), Krishnabija (Sanskrit).
Biological Source
Kaladana consists of the dried ripe seeds of Ipomoea hederacea L., belonging to
Family Convolvulaceae.
Geographical Source
It grows throughout India both cultivated and apparently
wild, up to 2,000 metres in the Himalayas.
Characteristics
The seeds are 5–6 mm long, 3.7 mm wide, triangular, brownish
black in colour. Each seed has two flat faces joining at an angle of 60° to
80°. At the base of joint there is a cordate hilum. Testa is dull black, hard,
smooth, and glabrous. Taste is first sweetish then acrid.
Chemical Constituents
Drug contains resin (about 15%), mucilage, fixed oil, and
saponin. Hydrolysis of the resin affords hydroxypalmitic acid and sugar.
Lysergol, hederaceterpenol, hederaceteriol, hederaterpenoside, β-sitosterol glucopyranoside, and chanoclavine are also
present in Kaladana.
The seed oil is composed of glycerides of palmitic, stearic
(20.3%), arachidic, oleic (43.9%), linoleic (14.5%), and linolenic acids.
Uses
Kaladana is used as purgative and substituted for Jalap.
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