Feb 12, 2014
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Synonym ► Z. sativa Gaertn. Z. vulgaris Lam.

Family ► Rhamnaceae.

Habitat ► Native to North China. Also found in Punjab, Himachal Pradesh, up to 1,950 m, eastwards to West Bengal.

English ► Chinese Tsao.

Unani ► Unnaab.

Action ► Fruit—a nourishing, tonic, emollient, antitussive, antiallergic; protects liver and prevents stress ulcer formation. Seed—used for dry cough and skin eruptions. Kernel—used in insomnia. Bark—used for ulcers and wounds.

The leaves contain the flavonoids, 3-O-glucosides, rutinosides and diglu- cosides of quercetin, rhamnetin and eriodictyol, also C-glucosides. The bark yields cyclopeptide alkaloids— sativanines A, B, C-G; also alkaloids— frangulanine, nummularine B and mu- cronine D. The berries gave saponins of dammaran type, known as Sisyphus saponins; jujubosides, zizybeo- sides and zizyvyosides, together with pentacyclic triterpenoids. Flavonoids include naringenin glycosides, vomi- foloil and roseoside. (Also see WHO monograph.)

Antiallergic activity is due to high levels of both cyclic AMP and cyclic GMP in the fruit extract. Sedative activity and in vitroantitumour activity has been shown experimentally. Seed extract produces a transient fall in blood pressrue and a prolongation of thiobarbital-induced sleeping time in animals.

Article Categories:
Indian Medicinal Plants

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