gave saponins—jujubosides A and B; the saponin yields the sapogenin—jujubogenin.
A variety grown in Haryana (Naazuka) contains sugars 10.5% and ascorbic acid 205 mg!100 g.
Dosage Dried fruit pulp, devoid of seed—3—6 g; stem bark—3— 5 g powder, 10—20 g for decoction. (API, Vol. III.)
Ziziphus jujuba Mill.
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, 3-0-glucosides, rutinosides and diglu coside
of quercetin, rhamnetin and eriodictyol, also C-glucosides. The bark yields cyclopeptide alkaloids— sativanines A, B, C-G; also alkaloids— frangulanine, nummularine B and mucronine D. The berries gave saponins of dammaran type, known as Sisyphus saponins; jujubosides, zizybeosides and zizyvyosides, together with pentacyclic triterpenoids. Flavonoids include naringenin glycosides, vomifoloil 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.
Ziziphus nummularia
(Burm. f) Wight & Am.
Synonym Z. rotundifolia Lam. Rhamnus nummularia Burm. f.
Family Rhamnaceae.