Jambhu consists of dried seeds of Syzygium cuminii (Linn.) Skeels Syn. Eugenia jambolana Lam.; E. cuminii Druce. (Fam. Myrtaceae); a large evergreen tree, attaining a height of 30 m and a girth of 3.6 m with a bole up to 15 m, found throughout India upto an altitude of 1,800 m.
Sanskrit : —
Assamese : —
Bengali : Badjam, Kalajam
English : Jambul tree
Gujrati : Gambu, Jamun
Hindi : Jamuna
Kannada : Nerale Beeja, Jambu Nerale
Kashmiri : —
Malayalam : Njaval
Marathi : Jambul
Oriya : Jam Kol, Jamu Kol
Punjabi : Jaamun
Tamil : Naval
Telugu : Alla Nereduchettu, Neredu chettu
Urdu : Jamun
2-5 seeds, compressed together into a mass resembling a single seed, the whole seed enclosed in a cream coloured, coriaceous covering, smooth, oval or roundish, 1 cm long, 1 cm wide, brownish-black; taste, astringent.
Seed – Shows cotyledons consisting of single layered epidermis, mesophyll composed of isodiametric, thin-walled, parenchymatous cells fully packed with simple starch grains, oval, rounded measuring 7-28 µ in dia., a few schizogenous cavities are also found.
Powder – Brown coloured; shows a few parenchymatous cells and numerous oval, rounded starch grains, measuring 7-28 µ in diameter.
CONSTITUENTS – Glycoside (Jamboline), Tannin, Ellagic acid and Gallic acid.
PROPERTIES AND ACTION
Rasa : Madhura, Amla, Kashaya
Guna : Guru, Ruksha
Virya : sita
Vipaka : Katu
Karma : Grahi, Kaphahara, Pittahara, Vishtambhi, Vatala
IMPORTANT FORMULATIONS – Pushyanuga Churna.
THERAPEUTIC USES – Madhumeha, Udakameha.
DOSE – 3-6 g. of the drug in powder form.