SIGRU (Seed)
Sigru consists of dried seed of Moringa oleifera Lam. Syn. M. pterygosperma Gmrtn. (Fam. Moringacem), a small or medium sized tree, found wild in sub-Himalayan tract, and also commonly cultivated all over the plains of the country, for its leaves and fruits used as vegetable.
SYNONYMS
Sanskrit : Sobhanjana, Aksiva, Mocaka
Assamese : Saijna, Sohjna
Bengali : Sajina, Sajna
English : Drum-stick Tree, Horse Radish Tree
Gujrati : Sargavo, Sekato
Hindi : Sahajana, Munga,
Kannada : Neegge, Nugge Beeta
Kashmiri : —
Malayalam : Muringa, Tiksnggandha
Marathi : Shevaga, Shegatabeeja
Oriya : Sajana, Munga, Munika
Punjabi : Sohaniana
Tamil : Muringai, Muringai Virai
Telugu : Munaga
Urdu : Sahajan, Sohanjana
DESCRIPTION
a) Macroscopic
Seeds hard, trigonous, having short wings; size 0.5 to 1.0 cm long and 0.3 to 0.5 cm wide; colour greyish-cream; odour, not characteristic; taste; slightly bitter.
b) Microscopic
Seed shows 10 to 15 layered, tangentially elongated, thin-walled cells of the testa, followed by a wide zone of cells of cotyledons consisting of round to oval, thinwalled, parenchymatous cells with intercellular spaces and containing mucilage and oil globules.
Powder– Cream coloured; shows groups of elongated, round to oval, parenchymatous cells; oval to elongated, thin-walled cells of testa showing striations in surface view and oil globules.
IDENTITY, PURITY AND STRENGTH
Foreign matter Not more than 2 per cent, Appendix 2.2.2.
Total Ash Not more than 5 per cent, Appendix 2.2.3.
Acid-insoluble ash Not more than 0.8 per cent, Appendix 2.2.4.
Alcohol-soluble extractive Not less than 12 per cent, Appendix 2.2.6.
Water-soluble extractive Not less than 24 per cent, Appendix 2.2.7.
T.L.C.
T.L.C. of alcoholic extract on Silica Gel ‘G’ plate using Chloroforyn : Toluene (75:25) as mobile phase shows under U.V. (366 nm) three fluorescent zones at Rf. 0.52, 0.59 and 0.94 (all blue). On spraying with Anisaldehyde-Sulphuric acid reagent and heating the plate for about ten minutes at 110oC three spots appear at Rf. 0.52, 0.59 and 0.94 (all violet).
CONSTITUENTS – Fixed Oil.
PROPERTIES AND ACTION
Rasa : Katu, Tikta
Guna : Laghu, Ruksa, Tiksna
Virya : Usna
Vipaka : Katu
Karma : Caksusya, Dipana, Hrdya, Kaphahara, Sangrahi, Vatahara
IMPORTANT FORMULATIONS – Sudarsana Curna, Sothaghna Lepa, Sarsapadi Pralepa, Sarvajvarahara Lauha
THERAPEUTIC USES – Sotha, Gulma, Krmiroga, Medoroga, Mukhajadya, Pliharoga, Vataroga, Vidradhi, Vrana, Netraroga, Apaci, Galaganda, Siroroga, Atinidra
DOSE – 5-10 gm of the drug in powder form.
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