MULAKA (Seed)
Mulaka consists of dried seed of Raphanus sativus Linn. (Fam. Brassicacem); a biennial herb, cultivated throughout India, upto 3000 m in the Himalayas and other hilly regions, for its roots.
SYNONYMS
Sansk: Salamarkataka, Visra, Saleya, Marusambhava
Assam. : Mulo
Beng. : Mula
Eng. : Radish
Guj. : Mulo
Hindi. : Muli
Kan. : Moolangi, Moolaogi, Mullangi, Mugunigadde
Kash. : —
Mal. : Mullanki
Mar. : Mula
Ori. : Mula, Rakhyasmula
Punj. : Moolak, Moolee, Moola
Tam. : Mullangi, Mulakam, Mullangu, Millangi
Tel. : Mullangi
Urdu. : Turb, Mooli
DESCRIPTION
a) Macroscopic
Seed reddish-brown, irregularly globose, sometimes flattened, 2-4 mm long and 2 mm wide; surface generally smooth and sometimes wrinkled and grooved at micropylar end; taste, oily.
b) Microscopic
Seed shows testa; consisting of single layer of nearly rectangular cells, covered with thin cuticle, followed by a layer of radially elongated, reddish-brown columnar cells, and integument 2-3 layers of compressed, thin-walled, parenchymatous cells; cotyledons and embryo consist of oval to polygonal, thin-walled, parenchymatous cells containing aleurone grains and oil globules.
Powder – Brownish-yellow; shows fragments of testa with hexagonal, thin-walled epidermis cells in surface view; oval to polygonal, thin-walled, parenchymatous cells of embryo and cotyledon; oil globules and aleurone grains present.
IDENTITY, PURITY AND STRENGTH
Foreign matter Not more than 2 Per cent, Appendix 2.2.2
Total ash Not more than 5.5 Per cent, Appendix 2.2.3
Acid-insoluble ash Not more than 1.5 Per cent, Appendix 2.2.4
Alcohol-soluble extractive Not less than 4.5 Per cent, Appendix 2.2.6
Water-soluble extractive Not less than 11 Per cent, Appendix 2.2.7
T.L.C. –
T.L.C. of the alcoholic extract on Silica gel ‘G’ plate using Toluene: Ethlacetate (9: 1) shows under U.V. (366 nm) a fluorescent zone at Rf. 0.95 (blue). On exposure to Iodine vapour five spots appear at Rf. 0.17, 0.31, 0.39, 0.70 and 0.95 (all yellow). On spraying with Vanillin-Sulphuric acid reagent and heating the plate at 105°C for ten minutes four spots appear at Rf. 0.17, 0.31, 0.39 and 0.95 (all violet).
CONSTITUENTS – Fixed Oil and Volatile Oil.
PROPERTIES AND ACTION
Rasa : Katu, Tikta, Kasaya
Guna : Laghu, Tiksna
Virya : Usna
Vipaka : Katu
Karma : Grahi, Hrdya, Kanthya, Kaphavatahara, Visahara, Vataslesmahara, Vahnidipana, Garbthasayasamikocaka, Kaphanissaraka, Mural, Pacaka, Vitanulomana, Mrdurecaka
IMPORTANT FORMULATIONS – Sarspadi Lepa
THERAPEUTIC USES – Gulma, Hrdroga, Kantha Roga, Sidhmakustha Jvara,Svasa, Nasika Roga, Aksi Roga, Anartava
DOSE – 1-3 g. of the drug in powder form.
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