SRUVAVRKSA (Leaf)
Sruvavrksa consists of dried leaf of Flacourtia indica Merr. Syn. F. ramontchi L Herit. (Fam. Flacourtiacem), a small deciduous, usually thorny tree or shrub, found in the sub-Himalayan tracts and outer Himalayas upto 1220 m and also common throughout Chota Nagpur, Deccan and South India.
SYNONYMS
Sanskrit : Vikankata, Gopakanta
Assamese : —
Bengali : Bincha, Bainchi, Bewich
English : Governors Plum, Madaraskara Plum
Gujrati : Kankata
Hindi : Bilangra
Kannada : llumanika, Dodda Gejjalakai
Kashmiri : —
Malayalam : Vavankataku, Vikamkath, Yaliya Nzerinigal, Loloikka
Marathi : Kaker
Oriya : Kantheikoli, Vaincha, Uincha
Punjabi : Kakoa, Kukoya
Tamil : Sottaikala, Kat Ukala
Telugu : Putregu, Kanavegu Chettu, Vikankata
Urdu : —
DESCRIPTION
a) Macroscopic
Leaves simple, sessile, 3 to 5 cm long and 1 to 3 cm wide, ovate to obovate, glabrous above, more or less pubescent beneath, serrate towards apex, and crenate in basal region, greenish-grey.
b) Microscopic
Leaf-
Midrib – Epidermis, single layered, covered externally with thin cuticle; followed by 1 or 2 layers of collenchyma and 3 to 5 layers parenchyma; lower epidermis with 2 or 3 layers of adjacent collenchyma and 2 or 3 layers of parenchyma; vascular bundle single, situated in the centre, covered by fibre sheath on both sides; a few unicellular, hooked, trichomes present on lower surface; a few rosette and prismatic crystals of calcium oxalate scattered in parenchyma cells.
Lamina – Epidermis single layered on both surfaces, covered with thin cuticle; a few simple, unicellular hairs with blunt tips present on lower surface; 2 layers of palisade cells and 2 or 3 layers of spongy parenchyma cells present; rosette and a few prismatic crystals of calcium oxalate present in epidermis, palisade and spongy parenchyma cells; a few veinlets present in between palisade and spongy parenchyma; stomata anisocytic, present on lower surface; palisade ratio 2 or 3; vein islet number 8 to 10 per sq. mm; veinlet termination number 10 to 12 per sq. mm; stomatal index 24 to 26.
Powder – Greenish-grey, shows fragments of collenchymatous, and parenchymatous cells; elongated, thick -walled pointed fibres; sinuous walled epidermal cells in surface view, containing rosette and a few prismatic crystals of calcium oxalate; palisade cells, a few anisocytic stomata, and pieces of unicellular hairs present.
IDENTITY, PURITY AND STRENGTH
Foreign matter Not more than 2 per cent, Appendix 2.2.2.
Total Ash Not more than 9 per cent, Appendix 2.2.3.
Acid-insoluble ash Not more than 0.6 per cent, Appendix 2.2.4.
Alcohol-soluble extractive Not less than 4 per cent, Appendix 2.2.6.
Water-soluble extractive Not less than 12 per cent, Appendix 2.2.7.
T.L.C.
T.L.C. of alcoholic extract of the drug on Silica gel ‘G’ plate using n-Butanol : Acetic acid: Water (4:1:5) shows under U.V. (366 nm) four fluorescent zones at Rf. 0.26, 0.76, 0.88 (all blue) and 0.98 (red). On exposure to Iodine vapour four spots appear at Rf. 0.26, 0.48, 0.61 and 0.88 (all yellow). On spraying with 5% Methanolic-Sulphuric acid reagent and heating the plate for ten minutes at 105oC six spots appear at Rf. 0.34, 0.48, 0.61, 0.76, 0.88 and 0.98 (all grey).
CONSTITUENTS – Tannin and Sugar.
PROPERTIES AND ACTION
Rasa : Madhura, Amla, Tikta
Guna : Laghu
Virya : Sita
Vipaka : Madhura
Karma : Dipana, Kaphahara, Pittahara, Pacana
IMPORTANT FORMULATIONS – Aragvadhadi Kvatha Curna
THERAPEUTIC USES – Sopha, Kamala, Raktavikara
DOSE – 50-100 gm for decoction.
Latest Govt Job & Exam Updates: