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Botanical Name :Operculina turpethum
Species :Operculina turpethum
Synonyms:Ipomoea turpethum, Turpeth Root. Indian Jalap. Trivrit. Nisoth. Operculina Turpethum.
Common Names: Turpeth, Fue vao, and St. Thomas lidpod.
Vernacular Names: Indian Jalap, St. Thomas lidpod, transparent wood rose, turpeth root, white day glory • Hindi: nisoth, panila, pitohri • Kannada: aluthi gida, bangada balli, bilitigade, devadanti, nagadanti • Malayalam: tigade • Marathi: or nisottar • Sanskrit: nishotra,triputa,trivrutt, trivrutha • Tamil: adimbu, caralam, civatai, kumpncan, paganrai • Telugu: tegada, trivrut tellatega • Bengali: tevudi • Arabic: turbuth.
Parts Used: Dried root, stem.
:Operculina turpethum is perennial herbaceous, hairy vines growing 4 to 5 meter in length, endemic to India. It is commonly found in North Circars and Deccan region up to 3000 ft. The leaves are alternate, very variable in shape, ovate, oblong and truncate or cordate at the base. The flowers are large, axillary and solitary. Fruit is a capsule with conspicuous enlarged sepals and thickened pedicles….CLICK & SEE THE PICTURES
Resin, a fatty substance, volatile oil, albumen, starch, a yellow colouring matter, lignin, salts, and ferric oxide. The root contains 10 per cent of resin, which is a glucoside, Turpethin, insoluble in ether, but soluble in alcohol, to which it gives a brown colour not removable by animal charcoal. To obtain pure, the alcoholic solution is concentrated; the resin is precipitated by, and afterwards boiled with, water, then dried, reduced to powder, digested with ether, and finally redissolved by absolute alcohol and deposited by ether. After being treated several times in this way, it is obtained in the state of a brownish resin, yielding on pulverization a grey powder, which irritates the mucous membrane of the nostrils and mouth. It is inflammable, burning with a smoky flame and emitting irritant vapours. With strong bases it acts like jalapin, takes up water, and is transferred into a soluble acid, while with dilute acids it is decomposed into turpetholic acid, and glucose.
Medicinal Uses: Cathartic and purgative. It is rather slow in its action, less powerful and less unpleasant than jalap.
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