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TURMERIC (from Fr. terre Write, turme...

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Originally appearing in Volume V27, Page 474 of the 1911 Encyclopedia Britannica.
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TURMERIC (from Fr. terre Write, turmeric, See also:Lat. terra merita, deserved, i.e. excellent See also:earth; See also:Skeat suggests that it is a barbarous corruption, perhaps of Arabic karkam, kurkum, See also:saffron or curcuma)  , the tuberous See also:root of Curcuma longa, L., an herbaceous perennial plant belonging to the natural See also:order Zingiberaceae . It is a native of See also:southern See also:Asia, being cultivated on a large See also:scale both on the mainland and in the islands of the See also:Indian Ocean . See also:Turmeric has been used from a remote See also:period both as a condiment and as a dyestuff, and to a more limited extent as a See also:medicine (now obsolete) . In See also:Europe it is employed chiefly as a dye, also as an ingredient in See also:curry See also:powder and as a chemical test for alkalies . The root is prepared by cleaning it and drying it in an See also:oven . There are several varieties (See also:Madras, See also:Bengal, Gopalpur, See also:Java, See also:China and See also:Cochin turmeric), differing chiefly in See also:size and See also:colour and to a slight degree in flavour . Some of these consist exclusively of the ovate central tubers, known as " bulbs," or " See also:round turmeric," and others of the somewhat cylindrical lateral tubers, which are distinguished in See also:trade as " fingers," or " See also:long turmeric." Both are hard and tough, but break with a See also:short resinous or waxy fracture, which varies in tint from an See also:orange See also:brown to a deep reddish brown . The colour is due to curcumin, C1,H1607, of which the See also:drug contains about o•3% . When pure it forms yellow crystals having a See also:vanilla odour and exhibiting a See also:fine See also:blue colour in reflected See also:light . It is soluble in See also:alcohol, in See also:chloroform and in alkaline solutions, but only sparingly in See also:water . See also:Paper tinged with a See also:tincture of turmeric exhibits on the addition of an See also:alkali a reddish brown tint, which becomes See also:violet on drying . This peculiarity was pointed out by H .

A . See also:

Vogel in 1815, and since that date turmeric has been utilized as a chemical test for detecting alkalinity . It is of no therapeutic value . In Sierra Leone a See also:kind of turmeric is obtained from a See also:species of Canna .

End of Article: TURMERIC (from Fr. terre Write, turmeric, Lat. terra merita, deserved, i.e. excellent earth; Skeat suggests that it is a barbarous corruption, perhaps of Arabic karkam, kurkum, saffron or curcuma)
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